金属热处理 ›› 2024, Vol. 49 ›› Issue (1): 103-107.DOI: 10.13251/j.issn.0254-6051.2024.01.015

• 材料研究 • 上一篇    下一篇

超超临界转子用Inconel 617合金的热塑性

李红梅1, 白亚冠1, 郭伟1, 聂义宏2   

  1. 1. 天津重型装备工程研究有限公司, 天津 300457;
    2. 中国第一重型机械股份公司, 黑龙江 齐齐哈尔 161042
  • 收稿日期:2023-03-08 修回日期:2023-11-17 发布日期:2024-02-29
  • 通讯作者: 白亚冠,高级工程师,E-mail:302baiyaguan@163.com
  • 作者简介:李红梅(1986—),女,高级工程师,硕士,主要研究方向为镍基高温合金材料的开发及制造工艺,E-mail:hmli2012@126.com。
  • 基金资助:
    工信部超超临界火电机组材料生产应用示范平台项目(TC210H022);科技部超超临界汽轮机转子锻件研制项目(2021YFB3704102)

Hot ductility of Inconel 617 alloy for A-USC turbine rotor application

Li Hongmei1, Bai Yaguan1,Guo Wei1, Nie Yihong2   

  1. 1. Tianjin Heavy Industries Research & Development Co., Ltd., Tianjin 300457, China;
    2. China First Heavy Industries, Qiqihar Heilongjiang 161042, China
  • Received:2023-03-08 Revised:2023-11-17 Published:2024-02-29

摘要: 研究了不同温度对Inconel 617合金铸锭高温拉伸热塑性的影响。结果表明,Inconel 617合金在900 ℃以上有良好的热塑性,拉伸断口有明显的颈缩,断面收缩率均在90%以上。随拉伸温度的升高,颈缩越来越明显,断口韧窝变深,热塑性越来越好。拉伸时发生了局部动态再结晶,随温度升高,再结晶变得充分,高于1200 ℃拉伸时晶粒快速长大,且断口出现熔融现象。

关键词: IN617合金, 热塑性, 动态再结晶

Abstract: Effect of different temperatures on high temperature tensile thermoplasticity of Inconel 617 alloy ingot was investigated. The results show that the Inconel 617 alloy has good thermoplasticity above 900 ℃, in which conditions the tensile fracture has obvious necking and the percentage reduction of area is more than 90%. With the increase of tensile temperature, the necking becomes more obvious, the dimples become more deeper, and the plasticity becomes more better. Dynamic recrystallization occurs locally during the tensile process. The higher the temperature, the more complete the recrystallization. The grains grow rapidly above 1200 ℃, and melting occurs at the fracture.

Key words: Inconel 617 alloy, hot ductility, dynamic recrystallization

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