GH4169合金固溶时效行为及工艺参数优化

doi:10.13251/j.issn.0254-6051.2025.12.017

金属热处理 ›› 2025, Vol. 50 ›› Issue (12): 111-116.DOI: 10.13251/j.issn.0254-6051.2025.12.017

GH4169合金固溶时效行为及工艺参数优化

李震龙^1,2, 朱雪彤^1,2, 徐渊斐^2,3, 董国磊^1,2, 焦永星^1,2, 陈慧琴^1,2, 李荣斌⁴

1.太原科技大学材料科学与工程学院, 山西太原 030024;
2.山西省法兰基础件成形技术创新中心, 山西太原 030024;
3.山西管家营法兰锻造股份有限公司, 山西忻州 035400;
4.上海电机学院材料学院, 上海 201306

收稿日期:2025-07-25 修回日期:2025-10-11 发布日期:2026-01-06
通讯作者: 焦永星,副教授,博士,E-mail:jiaoyxtust@163.com
作者简介:李震龙(2000—),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:1399810117@qq.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);优秀来晋博士科研启动基金(20222068)

Solid solution and aging behavior of GH4169 alloy and process parameter optimization

Li Zhenlong^1,2, Zhu Xuetong^1,2, Xu Yuanfei^2,3, Dong Guolei^1,2, Jiao Yongxing^1,2, Chen Huiqin^1,2, Li Rongbin⁴

1. School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China;
2. Shanxi Province Flange Basic Component Forming Technology Innovation Center, Taiyuan Shanxi 030024, China;
3. Shanxi Guanjia Camp Flange Forging Co., Ltd., Xinzhou Shanxi 035400, China;
4. School of Materials Science, Shanghai Dianji University, Shanghai 201306, China

Received:2025-07-25 Revised:2025-10-11 Published:2026-01-06

摘要/Abstract

摘要： 为研究GH4169合金的固溶时效行为并优化其工艺参数,研究了GH4169合金在950~1050 ℃高温60~120 min长时间固溶及在720~810 ℃高温3~9 h长时间时效后的微观组织,并确定其合适的固溶时效工艺参数。结果表明,随固溶温度的增加与保温时间的延长,晶粒尺寸增加且第二相的溶解程度也随之增加。1000 ℃保温90 min的固溶条件下,GH4169合金的晶粒尺寸均匀,析出相基本溶解于基体达到饱和固溶状态。时效温度和保温时间对晶粒尺寸影响不大,但对第二相的析出有较大影响,当750 ℃保温7 h 后,析出相以颗粒状弥散分布于晶内,为较佳的时效工艺。

关键词: GH4169合金, 固溶处理, 时效处理, 微观组织

Abstract: To investigate the solid solution and aging behavior of GH4169 alloy and optimize its process parameters, the microstructure of the GH4169 alloy after long-term solution treatment at high temperature of 950-1050 ℃ for 60-120 min and long-term aging at high temperature of 720-810 ℃ for 3-9 h was investigated, and the appropriate solid solution and aging process parameters were determined. The results show that with the increase of solution treating temperature and holding time, the grain size increases and the dissolution degree of the second phase also increases. Under the solid solution condition of holding at 1000 ℃ for 90 min, the grain size of the GH4169 alloy is uniform, and the precipitated phases are basically dissolved in the matrix to reach a saturated solid solution state. The aging temperature and holding time have a little effect on the grain size, but have a significant effect on the precipitation of second phase. When held at 750 ℃ for 7 h, the precipitated phases are dispersed in the form of particles inside the grains, which is a better aging process.

Key words: GH4169 alloy, solution treatment, aging treatment, microstructure

中图分类号:

TG156.1

李震龙, 朱雪彤, 徐渊斐, 董国磊, 焦永星, 陈慧琴, 李荣斌. GH4169合金固溶时效行为及工艺参数优化[J]. 金属热处理, 2025, 50(12): 111-116.

Li Zhenlong, Zhu Xuetong, Xu Yuanfei, Dong Guolei, Jiao Yongxing, Chen Huiqin, Li Rongbin. Solid solution and aging behavior of GH4169 alloy and process parameter optimization[J]. Heat Treatment of Metals, 2025, 50(12): 111-116.

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GH4169合金固溶时效行为及工艺参数优化

Solid solution and aging behavior of GH4169 alloy and process parameter optimization

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