金属热处理 ›› 2023, Vol. 48 ›› Issue (8): 52-57.DOI: 10.13251/j.issn.0254-6051.2023.08.009

• 工艺研究 • 上一篇    下一篇

Inconel625合金的热变形行为及热加工图

张继舜1, 廖振洋2, 杨钢1, 唐正焮1, 陈其为1, 孔荣宗2   

  1. 1.钢铁研究总院有限公司 特殊钢研究院,北京 100081;
    2.中国空气动力研究与发展中心 超高速空气动力研究所,四川 绵阳 621000
  • 收稿日期:2023-03-14 修回日期:2023-06-15 出版日期:2023-08-25 发布日期:2023-10-10
  • 通讯作者: 廖振洋,高级工程师,硕士,E-mail: zhenyang_liao@163.com
  • 作者简介:张继舜(1994—),男,博士研究生,主要研究方向为高温合金组织与性能,E-mail: 542391486@qq.com。
  • 基金资助:
    国家重点研发计划(2021YFB3704102)

Hot deformation behavior and hot processing map of Inconel625 alloy

Zhang Jishun1, Liao Zhenyang2, Yang Gang1, Tang Zhengxin1, Chen Qiwei1, Kong Rongzong2   

  1. 1. Research Institute of Special Steels, Central Iron and Steel Research Institute Company Limited, Beijing 100081, China;
    2. Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China
  • Received:2023-03-14 Revised:2023-06-15 Online:2023-08-25 Published:2023-10-10

摘要: 采用Gleeble-3800热模拟试验机开展了Inconel625合金变形温度为950~1200 ℃、应变速率为0.001~10 s-1的热压缩试验,分析了其热变形行为和不同变形条件下的微观组织演化,构建了Inconel625合金的热加工图。结果表明,Inconel625合金的流变应力随应变速率增加而升高,随变形温度升高而降低;变形温度越高、压缩应变速率越低,越容易发生动态再结晶。Inconel625合金最佳热加工工艺参数范围为变形温度1010~1050 ℃,应变速率0.01~0.13 s-1

关键词: Inconel625合金, 热变形, 再结晶, 热加工图

Abstract: Thermal compression test of Inconel625 alloy with deformation temperature of 950-1200 ℃ and strain rate of 0.001-10 s-1 was carried out by Gleeble-3800 thermal simulation testing machine. The hot deformation behavior and microstructure evolution under different deformation conditions were analyzed. The hot processing map of the Inconel625 alloy was constructed. The results show that the flow stress of the Inconel625 alloy increases with the increase of strain rate and the decrease of deformation temperature. The higher the deformation temperature and the lower the compression strain rate, the more prone to dynamic recrystallization. The optimum hot processing parameters of the Inconel625 alloy are as follows: deformation temperature of 1010-1050 ℃, strain rate of 0.01-0.13 s-1.

Key words: Inconel625 alloy, hot deformation, recrystallization, hot processing map

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