Effect of Solution Treatment on the Austenite Grain Growth of GH3128 Alloy
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摘要: 研究了固溶温度和保温时间对GH3128合金奥氏体晶粒长大的影响。结果表明：随着固溶温度的升高和保温时间的延长，奥氏体晶粒尺寸逐渐增大；与保温时间相比，加热温度对晶粒尺寸的影响更显著；当固溶温度≥1 180℃时，随着温度的升高或保温时间的延长奥氏体晶粒长大速率明显加快，当固溶温度<1 180℃时，保温时间对奥氏体晶粒的长大影响较小；通过线性回归分析建立了GH3128合金在不同固溶温度和保温时间下的晶粒长大模型。Abstract: In this paper,the effect of solution temperature and holding time on austenite grain growth of GH3128 alloy was studied.The results show that,with the increase of solution temperature and holding time,the austenite grain size of the alloy increases gradually.Compared with the effect of holding time,solution temperature has greater influence on the austenite grain growth.When the solution temperature is higher than 1 180℃,the austenite grain growth rate increases significantly with the increase of solution temperature or the prolongation of holding time.When the solution temperature is lower than 1 180℃,holding time has little influence on the austenite grain growth.Finally,the grain growth model of GH3128 alloy at different solution temperature and holding time has been established by linear regression analysis.
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Key words:
- GH3128 alloy /
- austenite /
- grain growth /
- solution temperature /
- holding time /
- grain growth model
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