镍基高温合金GH4169的晶粒长大行为

doi:10.13251/j.issn.0254-6051.2026.01.005

金属热处理 ›› 2026, Vol. 51 ›› Issue (1): 35-39.DOI: 10.13251/j.issn.0254-6051.2026.01.005

镍基高温合金GH4169的晶粒长大行为

董国磊¹, 齐强强¹, 朱雪彤¹, 李震龙¹, 焦永星¹, 陈慧琴¹, 李荣斌²

1.太原科技大学材料科学与工程学院, 山西太原 030024;
2.上海电机学院材料学院, 上海 201306

收稿日期:2025-07-28 修回日期:2025-10-29 出版日期:2026-01-25 发布日期:2026-01-27
通讯作者: 焦永星(1988—),副教授,博士,E-mail:jiaoyxtust@163.com
作者简介:董国磊(1998—),男,硕士研究生,主要研究方向为大型锻件制造理论与技术,E-mail:18735267156@163.com。
基金资助:
山西省基础研究计划青年科学研究项目(202203021222191);山西省科技合作交流专项(202204041101043);上海大件热制造工程技术研究中心项目(18DZ2253400)

Grain growth behavior of nickel based superalloy GH4169

Dong Guolei¹, Qi Qiangqiang¹, Zhu Xuetong¹, Li Zhenlong¹, Jiao Yongxing¹, Chen Huiqin¹, Li Rongbin²

1. School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China;
2. School of Materials Science, Shanghai Dianji University, Shanghai 201306, China

Received:2025-07-28 Revised:2025-10-29 Online:2026-01-25 Published:2026-01-27

摘要/Abstract

摘要： 采用箱式电阻炉对高温合金GH4169进行不同加热温度(950~1100 ℃)和不同保温时间(10~240 min)的热处理试验,研究其晶粒长大规律。结果表明:随着加热温度的升高和保温时间的延长,GH4169合金的晶粒尺寸随之增大。保温时间为60 min时,加热温度为950~1000 ℃时,晶粒尺寸由28.32 μm长大到38.01 μm;加热温度为1000~1100 ℃时,晶粒尺寸由38.01 μm长大到108.01 μm。基于Anelli模型建立了GH4169合金在1000~1100 ℃下保温10~120 min的晶粒长大动力学模型,得出晶粒长大系数为0.24,晶粒长大激活能为151.497 kJ/mol,且模型计算值与试验值吻合度较好,相关系数为0.976。结合GH4169合金的显微组织及晶粒长大模型,当加热温度低于1000 ℃时,合金的晶粒尺寸长大速度较缓慢,当加热温度高于1000 ℃时,合金的晶粒尺寸长大速度较快。

关键词: GH4169高温合金, 晶粒长大, 晶粒长大模型, 晶粒尺寸, 热处理

Abstract: Grain growth behavior of superalloy GH4169 was studied through heat treatment experiments at different heating temperatures (950-1100 ℃) and different holding time (10-240 min) by using box-type resistance furnace. The results show that with the increase of heating temperature and the extension of holding time, the grain size of the superalloy GH4169 grows accordingly. When the holding time is 60 min, the grain size grows from 28.32 μm to 38.01 μm when the heating temperature increases in the range of 950-1000 ℃ and grows from 38.01 μm to 108.01 μm when the heating temperature increases in the range of 1000-1100 ℃. Based on the Anelli model, the grain growth kinetic model of the GH4169 alloy at 1000-1100 ℃ for 10-120 min is established, which can be obtained through that is the grain growth coefficient is 0.24, and the grain growth activation energy is 151.497 kJ/mol, meanwhile, the correlation coefficient is 0.976, showing the calculated values of the model are in good agreement with the experimental values. Based on the microstructure and grain growth model of the GH4169 alloy, it can be concluded that when the heating temperature is below 1000 ℃, the grain size of the alloy grows at a slower rate, and when the heating temperature exceeds 1000 ℃, the grain size of the alloy grows at a faster rate.

Key words: superalloy GH4169, grain growth, grain growth model, grain size, heat treatment

中图分类号:

TG113

董国磊, 齐强强, 朱雪彤, 李震龙, 焦永星, 陈慧琴, 李荣斌. 镍基高温合金GH4169的晶粒长大行为[J]. 金属热处理, 2026, 51(1): 35-39.

Dong Guolei, Qi Qiangqiang, Zhu Xuetong, Li Zhenlong, Jiao Yongxing, Chen Huiqin, Li Rongbin. Grain growth behavior of nickel based superalloy GH4169[J]. Heat Treatment of Metals, 2026, 51(1): 35-39.

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镍基高温合金GH4169的晶粒长大行为

Grain growth behavior of nickel based superalloy GH4169

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