摘要
本文综述了Inconel 625合金析出相的析出与演变行为,重点介绍了该合金不同类型析出相包括γ′相、γ″相、δ相、Ni2(Cr,Mo)相以及MC,M6C,M23C6型碳化物和Laves相;阐明不同成形工艺、热处理及高温蠕变过程中析出相的析出与演化行为,论述不同类型的析出相对合金性能的影响;指出Inconel 625合金快速成形及焊接过程中产生裂纹的主要因素,并提出未来重要的发展方向是如何通过选择与控制相析出来进一步提高Inconel 625合金的热强性和热疲劳性能。
Precipitation and evolution behavior of phases in Inconel 625 superalloy were reviewed,and the various types of phases in the alloy were emphatically introduced,including theγ′phase,γ″phase,δphase,Ni 2(Cr,Mo)phase,three types of MC,M6C,M23C6 carbides and Laves phase.The precipitation and evolution behavior of phases in different forming processes,heat treatment and high temperature creep were elucidated.Further,the effects of different types of phases on the properties of the alloys were discussed.The main factors causing cracks during rapid forming and welding in Inconel 625 alloy were pointed out and it was proposed that an important development direction in the future is how to improve the thermal strength and thermal fatigue properties of the Inconel 625 alloy by selecting and controlling the phase precipitation.
作者
高钰璧
丁雨田
孟斌
马元俊
陈建军
许佳玉
GAO Yu-bi;DING Yu-tian;MENG Bin;MA Yuan-jun;CHEN Jian-jun;XU Jia-yu(State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China)
出处
《材料工程》
EI
CAS
CSCD
北大核心
2020年第5期13-22,共10页
Journal of Materials Engineering
基金
国家自然科学基金资助项目(51661019)。
关键词
INCONEL
625合金
析出相
热处理
形变
高温性能
Inconel 625 superalloy
precipitated phase
heat treatment
deformation
high temperature performance
