機械材料・材料加工技術講演会講演論文集
Online ISSN : 2424-287X
セッションID: 335
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335 Conshearing(連続ECAE)加工による材質制御(OS 加工による材料の機能創製)
宇都宮 裕斎藤 好弘左海 哲夫岡村 吉晃初田 憲一
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The ECAE process was successfully used as an intense straining process to obtain ultra-fine grained metals. However, it has a problem in applicability to long, thin coiled strips. The authors recently proposed a novel continuous shear deformation process called conshearing to solve this problem. Long and thin strip is continuously fed by rolls and passes the ECA die. This process can be used to control texture. Ti-added ultra low carbon interstitial-free (IF) steel strips are subjected to the conshearing process using 55 degree die. The process was repeated up to four passes at room temperature. The shear texture with {110}<001> and {112}<111> components is evolved. The tensile strength increases from 280MPa to 450MPa.

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