期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Phase Characterization and Formation Behavior in 6 wt%Si High-silicon Austenitic Stainless Steel during Isothermal Aging
1
作者 Sihan Chen Tian Liang +6 位作者 Yangtao Zhou Weiwei Xing Chengwu Zheng Yingche Ma JinMing Wu Guobin Li Kui Liu 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2021年第5期649-656,共8页
The precipitation behavior of different phases in a high-silicon stainless steel(6 wt%Si)during aging at 600–1050℃for24 h was investigated.The morphology,crystal structure and composition of various precipitates wer... The precipitation behavior of different phases in a high-silicon stainless steel(6 wt%Si)during aging at 600–1050℃for24 h was investigated.The morphology,crystal structure and composition of various precipitates were detailly characterized using optical microscopy,scanning electron microscopy and transmission electron microscopy.Four phases were mainly identified:χ-phase,M_6C carbides,σphase and a new type of fcc-phase.During aging at 600–900℃,the main precipitate was(Cr,Mo and Si)-richχ-phase which was directly precipitated fromγmatrix.Theχ-phase was calibrated as bcc structure with a lattice parameter of 8.90?.The peak temperature for the precipitation ofχ-phase was 800℃,and it was dissolved when aging at temperatures above 1000℃.Theσ-phase was observed only at 700℃and grew next toχ-phase.Above 700℃,a new fcc-phase was found to be precipitated along withχ-phase,with a space group of Fd3c and a lattice parameter of 12.56?.The M_6C carbides started to be precipitated at 700℃in the vicinity ofχ-phase.And its amount basically increased with the increasing of temperature.An orientation relationship between M_6C/γwas found:[100]c//[100]γ,(001)c//(001)γ,i.e.,the cube-on-cube relationship. 展开更多
关键词 High-silicon austenitic stainless steel PRECIPITATES χ-Phase Precipitation behavior
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部