自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 13    No. 2    April 2006

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Influence of austenitizing temperature on apparent morphologies of
as-quenched microstructures of steels
LIU Yue-jun(刘跃军)1,2, LI Yi-min(李益民)2, HUANG Bai-yun(黄伯云) 2

1. Key Laboratory of New Materials and Technology for Package, Zhuzhou Institute of Technology,Zhuzhou 412008, China;
2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China

Abstract:The effects of austenitizing temperature on the morphologies and substructures of as-quenched microstructure were investigated by using 13 medium and high carbon steels. The formation reasons of various morphologies of martensite quenched at different austenitizing temperatures were also studied. The results show that the packet martensite in medium and high carbon steels quenched at higher austenitizing temperature is entirely different from that in as-quenched low carbon steels, which is still plate martensite, and not lath martensite. All the change laws of as-quenched microstructures in medium and high carbon steels are identical with an increase in austenitizing temperature, and the austenitizing temperature can merely change the combined morphology of martensitic platelets,but cannot alter the type of product of martensitic transformation in commercial steels.

 

Key words: martensite; packet martensite; plate martensite; high temperature hardening

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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