Study on regulation of carbide precipitation behavior in GH4141 superalloy

GUO Jiarong; MA Hechuan; XIAO Dongping; ZHOU Yang; ZHANG Hongkai

doi:10.7513/j.issn.1004-7638.2026.04.016

Volume 47 Issue 4

Aug. 2026

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GUO Jiarong, MA Hechuan, XIAO Dongping, ZHOU Yang, ZHANG Hongkai. Study on regulation of carbide precipitation behavior in GH4141 superalloy[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(4): 135-142. doi: 10.7513/j.issn.1004-7638.2026.04.016

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GUO Jiarong, MA Hechuan, XIAO Dongping, ZHOU Yang, ZHANG Hongkai. Study on regulation of carbide precipitation behavior in GH4141 superalloy[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(4): 135-142. doi: 10.7513/j.issn.1004-7638.2026.04.016

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Study on regulation of carbide precipitation behavior in GH4141 superalloy

doi: 10.7513/j.issn.1004-7638.2026.04.016

1.
State Key Laboratory of Manufacturing Systems Engineering, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, ‌Shaanxi, China
2.
Chengdu Advanced Metal Materials Industrial Technology Research Institute Co., Ltd., Chengdu 610300, Sichuan, China
3.
Pangang Group Co., Ltd., Panzhihua 617000, Sichuan, China

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Received Date: 2025-10-31
Accepted Date: 2026-04-27
Rev Recd Date: 2026-03-05
Publish Date: 2026-08-31

Abstract

Abstract

In this study the effects of heat treatment parameters including solution treatment temperatures (1 080-1 190℃), aging temperatures (850-950℃), and aging durations (20-60 min) on the carbide precipitation behavior and the regulation of grain boundary precipitation characteristics in GH4141 superalloy had been investigated. The results indicate that solution temperature is the key factor influencing the carbide precipitation location. Solution treatment at 1 120 ℃ effectively promotes grain boundary segregation of alloy elements, inducing continuous precipitation of MC and M₆C carbides along grain boundaries. In contrast, solution treatment at 1 190 ℃ results in dispersed distribution of carbides within grains and at grain boundaries. During the aging process, aging at 900 ℃ facilitates the formation of stable carbide precipitation characteristics along grain boundaries; however, aging at 900 ℃ for more than 40 min induces synergistic segregation of Mo and Cr elements and the precipitation of coarse MC carbides. By combining the results from precipitation characteristic analysis and mechanical property testing, it is found out that the optimal heat treatment process is determined to be 1 120 ℃ solution (0.5 h) combined with 900 ℃ aging (1 h). This process enables tailoring of MC and M₆C carbides along grain boundaries, it is suitable for alloys with a wide range of grain sizes, and achieves the high strength, providing an important theoretical basis for the manufacturing of high-performance GH4141 superalloy.
- GH4141 superalloy,
- carbide precipitation,
- hot working,
- microstructure,
- mechanical properties

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References(27)

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