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Grain Refinement and Deformation Behaviour of Medium Carbon Steel Processed by ECAP
The work presents the results on grains refinement of steel containing 0,45 wt pct carbon resulted from severe plastic deformation (SPD). Different steel structures from prior solutioning and/or thermomechanical treatment were prepared for deformation experimental. A coarse grain ferrite-pearlite st...
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Published in: | Key engineering materials 2014-01, Vol.592-593, p.307-312 |
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description | The work presents the results on grains refinement of steel containing 0,45 wt pct carbon resulted from severe plastic deformation (SPD). Different steel structures from prior solutioning and/or thermomechanical treatment were prepared for deformation experimental. A coarse grain ferrite-pearlite structure was achieved applying solutioning. By application of thermomechanical (TM) controlled forging process, performing multistep open die forging, the refined ferrite-pearlite mixture was prepared. Final structure refinement of steel, having different initial structure, was then accomplished applying warm Equal Channel Angular Pressing (ECAP) at 400°C. Employment of this processing route resulted in extensive deformation of ferrite grains and cementite lamellae fragmentation. Applying the highest shear stress (εef - 4) the mixed structure of subgrains and ultrafine grains was present within the ferrite phase. In pearlite grains, modification of cementite lamellae due to shearing, bending, twisting and breaking was found efficient. The coarse cementite lamellae spheroidization was more efficient in prior TM treated steel. The tensile deformation records confirmed strength increase and diversity in strain hardening behaviour. |
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The tensile deformation records confirmed strength increase and diversity in strain hardening behaviour.</description><subject>Carbon</subject><subject>Cementite</subject><subject>Deformation</subject><subject>Equal channel angular pressing</subject><subject>Grain refinement</subject><subject>Grains</subject><subject>Spheroidizing</subject><subject>Structural steels</subject><issn>1013-9826</issn><issn>1662-9795</issn><issn>1662-9795</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqV0E1LwzAcx_EiCs6H95CjCO2Spg_JcZtzioridg9p8g_LaNOZdI69eyMTvOohJJAf38MnSW4Jzgqcs_F-v8-CsuAGa6zKHAzjp_lLVvI8LTnNKK5PkhGpqjzlNS9P4xsTmnKWV-fJRQgbjClhpBwly4WX1qF3MNZBF3tIOo3uwPS-k4PtHZrCWn7afudRb9ALaLvr0Ez6Jn4tB4AWvfleQQigUXNA89nk7So5M7INcP1zXyar-_lq9pA-vy4eZ5PnVBW4GlJT1qTOGckNV1wbg6UumCKUaQqV0XljCCkbihtZMK2bstZG1hVQaTA3JaWXyc0xu_X9xw7CIDobFLStdNDvgiBVXXNGOWZ_mOYYc4ZJEafT41T5PgQPRmy97aQ_CILFt72I9uLXXkR7Ee1FtI-HimgfI3fHyOClCwOotdhEQRc1_pP5AtxIl2Q</recordid><startdate>20140101</startdate><enddate>20140101</enddate><creator>Zrník, Jozef</creator><creator>Dobatkin, Sergey</creator><creator>Kraus, Libor</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20140101</creationdate><title>Grain Refinement and Deformation Behaviour of Medium Carbon Steel Processed by ECAP</title><author>Zrník, Jozef ; Dobatkin, Sergey ; Kraus, Libor</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-f57172812f9c9dff0ad48c138d3e6fd2bf115b30ba48ddb57dfa76e3af09f533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Carbon</topic><topic>Cementite</topic><topic>Deformation</topic><topic>Equal channel angular pressing</topic><topic>Grain refinement</topic><topic>Grains</topic><topic>Spheroidizing</topic><topic>Structural steels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zrník, Jozef</creatorcontrib><creatorcontrib>Dobatkin, Sergey</creatorcontrib><creatorcontrib>Kraus, Libor</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Key engineering materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zrník, Jozef</au><au>Dobatkin, Sergey</au><au>Kraus, Libor</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Grain Refinement and Deformation Behaviour of Medium Carbon Steel Processed by ECAP</atitle><jtitle>Key engineering materials</jtitle><date>2014-01-01</date><risdate>2014</risdate><volume>592-593</volume><spage>307</spage><epage>312</epage><pages>307-312</pages><issn>1013-9826</issn><issn>1662-9795</issn><eissn>1662-9795</eissn><abstract>The work presents the results on grains refinement of steel containing 0,45 wt pct carbon resulted from severe plastic deformation (SPD). Different steel structures from prior solutioning and/or thermomechanical treatment were prepared for deformation experimental. A coarse grain ferrite-pearlite structure was achieved applying solutioning. By application of thermomechanical (TM) controlled forging process, performing multistep open die forging, the refined ferrite-pearlite mixture was prepared. Final structure refinement of steel, having different initial structure, was then accomplished applying warm Equal Channel Angular Pressing (ECAP) at 400°C. Employment of this processing route resulted in extensive deformation of ferrite grains and cementite lamellae fragmentation. Applying the highest shear stress (εef - 4) the mixed structure of subgrains and ultrafine grains was present within the ferrite phase. In pearlite grains, modification of cementite lamellae due to shearing, bending, twisting and breaking was found efficient. The coarse cementite lamellae spheroidization was more efficient in prior TM treated steel. 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subjects | Carbon Cementite Deformation Equal channel angular pressing Grain refinement Grains Spheroidizing Structural steels |
title | Grain Refinement and Deformation Behaviour of Medium Carbon Steel Processed by ECAP |
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