金属热处理 ›› 2020, Vol. 45 ›› Issue (6): 51-54.DOI: 10.13251/j.issn.0254-6051.2020.06.011

• 工艺研究 • 上一篇    下一篇

固溶温度对高温合金GH3600微观组织与硬度的影响

李小兵, 李伟   

  1. 江苏科技大学张家港校区 冶金与材料工程学院, 江苏 张家港 215600
  • 收稿日期:2019-11-11 出版日期:2020-06-25 发布日期:2020-09-02
  • 作者简介:李小兵(1986—),男,讲师,博士,主要研究方向为金属材料加工与组织性能控制,E-mail:lxbing2009@126.com
  • 基金资助:
    江苏省高校自然科学研究面上项目(16KJB430012)

Effect of solution temperature on microstructure and hardness of GH3600 superalloy

Li Xiaobing, Li Wei   

  1. School of Metallurgical and Materials Engineering, Jiangsu University of Science and Technology, Zhangjiagang Jiangsu 215600, China
  • Received:2019-11-11 Online:2020-06-25 Published:2020-09-02

摘要: 采用光学显微镜、扫描电镜、X射线衍射仪与硬度计等研究了固溶处理温度对镍基高温合金GH3600微观组织与硬度的影响。结果表明:随着固溶温度的升高,合金中的第二相逐渐溶解,基体相的晶粒尺寸快速长大,合金的硬度值呈下降趋势。固溶温度为1010 ℃时,合金获得均匀的晶粒组织,并形成孪晶结构,硬度值达到152.6 HV10。

关键词: 镍基高温合金, 固溶处理, 析出相, 晶粒尺寸

Abstract: Effect of solution treatment temperature on the microstructure and hardness of Ni-based superalloy GH3600 were investigated by optical microscopy, scanning electron microscopy, X-ray diffractometer and hardness tester. The results show that with the solution treatment temperature increasing, the secondary phase in the alloy dissolves gradually, the grain size of the matrix phase grows rapidly, and the hardness of the alloy decreases. When the solution treatment temperature is 1010 ℃, the uniform grain structure is obtained, the twin structure is formed, and the hardness value reaches 152.6 HV10.

Key words: nickel-based superalloy, solution treatment, precipitation phase, grain size

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