基于JMatPro软件的Inconel 625镍基合金热处理工艺及物理性能探索

doi:10.13251/j.issn.0254-6051.2026.01.006

摘要/Abstract

摘要： 通过JMatPro软件模拟计算,深入剖析了Inconel 625合金在热处理过程中的热力学平衡相组成、相变规律、流变应力状态以及1100 ℃淬火和450~700 ℃回火处理后的力学性能和物性参数。结果表明:Inconel 625镍基合金在室温下的平衡相组成包括γ相、M₆C相、δ相、μ相、M₂₃C₆相以及γ′相,对应的最高相比例分别为69.39%、1.09%、9.12%、15.93%、0.74%和3.73%;在450~700 ℃温度范围内对Inconel 625镍基合金进行1~4 h的回火处理时,随着回火温度的升高以及回火时间的延长,合金的屈服强度、抗拉强度和硬度均呈下降趋势。当回火温度达到600 ℃后,强度和硬度的下降速率逐渐趋于平缓。在25~1400 ℃的温度区间内,Inconel 625镍基合金的弹性模量、剪切模量和密度均随温度升高而逐渐降低,而泊松比则呈现逐渐升高的趋势。

关键词: JMatPro软件, Inconel 625合金, 平衡相, 物理性能

Abstract: Through JMatPro software simulation and calculation, the thermodynamic equilibrium phase composition, phase transformation low, flow stress state, as well as the mechanical properties and physical properties of Inconel 625 alloy after quenching at 1100 ℃ and tempering at 450-700 ℃ were thoroughly analyzed. The results indicate that the equilibrium phase constituents of the Inconel 625 nickel-based alloy at room temperature consist of γ phase, M₆C phase, δ phase, μ phase, M₂₃C₆ phase and γ′ phase, with corresponding maximum phase fractions of 69.39%, 1.09%, 9.12%, 15.93%, 0.74% and 3.73%, respectively. When the alloy is subjected to tempering treatments within the temperature range of 450-700 ℃ for 1-4 h, its yield strength, tensile strength and hardness exhibit a decreasing trend with the increase of tempering temperature and tempering time. When the tempering temperature reaches 600 ℃, the rates of decline in the strength and hardness are gradually stabilized. Furthermore, over the temperature range of 25-1400 ℃, the elastic modulus, shear modulus, and density of the Inconel 625 nickel-based alloy progressively decrease with rising temperature, while the Poisson's ratio shows a gradual increase.

Key words: JMatPro software, Inconel 625 alloy, equilibrium phase, physical properties

中图分类号:

TG146.1

陈捷, 任毅, 王爽, 张帅, 王复越. 基于JMatPro软件的Inconel 625镍基合金热处理工艺及物理性能探索[J]. 金属热处理, 2026, 51(1): 40-46.

Chen Jie, Ren Yi, Wang Shuang, Zhang Shuai, Wang Fuyue. Exploration of heat treatment processes and physical properties of Inconel 625 nickel-based alloy based on JMatPro software[J]. Heat Treatment of Metals, 2026, 51(1): 40-46.

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