热处理工艺对Inconel 617合金管组织性能的影响

doi:10.13251/j.issn.0254-6051.2022.02.031

金属热处理 ›› 2022, Vol. 47 ›› Issue (2): 173-177.DOI: 10.13251/j.issn.0254-6051.2022.02.031

热处理工艺对Inconel 617合金管组织性能的影响

刘昱君¹, 程晓农¹, 罗锐¹, 高佩^1,2

1.江苏大学材料科学与工程学院, 江苏镇江 212013;
2.江苏银环精密钢管有限公司, 江苏宜兴 214200

收稿日期:2021-09-29 修回日期:2021-12-19 出版日期:2022-02-25 发布日期:2022-04-01
通讯作者: 程晓农,教授,博导,E-mail:Chengxiaonong@hotmail.com
作者简介:刘昱君(1996—),男,硕士研究生,主要研究方向为核电用镍基高温合金相关组织性能及加工工艺,E-mail:1124929538@qq.com。
基金资助:
轧制技术及连轧自动化国家重点实验室(东北大学)开放课题基金(2020RALKFKT017);中国博士后科学基金(2019M661738);江苏省高等学校自然科学研究面上项目(19KJB43001)

Effect of heat treatment process on microstructure and properties of Inconel 617 alloy tube

Liu Yujun¹, Cheng Xiaonong¹, Luo Rui¹, Gao Pei^1,2

1. School of Materials Science and Engineering, Jiangsu University, Zhenjiang Jiangsu 212013, China;
2. Jiangsu Yinhuan Precision Steel Tube Co., Ltd., Yixing Jiangsu 214200, China

Received:2021-09-29 Revised:2021-12-19 Online:2022-02-25 Published:2022-04-01

摘要/Abstract

摘要： 利用光镜(OM)、硬度测试、室温拉伸试验等方法,研究了Inconel 617合金管的微观组织和力学性能在不同热处理工艺参数下的变化趋势。通过光镜对合金组织进行表征,分析了温度为1120～1200 ℃,保温时间为10、30 min时合金晶粒尺寸的变化规律,同时建立了晶粒尺寸长大的动力学模型。结果表明,随着温度的不断提高,晶粒的平均尺寸不断增大,并且晶粒内部逐渐出现较多的孪晶。同时,随着热处理温度的不断提高,合金的硬度变化趋势与抗拉强度变化趋势相同,二者都随着温度的升高,呈现下降的趋势;合金的伸长率随着温度的升高不断增加。Inconel 617合金的晶界迁移表观激活能Q为651.82 kJ/mol。

关键词: 热处理, Inconel 617合金, 显微组织, 宏观硬度, 抗拉强度, 伸长率

Abstract: In order to explore the heat treatment process of the alloy tube, the effects of different heat treatment parameters on microstructure and mechanical properties of Inconel 617 alloy tube were studied by means of optical microscope (OM), hardness and tensile test at room temperature, etc. The alloy was characterized by optical microscope, and the variation rule of the grain size of the alloy was analyzed when the temperature between 1120-1200 ℃ and the holding time was 10 and 30 min, respectively, and the dynamic model of grain size growth was established. The results show that the average grain size increases with the increase of temperature, and there are more twins in the grain. At the same time, with the continuous increase of heat treatment temperature, the change trend of hardness and tensile strength of the alloy is the same, both of them show a decreasing trend with the increase of temperature. The elongation of the alloy increases with the increase of temperature. The apparent activation energy of grain boundary migration of the Inconel 617 alloy is 651.82 kJ/mol.

Key words: heat treatment, Inconel 617 alloy, microstructure, macrohardness, tensile strength, elongation

中图分类号:

TG166.7

刘昱君, 程晓农, 罗锐, 高佩. 热处理工艺对Inconel 617合金管组织性能的影响[J]. 金属热处理, 2022, 47(2): 173-177.

Liu Yujun, Cheng Xiaonong, Luo Rui, Gao Pei. Effect of heat treatment process on microstructure and properties of Inconel 617 alloy tube[J]. Heat Treatment of Metals, 2022, 47(2): 173-177.

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热处理工艺对Inconel 617合金管组织性能的影响

Effect of heat treatment process on microstructure and properties of Inconel 617 alloy tube

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