回火热处理工艺对431不锈钢锻件硬度的影响
金属加工·热加工 蔡杰,郑腾腾,王攀智,杨家典,项春花
摘要:以431不锈钢锻件为研究对象,重点探讨431不锈钢锻件在670 ℃、690 ℃、720℃、740 ℃温度下回火处理后的硬度变化,同时研究了431不锈钢锻件在经历不同回火次数后的硬度性能,并进行了不同热处理状态下的组织机理分析,以探究适宜的回火工艺,满足不同标准(使用条件)的组织与性能要求。
关键词:431不锈钢锻件;回火工艺;硬度性能
Influence of tempering process on hardness of 431 stainless steel forgings
CAI Jie, ZHENG Tengteng, WANG Panzhi, YANG Jiadian, XIANG Chunhua
Guizhou Aviation Technology Development Co., Ltd., Guiyang 550081, Guizhou, China
Abstract: This article takes 431 stainless steel forging as the research object, focusing on the hardness change of 431 stainless steel forgings after tempering at 670℃, 690℃, 720℃and 740℃. Meanwhile, the hardness properties of 431 stainless steel forgings after different tempering times are studied, and the microstructure mechanism analysis is carried out under different heat treatment states, to explore the appropriate tempering process to meet the organization and performance requirements of different standards (conditions of use).
Keywords: 431 stainless steel forging; tempering process; hardness property
1 序言
431不锈钢(相当于国内1Cr17Ni2钢)具有较高的强度和硬度,对氧化性的酸类(一定温度、浓度的硝酸、大部分的有机酸),以及有机酸水溶液都有良好的耐蚀性,其耐蚀性优于410钢和430钢。(剩余2369字)