金属热处理 ›› 2020, Vol. 45 ›› Issue (1): 96-100.DOI: 10.13251/j.issn.0254-6051.2020.01.019

• 工艺研究 • 上一篇    下一篇

时效温度对GH2132合金组织与力学性能的影响

冯光勇1, 宫晓春2   

  1. 1. 天津中德应用技术大学 机械工程学院, 天津 300350;
    2. 西安航天华阳机电装备有限公司, 陕西 西安 721000
  • 收稿日期:2019-06-28 出版日期:2020-01-25 发布日期:2020-04-03
  • 作者简介:冯光勇(1982—),男,高级工程师,硕士,主要研究方向:金属材料的热处理工艺及表面处理工艺,联系电话:18722626581,E-mail:rp1356@163.com。
  • 基金资助:
    天津市企业科技特派员项目(18JCTPJC50800)

Effect of aging temperature on microstructure and mechanical properties of GH2132 alloy

Feng Guangyong1, Gong Xiaochun2   

  1. 1. School of Mechanical Engineering, Tianjin Sino-German University of Applied Sciences, Tianjin 300350, China;
    2. Xi'an Aerospace-Huayang Mechanical & Electrical Equipment Co., Ltd., Xi'an Shaanxi 721000, China
  • Received:2019-06-28 Online:2020-01-25 Published:2020-04-03

摘要: 采用光学显微镜、扫描电镜、微机控制电子万能试验机等仪器研究了620、650、680、720、750、780 ℃单级时效和720 ℃+650 ℃双级时效对GH2132合金显微组织及力学性能的影响。结果表明:双级时效的抗拉强度和剪切强度高于单级时效的抗拉强度和剪切强度,抗拉强度达到1130 MPa,剪切强度达到720 MPa。且在620~780 ℃的温度范围内进行单级时效时,随着时效温度的提高,合金的抗拉强度和剪切强度呈现先升高后降低的趋势,在720 ℃时抗拉强度达到最大值1065 MPa,剪切强度达到最大值685 MPa。

关键词: GH2132合金, 时效, 力学性能, 显微组织

Abstract: Effects of single-stage aging at 620, 650,680, 720, 750, 780 ℃ and two-stage aging at 720 ℃+650 ℃ on the microstructure and mechanical properties of GH2132 alloy were studied by means of optical microscope and microcomputer controlled electronic universal testing machine. The results show that the tensile strength and shear strength of the alloy double aging reach 1130 MPa and 720 MPa respectively, both are higher than that of the single aging. In addition, for single-stage aging within the temperature range of 620-780 ℃, with the increase of aging temperature, the tensile strength and shear strength of the alloy show a trend of first increasing and then decreasing, reach 1065 MPa and 685 MPa respectively at 720 ℃.

Key words: GH2132 alloy, aging, mechanical properties, microstructure

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