Alloying effects on reverse transformation to austenite from pearlite or tempered martensite structures

Goro Miyamoto, Zhao Dong Li, Hirokazu Usuki, Tadashi Furuhara

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Reverse transformation has been frequently used to refine austenite grain size for refining ferrite, pearlite and martensite structures. However, kinetics and microstructure change during reverse transformation to austenite has not been examined systematically compared with the austenite decomposition reaction. Therefore, alloying effects of 1mass% Mn, Si and Cr on reverse transformation kinetics from pearlite and tempered martensite structures in Fe-0.6mass%C alloys were investigated in this study. Vickers hardness of all the specimens increases with increasing holding time at 1073K because reversely-formed austenite transforms to martensite by quenching. In the reverse transformation from pearlite structure, the kinetics of reverse transformation is hardly changed by the Mn addition while Si and Cr additions delay it. Kinetics of reverse transformation from tempered martensite structure becomes slower than from the pearlite structure in all the alloys. In particular, retarding effect by the Cr addition is most significant among those elements.

本文言語English
ホスト出版物のタイトルTHERMEC 2009
編集者Tara Chandra, Tara Chandra, Tara Chandra, N. Wanderka, N. Wanderka, N. Wanderka, Walter Reimers, Walter Reimers, Walter Reimers, M. Ionescu, M. Ionescu, M. Ionescu
出版社Trans Tech Publications Ltd
ページ3400-3405
ページ数6
ISBN(印刷版)0878492941, 9780878492947
DOI
出版ステータスPublished - 2010
イベント6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, Germany
継続期間: 2009 8 252009 8 29

出版物シリーズ

名前Materials Science Forum
638-642
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
国/地域Germany
CityBerlin
Period09/8/2509/8/29

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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