金属热处理 ›› 2022, Vol. 47 ›› Issue (4): 199-203.DOI: 10.13251/j.issn.0254-6051.2022.04.034

• 工艺研究 • 上一篇    下一篇

热处理和冷变形量对定膨胀合金4J32C线膨胀系数的影响

王方军1,2, 王东哲1,2, 万红1,2, 时瑶1,2, 沈涛1,2   

  1. 1.重庆材料研究院有限公司, 重庆 400707;
    2.国家仪表功能材料工程技术研究中心, 重庆 400707
  • 收稿日期:2022-01-16 修回日期:2022-02-13 出版日期:2022-04-25 发布日期:2022-05-19
  • 作者简介:王方军(1983—),男,高级工程师,硕士,主要研究方向为特种合金,E-mail: cmriwfj@foxmail.com
  • 基金资助:
    重庆市技术创新与应用发展专项(cstc2019jscx-fxydX0011)

Effects of heat treatment and cold deformation on linear expansion coefficient of constant expansion alloy 4J32C

Wang Fangjun1,2, Wang Dongzhe1,2, Wan Hong1,2, Shi Yao1,2, Shen Tao1,2   

  1. 1. Chongqing Materials Research Institute Co., Ltd., Chongqing 400707, China;
    2. National Instrument Functional Materials Engineering, Chongqing 400707, China
  • Received:2022-01-16 Revised:2022-02-13 Online:2022-04-25 Published:2022-05-19

摘要: 研究了不同热处理制度和不同冷变形量对定膨胀合金4J32C线膨胀系数的影响。结果表明,较小的冷变形量不会明显改变合金的线膨胀系数。随着固溶温度的升高,合金的线膨胀系数逐渐降低,在850 ℃时达到最低值,随后继续升高固溶温度,线膨胀系数略有增大。延长稳定化处理时间或提高稳定化处理温度,可适当增加合金的线膨胀系数。

关键词: 定膨胀合金, 4J32C合金, 线膨胀系数, 热处理, 冷变形

Abstract: Effects of different heat treatment systems and cold deformation on linear expansion coefficient of the constant expansion alloy 4J32C were studied. The results show that the linear expansion coefficient of the alloy is not significantly changed by small amount of cold deformation. With the increase of solution treatment temperature, the linear expansion coefficient of the alloy decreases gradually, reaches the lowest value at 850 ℃, and then increases slightly with the increase of solution temperature. The linear expansion coefficient of the alloy can be appropriately increased by prolonging the stabilization treatment time or increasing the stabilization treatment temperature.

Key words: constant expansion alloy, 4J32C alloy, linear expansion coefficient, heat treatment, cold deformation

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