胡小强,罗兴宏,李殿中

• 1:中国科学院金属研究所
• 2:中国科学院金属研究所
• 3:中国科学院金属研究所 辽宁沈阳110016
• 4:辽宁沈阳110016

摘要(Abstract)：

本文研究了G-X12CrMoWVNbN10 11钢在700℃长时间等温处理过程中的组织演变。通过DTA曲线,分析得到该钢种在加热和冷却过程中的各相转变温度。采用光学显微镜、扫描电镜和能谱分析,研究不同时间等温处理后的组织。结果表明:M_3C型碳化物优先在原奥氏体晶界附近析出,此后,碳化物聚集长大导致出现两相区。随着等温处理时间的增加,两相区的转变量近似以S形规律增加,基体硬度则线性降低。

关键词(KeyWords)： 超超临界钢;改进型9Cr1Mo钢;组织演变;碳化物;等温处理

Abstract:

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基金项目(Foundation):

作者(Author): 胡小强,罗兴宏,李殿中

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