新型镍基耐热合金C-HRA-3的热力学计算

doi:10.13251/j.issn.0254-6051.2024.12.043

金属热处理 ›› 2024, Vol. 49 ›› Issue (12): 268-273.DOI: 10.13251/j.issn.0254-6051.2024.12.043

新型镍基耐热合金C-HRA-3的热力学计算

张鹏^1,2, 陈正宗³

1.东北大学材料科学与工程学院, 辽宁沈阳 110819;
2.抚顺特殊钢股份有限公司, 辽宁抚顺 113001;
3.钢铁研究总院有限公司, 北京 100081

收稿日期:2024-06-21 修回日期:2024-10-15 出版日期:2024-12-25 发布日期:2025-02-05
作者简介:张鹏(1984—),男,高级工程师,主要研究方向为高温合金冶炼工艺,E-mail:zhangpeng0126@sina.com
基金资助:
国家新材料生产应用示范平台项目(TC210H022)

Thermodynamic calculation of a novel nickel-based heat-resistant alloy C-HRA-3

Zhang Peng^1,2, Chen Zhengzong³

1. School of Materials Science and Engineering, Northeastern University, Shenyang Liaoning 110819, China;
2. Fushun Special Steel Co. Ltd., Fushun Liaoning 113001, China;
3. Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China

Received:2024-06-21 Revised:2024-10-15 Online:2024-12-25 Published:2025-02-05

摘要/Abstract

摘要： 通过对新型镍基耐热合金C-HRA-3中主元素含量变化进行热力学计算,对其在各温度下可能析出的第二相特征开展分析。结果表明:C-HRA-3合金中主要析出相有γ'和M₂₃C₆,其中700 ℃时γ'相的析出量约3.7wt%,M₂₃C₆相的析出量约1.11wt%。C元素对M₂₃C₆相的析出量、回溶温度以及合金的熔点有显著影响。Co元素对析出相和熔点的影响较小。Mo元素对M₆C相的析出行为有决定性作用。Al和Ti含量的增加会明显增加γ'相的析出量和回溶温度。Nb元素对γ'相的析出量没有影响,但对Nb在γ'相的组成元素占比有显著影响。

关键词: C-HRA-3耐热合金, 热力学计算, 析出相

Abstract: By conducting thermodynamic calculations on the changes in the content of main elements in a novel nickel-based heat-resistant alloy C-HRA-3, the possible characteristics of the second phase that might precipitate at various temperatures were analyzed. The results show that the main precipitated phases in C-HRA-3 alloy are γ' and M₂₃C₆, with a precipitation amount of approximately 3.7wt% for γ' phase and 1.11wt% for M₂₃C₆ phase at 700 ℃. The C element has a significant impact on the precipitation amount, redissolution temperature and melting point of M₂₃C₆ phase in the alloy. The effect of Co element on the precipitation phase and melting point is relatively small. The Mo element plays a decisive role in the precipitation behavior of M₆C phase. The increase in Al and Ti content will significantly increase the precipitation amount and redissolution temperature of the γ'-phase. The Nb element has no effect on the precipitation amount of γ'-phase, but has a significant impact on the proportion of Nb in the composition elements of the γ'-phase.

Key words: C-HRA-3 heat-resistant alloy, thermodynamic calculation, precipitated phase

中图分类号:

TG142.33

张鹏, 陈正宗. 新型镍基耐热合金C-HRA-3的热力学计算[J]. 金属热处理, 2024, 49(12): 268-273.

Zhang Peng, Chen Zhengzong. Thermodynamic calculation of a novel nickel-based heat-resistant alloy C-HRA-3[J]. Heat Treatment of Metals, 2024, 49(12): 268-273.

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新型镍基耐热合金C-HRA-3的热力学计算

Thermodynamic calculation of a novel nickel-based heat-resistant alloy C-HRA-3

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