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steel cleanlinessinclusions in steel s

Steel Cleanliness Inclusions in Steel S

3) is found in steels deoxidized with excess amounts of aluminum.These inclusions are less soluble in steel than manganese sul de and separate out earlier,form-ing large particles.3.Chromite (MnO.Cr 2O 3 or FeO.Cr 2O 3) is a spinel found in chromium steels or where ferrochromium has been added.Par-ticles are angular with a tendency to What are the non metallic inclusions in steel?What are the non metallic inclusions in steel?Inclusions in Steel Non-metallic inclusions in steel are termed as indigenous inclusions and exogenous inclusions according to their sources.2.1 Indigenous Inclusions Indigenous inclusions are deoxidation products or precipitated inclusions during cooling and solidification of steel.INCLUSIONS IN CONTINUOUS CASTING OF STEEL When does cleanliness become a topic of interest to the heat treater?When does cleanliness become a topic of interest to the heat treater?18August 2009 - IndustrialHeating teel cleanliness has become a topic of great interest to the heat treater given the reality that steel is a global-sourced commodity.Often,the type and dis- tribution of inclusions have a signi cant in uence on mechanical properties.Steel Cleanliness Inclusions in Steel S

Where can I find massive spherical inclusions in steel?Where can I find massive spherical inclusions in steel?They are angular and always form as monophase inclusions.Massive spherical inclusions are found in high-sulfur,free-ma- chining steels.In this type of steel,low silicon contents give inclusions with the best length-to-width ratio for optimum machinability.Steel Cleanliness Inclusions in Steel S(PDF) Integrated modeling of steel refining,casting and

Integrated Modeling of Steel Refining,Casting and Rolling Operations to Obtain Design Set Points for Quality Steel Sheet Production Akash Guptaa,Prabhash Kumara,Ravikiran Anapagaddia,Niranjan Reddya ,Sharad Goyala,A.K.Singha,* and K.A.Padmanabhana,b a TRDDC-TCS Innovation Labs,TCS Ltd.,54 B,Hadapsar Industrial Estate,Pune,India b School of Engineering Sciences (PDF) Refractory solutions to improve steel cleanlinessIn addition,minimizing residual impurities including sulphur,phosphorous,hydrogen,nitrogen,and carbon is also targeted during clean steel production.RHI provides a range of refractory

20NiMo9-7* - Ovako

IQ-Steel,a further development of BQ-Steel,is an isotropic and ultra clean steel with properties that match re-melted steels.Based on thousands of examinations by Ovako into the effects of defects on fatigue performance,the metallurgy of IQ-Steel is purer and far more consistent than conventional grades,and designed specifically to perform 3sio - Document PDFTranslate this pageSteel Cleanliness Inclusions in Steel S T H r i a l H 18 August 2009 - IndustrialHeating teel cleanliness has become a topic of great interest to the heat treater given the reality that steel is a Télécharger le PDF (198,25 KB)A Comprehensive Model for Assessing the Impact of Steel Oct 03,2014·Steel cleanliness as measured by nonmetallic inclusion content in steel plays a major role in affecting bearing durability.A high-fidelity virtual bearing life test model was developed to predict the impact of inclusions on bearing fatigue life.

A method for quantitative evaluation of steel cleanliness

Jan 12,2017·A new method of assessing the non-metallic inclusion contents of steel has been developed.Beginning with the conventional metallographic technique of matching under the microscope the unknown samples with the accepted standards,the results of this rating are converted into relative frequencies for each rating class.The converted results,in the form of groups of real numbers,thenAIST - 2008 AISTech Conference ProceedingsNon-metallic inclusions can generate many defects in the steel product.[1-3] Removing more inclusions thus improving steel cleanliness is one of the most important tasks for steelmakers.Slag refining is well used to improve steel cleaniness by absorbing inclusions,lowing sulfur or phosphorus,or adjusting inclusion composition and morphology.[4]AIST - 2013 AISTech Conference ProceedingsFormed in January 2004 from the merger of the Iron Steel Society and the Association of Iron and Steel Engineers,AIST is proud to be the #1 source for all your steel-related needs.We encourage you to explore all that we have to offer.From technology-based Operating Committees to our local Member Chapers,the opportunities to network with others and expand your technical know-how abound.

ASTM E45 METHOD D PDF - Pinards PDF

·structure,cleanliness (inclusions),and incorporates specialized heat treatments to ensure ultimate quality of both our carbon stainless steel fluid ends.APPROVED SIZE 52 23 20 Combined with our other proprietary processes including a critical autofrettage process,ST9 creates superior products that minimizeAluminum Casting Methods - PDF documentsSteel cleanliness inclusions in steel s Open document Search by title Preview with Google Docs T h r i a l h dized with aluminum .inclusions are found in cast steels singly and as laths or tabular crystals and are often observed withArticle Controlling corrosion in the back end of fuel International Journal of Nuclear Energy Science and Technology; 2005 Vol.1 No.2/3; Title Controlling corrosion in the back end of fuel cycle using nitric acid grade stainless steels Authors Vivekanand Kain,P.K.De.Addresses Materials Science Division,Bhabha Atomic Research Centre,Mumbai 400 085,India.' Materials Science Division,Bhabha Atomic Research Centre,Mumbai 400 085,India

Author W.M.Wojcik,H.F.WalterPublish Year 1966State of the Art in Evaluation and Control of Steel

Steel cleanliness is controlled by attention to a wide range of important operating conditions throughout the steelmaking and casting processes.For ladle operations,FeO and MnO in the slag,ladle treatments,and inclusion modification are discussed.For tundish operations,tundish depth and capacity,casting transitions,refractory lining,tundish flux; gas stirring,and flow controls are discussed.Automated Steel Cleanliness Analysis Tool (ASCAT The objective of this study was to develop the Automated Steel Cleanliness Analysis Tool (ASCATTM) to permit steelmakers to evaluate the quality of the steel through the analysis of individual inclusions.By characterizing individual inclusions,determinations can be made as to the cleanliness of the steel.Automated Steel Cleanliness Analysis Tool (ASCAT) - COREResearch conducted by RJLG with AISI (American Iron and Steel Institute) and SMA (Steel Manufactures of America) members indicates that the ASCAT has application in high-grade bar,sheet,plate,tin products,pipes,SBQ,tire cord,welding rod,and specialty steels and alloys where control of inclusions,whether natural or engineered,are

Automated Steel Cleanliness Analysis Tool (ASCAT) - UNT

The objective of this study was to develop the Automated Steel Cleanliness Analysis Tool (ASCATTM) to permit steelmakers to evaluate the quality of the steel through the analysis of individual inclusions.By characterizing individual inclusions,determinations can be made as to the cleanliness of the steel.Cited by 6Publish Year 1985Author Murali D.TumuluruQualitative and quantitative determination of inclusions steels with lower amounts of inclusions need to be used.Clean steels are produced with technologies that minimize the amount of inclusions in the microstructure.The demand for cleaner steels is high,and lowering of non-metallic oxide inclusions and controlling their morphology,composition,and size distribution is vital.Control of TiN precipitation behavior in titanium Dec 01,2020·The reaction of air with molten steel and the raw with auxiliary materials for steelmaking will increase the nitrogen content in molten steel.As an important auxiliary material,the cleanliness of the ferrotitanium alloy greatly affects the precipitation behavior of TiN.

DEKKERS,R.,BLANPAIN,B.,PLESSERS,J.,and

Since the steel-slag interface plays a crucial role in the separation of inclusions from the steel,research on the influence of hydrogen or water on the slag properties,e.g.the viscosity or the heat transfer,is necessary.Only recently,in situobservation of the behaviour of inclusions at the steel or slag-steel interface has become possible byDonde Se Ubican Los Testiculos kitore 2020Translate this pageThis is a good start donde se ubican los testiculos many cases bloods sets in los angeles county pirus Somehow we manage to cuddle up to cat shows festivals we are not kitten around here if you re looking for a meow velous time these cat tastic festivals are a..The first step for donde se ubican los testiculos It looks and sounds great for many peoples news Donde está México Donde está EFFECTS OF NON-METALLIC INCLUSIONS ON FATIGUECalcium Treated Steels.Espoo 2004,Helsinki University of Technology.Keywords fatigue strength,nonmetallic inclusions,calcium treated steel,statistical analysis,statistics of extremes,ultrasonic testing,machinability ABSTRACT Fatigue behaviour of 22 industrial test charges of AISI 8620 carburizing steel

EVALUATION AND CONTROL OF STEEL CLEANLINESS

Abstract.The demand for cleaner steels increases every year.In addition to lowering non-metallic oxide inclusions and controlling their morphology,composition and size distribution,clean steel requires lowering other residual impurity elements such as sulfur,phosphorus,hydrogen,nitrogen and even carbon [1,2] ,and trace elements such as As,Sn,Sb,Se,Cu,Pb,and Bi [3].EVALUATION AND CONTROL OF STEEL CLEANLINESS REVIEW__Translate this page85th Steelmaking Conference Proceedings,ISS-AIME,Warrendale,PA,2002 pp.431-452.EVALUATION AND CONTROL OF STEEL CLEANLINESS ? REVIEW Lifeng ZHANG,Brian G.THOMAS Dept of Mech.Engg.,University of Illinois at Urbana-Champaign 144 Mech.Bulg.,1206 W.Green St.Urbana,IL 61801,USA Tel 1-217-244-4655 Fax 1-217-244-6534 EmailEVALUATION AND CONTROL OF STEEL CLEANLINESSSteel cleanliness depends on the amount,morphology and size distribution of non-metallic inclusions in steel.The definition of clean steel varies with steel grade and its end use,as shown in Table II.Table II Steel cleanliness requirements for various steel grades Steel product Maximum impurity fraction Maximum inclusion size

Effect of protected electroslag remelting on cleanliness

Jul 27,2016·The protected ESR process removes Al 2 O 3 SiO 2 MnO inclusions,and the remaining inclusions in the steel can be divided into two categories,Al 2 O 3 and Al 2 O 3 MnS.Keywords Electroslag remelting G20CrNi2Mo Cleanliness InclusionsEffect of protected electroslag remelting on cleanliness The protected ESR process removes Al 2 O 3 SiO 2 MnO inclusions,and the remaining inclusions in the steel can be divided into two categories,Al 2 O 3 and Al 2 O 3 MnS.Keywords Electroslag remelting ,G20CrNi2Mo ,Cleanliness ,InclusionsFRACTURE TOUGHNESS AS A CONTROLLING TOOL AGAINST PITTING Jul 24,2004·Steel castings Handbook by ASM p 2-33 states that Cast steel is exceptionally wellsuited for cut-tooth gears.Unlike wrought steel products,it does not possess lines of flow.In cases where such lines run parallel to he periphery,potential cleavage planes extend transversely across the teeth and are focal points of possible tooth breakage.

FRACTURE TOUGHNESS AS A CONTROLLING TOOL

Jul 24,2004·Steel castings Handbook by ASM p 2-33 states that Cast steel is exceptionally wellsuited for cut-tooth gears.Unlike wrought steel products,it does not possess lines of flow.In cases where such lines run parallel to he periphery,potential cleavage planes extend transversely across the teeth and are focal points of possible tooth breakage.Federal Register : Exclusion of Particular Products from Jul 12,2002·Pursuant to authority granted to the United States Trade Representative (USTR) in Presidential Proclamation 7529 of March 5,2002 (67 FR 10553),the USTR has found that particular products should be excluded from actions under section 203 of the Trade Act of 1974 (19 U.S.C.2253) (Trade Act) withFile Size 198KBPage Count 2Explore furtherInclusions and Laminations - Rolled Alloys,Inc.rolledalloysMetallurgical Processes and Defects in Steel Products ispatguruNon-Metallic Inclusions in Steels - Slag InclusionssteeldatafoInclusions in Stainless Steels A Review Request PDFresearchgate.netINCLUSIONS IN CONTINUOUS CASTING OF STEELccc.illinois.eduRecommended to you based on what's popular FeedbackAn Overview of Steel Cleanliness From an IndustryThe most common parameter that relates to steel cleanliness is non-metallic inclusions,especially their composition,size and distribution.All steel contains some level of non-metallic inclusions,however not all are equally harmful.

GEARCALC/ page 2

Carbon content of carburizing steels range from 0.15 to 0.25%.Low alloy steels (e.g.AISI 8620) are used for small gears and moderate loads while high alloy steels (e.g.AISI 4820) are used for large gears and high loads.Minimum surface hardness ranges from HB = 615 to HB = 654.Hunan Valin Steels crude steel output up 15.8 percent in ·Models for viscosity and shear localization in bubble-rich magmas.NASA Astrophysics Data System (ADS) Vona,Alessandro; Ryan,Amy G.; Russell,James K.; Romano,Claudia.2016-09-01.Bubble content influences magma rheology and,thus,styles of volcanic eruption.Increasing magma vesicularity affects the bulk viscosity of the bubble-melt suspension and has the potential to promoteINCLUSIONS IN CONTINUOUS CASTING OF STEELAlumina (Al2O3) inclusions in LCAK steel,and silica (SiO2) inclusions in Si-killed steel are generated by the reaction between the dissolved oxygen and the added aluminum and silicon deoxidants are typical deoxidation inclusions.Alumina inclusions are dendritic when formed in a high oxygen environment,as pictured in figure 442).

Inclusion control for clean steel - SlideShare

Jan 15,2014·Steel cleanliness is the one unifying theme in all steel plants as problems in steel cleanliness can lead to internal rejects or customer dissatisfaction with steel products.Thus all steel plants are continually attempting to improve their practices to produce more consistent products.Inclusions In Continuous Casting Of SteelCasting Of Steel of steel Request PDF Continuous casting A longitudinal facial crack is a specialized type of defect that only occurs in continuous casting processes.This defect is caused by uneven cooling,both primary cooling and secondary cooling ,and includes molten steel qualities,such as the chemical composition being out of Inclusions In Continuous Casting Of SteelSteel Cleanliness Inclusions in Steel S Inclusions are basically classified with re- gard to surface cleanliness and internal cleanliness of a continuously cast slab under a stable casting condition and under a transitional Page 21/27.Read Online Inclusions In Continuous Casting Of Steel

Inclusions In Continuous Casting Of Steel

Steel Cleanliness Inclusions in Steel S Inclusions are basically classified with re- gard to surface cleanliness and internal cleanliness of a continuously cast slab under a stable casting condition and under a transitional nonstable casting condition.They areInclusions In Continuous Casting Of SteelSteel Steel Cleanliness Inclusions in Steel S Inclusions are basically classified with re- gard to surface cleanliness and internal cleanliness of a continuously cast slab under a stable casting condition and under a transitional nonstable casting condition.They areKarim Badr,Marcos Tomas,Marcus Kirschen and Gavin Refractory Solutions to Improve Steel Cleanliness inclusions,they are classified into two types; the first are termed indigenous oxide inclusions that stem from deoxi-dation products.

Leveraging Heat Treatment to Control Inclusions in

Jul 10,2017·Leveraging Heat Treatment to Control Inclusions in Stainless Steel.Fig.1.At left is a scanning-electron microscope (SEM) image of an alumina cluster inclusion in a sample taken from liquid steel at a time when the alumina is just starting to transform to magnesium spinel (arrowed).The collage at right shows manganese-silicate inclusion in MaterialCarbon content of carburizing steels range from 0.15 to 0.25%.Low alloy steels (e.g.AISI 8620) are used for small gears and moderate loads while high alloy steels (e.g.AISI 4820) are used for large gears and high loads.Minimum surface hardness ranges from HB = 615 to HB = 654.Micro cleanliness of steel Keyword Found Websites Listing Steel Cleanliness Inclusions in Steel S.Keyword-suggest-tool teel cleanliness has become a topic of great interest to the heat treater given the reality that steel is a global-sourced commodity.Often,the type and dis-tribution of inclusions have a signi cant in uence on mechanical properties.

Microstructure and Properties of Different Preforms for

steels for the manufacture of 23mm cartridge case and reveal the cause of defects during theirs production.Experimental work Material and technology The materials used in this study were C10E and R2 steels,used for the manufacture of the cartridge case of 23mm.Steel C10E was supplied as bars ( 40 mm) and steel R2 was supplied as cups.Missouri University of Science and Technology Scholars'Non-metallic inclusions can generate many defects in the steel product.[1-3] Removing more inclusions thus improving steel cleanliness is one of the most important tasks for steelmakers.Slag refining is well used to improve steel cleaniness by absorbing inclusions,lowing sulfur or phosphorus,or adjusting inclusion composition and morphology.[4]Non metallic inclusions Keyword Found Websites Listing Steel Cleanliness Inclusions in Steel S.Heat-treat-doctor DA 25 PA 38 MOZ Rank 69 (or in nitrided steels),and its not normally classi ed as a non-metallic inclusion; Occurs as needles or bands that tend to fol-low the grain boundaries; Iron oxide is generally found with manganese oxide

Non-Metallic Inclusions - The Kent D.Peaslee Steel

During Steel Ingot Teeming Process Ingot Met Forum 2009-11.Steel Refining and Continuous Casting Collaborative Research Shougang Research Institute 2008-10 Papers 1.Yang,S.,Zhang PRODUCT XGEN FLUID END SPECIFICATIONS - ST9Apr 17,2018·structure,cleanliness (inclusions),and incorporates specialized heat treatments to ensure ultimate quality of both our carbon stainless steel fluid ends.APPROVED SIZE 52 23 20 Combined with our other proprietary processes including a critical autofrettage process,ST9 creates superior products that minimizePhase-field simulations of grain growth in materials Steel cleanliness,inclusions in liquid steel Metal and slac interactions with refractory material at high temperatures Experiments + modeling (FactSage,Lattize Bolzman) Close collaboration with industry 3 professors,3 postdocs,12 doctoral students,3 technicians

Phase-field simulations of grain growth in materials

Steel cleanliness,inclusions in liquid steel Metal and slac interactions with refractory material at high temperatures Experiments + modeling (FactSage,Lattize Bolzman) Close collaboration with industry 3 professors,3 postdocs,12 doctoral students,3 techniciansQualitative and quantitative determination of inclusions Keywords wagon wheels,steel cleanliness,inclusions,toughness,Charpy,SEM,EDS.Introduction A research team from a South African company that produces railway wagon wheels is involved in a research project to assess the cleanliness of 34-inch cast wagon wheels made from medium-high carbon steel grade and have a ferrite-pearlite Related searches for steel cleanliness inclusions in steelsstainless steel inclusionoxide inclusions in steelsSome results are removed in response to a notice of local law requirement.For more information,please see here.12345NextInclusions in Steel Titanium ManganeseSteel Cleanliness Inclusions in Steel.t cleanliness has become a topic of great interest teel to t the heat treater given the reality that steel is a global-sourced commodity.Often,the type and disg ttribution of inclusions have a significant influence on mechanical properties.

Related searches for steel cleanliness inclusions in steels

stainless steel inclusionoxide inclusions in steelsSome results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextRequirements on Internal Quality of Bloom ProductsSteel Cleanliness Inclusions (1 of 12) Inclusions Steel cleanliness is differentiated between Microscopic and Macroscopic inclusions. Microscopic inclusions in accordance with DIN 50602 are inclusions with a maximum size of 0,030 mm².The test is carried outSecondary Steelmaking Principles and Applications - PDF of the market for fine steels by approximately a factor of three has been predicted from 1985 to year 2000 by Japans fine steel study group.7 As shown in Table 1.1,all kinds of secondary steelmaking operations are capable of yielding steels with more cleanliness.Inclusions are generally harmful to the mechanical properties and corrosion

State of the Art in Evaluation and Control of Steel

Because no single method can measure all of these aspects accurately,it is best to combine several methods together to quantify steel cleanliness in a given operation.Owing to the cost,time requirements,and sampling difficulties,steel cleanliness is widely inferred using total oxygen,nitrogen pick-up,and other indirect methods.State of the Art in Evaluation and Control of Steel Translate this pageThis paper first reviews the current state-of-the-art in the evaluation of steel cleanliness,discussing over 20 different methods.The demand for cleaner steels requires lowering non-metallic oxide inclusions and also controlling their morphology,composition and size distribution.Steel Cleanliness Inclusions in Steel 2009-08-03 Aug 03,2009·Aluminum sulfide (Al2S3) is found in steels deoxidized with excess amounts of aluminum.These inclusions are less soluble in steel than manganese sulfide and separate out earlier,forming large particles.3.Chromite (MnO.Cr2O3 or FeO.Cr2O3) is a spinel found in chromium steels or where ferrochromium has been added.

Steel Cleanliness Steel Casting (Metalworking) Free

Steel cleanliness is controlled by wide range ope rating practices throughout th e steelmaking processes.These include the time and location of deoxidant and alloy additions,the extent and sequence of secondary metallurgy treatments,stirring and tr ansfer operations,shrouding systems,tundish geometry and practices,the absorption capacity of the various metallurgical fluxes,and casting Steel products; Trade Act exclusions,- July 12,2002 Jul 12,2002·(C) Steel known in industry usage as flapper valve steel,entered in an aggregate annual quantity not to exceed 17,500 t during the 12-month period beginning on July 12,2002 or July 12,2003 or during the period July 12,2004 through March 20,2005,inclusive,the foregoing hardened and tempered,surface polished; thickness not over 1.0 m Survey of fatigue failures in helicopter components and Sep 01,2013·A summary of the main areas in which steel components experience fatigue failure is given in Table 4.In addition,the main types of steel used by AWL are shown in Fig.6.From Table 4 it can be seen that approximately 20% of all the steel failures investigated by AWL were gears,closely followed by bearings at 17.6% and hydraulic pipes at 15.3

TECHNICAL LIBRARY

Steel Superalloys Purification 20.ABSTRACT CConHnue on reverse side il necessary and Identify by block number) Background on the mechanisms and kinetics of filtration is discussed and the Drexel mathematical model is further elaborated and updated to encompass filtra- tion at the higher temperatures encountered in steels and superalloys.A novelTITANIUM ALLOY DEVELOPMENT FOR AM UTILIZINGcontrol techniques common to the production of conventional powders (iron,low alloy steel and stainless steels) for the automotive sector can be utilized to ensure that titanium powder,made from scrap,can be manufactured into high quality parts.In addition,the parts made for theThe Effects of Steel Cleanliness and Inclusions on the The effects of cleanliness of the steel and calcium-aluminum deoxidation practice on the sulfide stress corrosion cracking (SSC) behavior of quenched and tempered AISI 4137-H steel were studied using the NACE test on smooth tensile specimens.

The most common parameter that relates to steelcleanlinessis non-metallic inclusions,especially their composition,size and distribution.All steelcontains some level of non-metallic inclusions,however not all are equally harmful.An Overview of Steel Cleanliness From an Industry Perspective

Was this helpful?People also askWhich is the most common parameter that relates to steel cleanliness?Which is the most common parameter that relates to steel cleanliness?The most common parameter that relates to steel cleanliness is non-metallic inclusions,especially their composition,size and distribution.All steel contains some level of non-metallic inclusions,however not all are equally harmful.An Overview of Steel Cleanliness From an Industry PerspectiveUNITED STATES DEPARTMENT OF ENERGY (DOE) No.Final Technical Report for DOE/EERE Project DE- FC36- 991D-13820 Development of the Automated Steel Cleanliness Analysis Tool December 30,2005 DOE F 241.3 (2-01) p.2 of 2 ANNOUNCEMENT UNITED STATES DEPARTMENT OF ENERGY Scientific and Technical Information (STI) For FinancialUnderstanding the Role of Inclusions on the Dynamic ·High manganese lightweight steel alloys in the FeMnAlC system are promising alternatives to quenched and tempered Cr and Mo steels for transportation and military applications.The understanding of nonmetallic inclusion formation and their effect on the mechanical properties is of extreme importance for further alloy development.Sharp and brittle AlN forms prior to the liquidus and

numerical circulation model Topics by Science.gov

Jan 01,2018·Numerical Modeling of Ocean Circulation.NASA Astrophysics Data System (ADS) Miller,Robert N.2007-01-01.The modelling of ocean circulation is important not only for its own sake,but also in terms of the prediction of weather patterns and the effects of climate change.This book introduces the basic computational techniques necessary for all models of the ocean and atmosphere,and the types of killed steelWhat is Killed Steel.Dec 15 2014 0183 32 A variety of killed steel is known as semi-killed steel Semi-killed steel is an intermediate steelbetween killed and rimmed steels It also has variable degrees of uniformity in composition In this steel more gas is evolved than killed steel but lower than rimmed or capped steel All alloy steels are typically killed steels and this steelwhy quantification of inclusions provides confidence in a IQ-Steels,in which the size and distribution of inclusions is closely controlled can have a hugely beneficial effect in improving fatigue characteristics.The potential improvement in fatigue is illustrated by the rotating bending fatigue properties for conventional steel,BQ-Steel and IQ-Steel as shown in Fig 1.

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