The aging treatment of 15-5ph stainless parts was carried out, the influence rule of aging process on measure stability and hardness was found. It provides basis for working out the proper process.

对15 - 5 PH不锈钢制零件进行时效处理，找到时效工艺对尺寸稳定性、硬度的影响规律，为制定合理的机加工艺路线提供依据。

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The high angular equiaxed grains of Austenite stainless steel were obtained by muti-passes pressed, and the statistical grain size obey the rule of normal school.

奥氏体不锈钢经多道次热挤压后，能得到大角度等轴晶，且晶粒尺寸呈正态分布；

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