Precipitated phases of superaustenitic stainless steel 654SMO

IF 3.1 2区 材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING
Zhi-gang Song , En-xiang Pu
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引用次数: 14

Abstract

The phase diagram of superaustenitic stainless steel 654SMO was calculated by thermodynamic software and the precipitated phases in the specimens aged at 800 – 1100 °C for 1 h were studied by methods of physicochemical phase analysis, scanning electron microscopy and transmission electron microscopy. The results showed that the size of precipitated particles increased with increasing the temperature. The amount of second phases reached the maximum value at 900 °C, but decreased above 900 °C. There were about eight kinds of precipitated phases in 654SMO including σ phase, Cr2N, μ phase, χ phase, Laves phase, M23C6, M6C and M3C, in which the σ phase and Cr2 N were the dominant precipitated phases.

超奥氏体不锈钢654SMO的析出相
采用热力学软件计算了超奥氏体不锈钢654SMO的相图,并采用物化相分析、扫描电镜和透射电镜等方法研究了试样在800 ~ 1100℃时效1h时析出相。结果表明:随着温度的升高,析出颗粒的尺寸增大;第二相的数量在900℃时达到最大值,但在900℃以上有所减少。654SMO中有8种析出相,包括σ相、Cr2N、μ相、χ相、Laves相、M23C6、M6C和M3C,其中σ相和Cr2N为主要析出相。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.30
自引率
0.00%
发文量
2879
审稿时长
3.0 months
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