江玉莲,童晋方,冯治国

• 1:贵州大学机械工程学院
• 2:贵州省特色装备及制造技术重点实验室

摘要(Abstract)：

基于A286高温合金抽芯铆钉钉套局部感应加热工艺方法,研究了局部感应退火温度场对退火区组织性能和力学性能的影响,并定性地描述了局部感应退火软化机制。结果表明:A286高温合金钉套退火区的晶粒尺寸随退火温度的升高而增大,其硬度随晶粒尺寸增大而减小;在感应退火过程中,Σ3晶界的数量随温度的升高而先增加后降低,并且有一定数量的Σ9晶界产生;通过感应退火,消除了加工硬化带来的内应力,A286高温合金钉套局部感应退火硬度呈梯度变化的机理是再结晶退火作用的结果。

关键词(KeyWords)： 抽芯铆钉;A286高温合金;组织演变;再结晶退火;硬度

Abstract:

Keywords:

基金项目(Foundation): 贵州省重点科技计划项目(黔科合基础[2020]1Z049)

作者(Author): 江玉莲,童晋方,冯治国

DOI: 10.13289/j.issn.1009-6264.2021-0012

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