ヘテロ組織を有する Fe-Mn 超強靭焼結低合金鋼の開発

Translated title of the contribution: Mechanical properties of MIM super high strengthening sintered low alloy steels with fine heterogeneous

安井 健太, 長田 稔子, 工藤 健太郎, 津守 不二夫, 三浦 秀士

Research output: Contribution to journalArticle

Abstract

<p>Fe-Ni low alloy steels with heterogeneous structure fabricated through metal injection molding process show high strength and elongation. However, these materials are high cost because they contain Ni. The purpose of this study is development of material that indicates high strength and elongation in using Mn instead of Ni. Cost of Mn is lower than that of Ni. In this report, we were various survey of sintered and heat treated Fe-2Mn-0.65C, Fe-6Mn-0.70C. As results, sintered Fe-2Mn-0.65C shows the ferrite pearlite structure, therefore elongation of this material was 21.0 %. On the other hand, sintered Fe-6Mn-0.70C has pearlite and bainite structure and elongation of this material was 2.8 %, much lower than that of Fe-2Mn-0.65C. Complex structure of martensite and tempered martensite was confirmed at heat treated Fe-2Mn-0.65C. Heat treated Fe-2Mn-0.65C Tensile strength and elongation of heat treated Fe-2Mn-0.65C were 1193 MPa and 0.8 %.</p>
Translated title of the contributionMechanical properties of MIM super high strengthening sintered low alloy steels with fine heterogeneous
Original languageJapanese
Pages (from-to)S0410205
Journal年次大会
Volume2016
Issue number0
DOIs
Publication statusPublished - 2016

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