Time-Temperature-Transformation Diagram of Successive γ → ε′ → α′ Martensitic Transformation in SUS304L Stainless Steel

被引：5
|
作者：
Lee, Jae-hwa [1 ]
Fukuda, Takashi [1 ]
Kakeshita, Tomoyuki [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Dept Mat Sci & Engn, Suita, Osaka 5650871, Japan
来源：
MATERIALS TRANSACTIONS | 2008年 / 49卷 / 09期
关键词：
iron-based alloy; martensitic tranformation; kinetics;
D O I：
10.2320/matertrans.MAW200814
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have investigated the kinetics of successive gamma -> epsilon' -> alpha' martensitic transformation in a SUS304L stainless steel by isothermal holding experiments. An in-situ optical micrograph observation suggests that the gamma -> epsilon' martensitic transformation has so-called isothermal kinetics while the epsilon' -> alpha' martensitic transformation has so-called athermal kinetics. The TTT diagram corresponding to the formation of 0.5 vol% of alpha'-martensite via epsilon'-martensite front gamma-phase shows a C-curve with a nose temperature located at about 103 K, due to the isothermal kinetics of the gamma -> epsilon' transformation. [doi: 10.2320/matertrans.MAW200814]
引用
收藏
页码：1937 / 1940
页数：4
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