Coarsening of M23C6 Precipitates in an Fe-Cr-C Ternary Alloy

被引：0
|
作者：
ZHU Na-qiong
机构：
来源：
JournalofIronandSteelResearch(International) | 2012年 / 19卷 / 09期
基金：
中国国家自然科学基金;
关键词：
M23C6; coarsening; PSD; interfacial energy;
D O I：
10.13228/j.boyuan.issn1006-706x.2012.09.007
中图分类号：
TG111 [金属物理学];
学科分类号：
0702 ; 070205 ;
摘要：
Coarsening of M23C6precipitates in an Fe-12.4Cr-0.13Cternary alloy has been investigated ageing at 780℃ up to 200h.Evolution of M23C6carbides at different ageing times was determined experimentally using transmission electron microscopy.Particle size distribution was obtained with different measuring methods.Simulations of coarsening of M23C6precipitates were carried out using computational thermodynamics and kinetics.Results showed low coarsening rates for M23C6precipitates in the Fe-Cr-C ternary alloy.Interfacial energy of M23C6 / ferrite interface is between 0.1and 0.3J · m -2 for the coarsening of M23C6ageing at 780℃.
引用
收藏
页码：62 / 67
页数：6
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