Effects of Aging Temperature on Microstructure and Mechanical Properties of PH13-8Mo Stainless Steel
摘 要
将PH13-8Mo不锈钢在930 ℃固溶1 h后,再在480,510,540,565,590,620 ℃下时效4 h,研究了时效温度对试验钢显微组织和力学性能的影响。结果表明:试验钢在510 ℃时效后具有最高的硬度和强度,并保持了足够的冲击韧性,具有较好的综合力学性能;在510~620 ℃时效时,随着时效温度升高,硬度和强度下降,冲击韧性升高;试验钢在480 ℃时效后开始析出金属间化合物Ni3Al,该析出相随着时效温度升高逐渐长大和增多。
Abstract
Solid solution treatment at 930 ℃ for 1 h and following by aging at 480,510,540,565,590,620 ℃ for 4 h were carried out to study the effects of aging temperature on microstructure and mechanical properties of PH13-8Mo stainless steel. The results show that, PH13-8Mo stainless steel had better comprehensive mechanical properties, such as the highest hardness and strength and enough impact toughness, after aging at 510 ℃. When aging at 510-620 ℃,the hardness and strength decreased and impact toughness increased with the increase of aging temperature. PH13-8Mo stainless steel began to precipitate the intermetallic compound Ni3Al when aging at 480 ℃, and the precipitates gradually grew up and increased in number gradually with the increase of aging temperature.
中图分类号 TB31
所属栏目 新材料新工艺
基金项目 上海市科委军民两用项目(11DZ1110100)
收稿日期 2013/9/23
修改稿日期 2014/8/1
网络出版日期
作者单位点击查看
备注张湛(1985-),男,上海人,助理工程师,学士。
引用该论文: ZHANG Zhan,XUE Chun,HUANG Chun-bo,CHEN You-guang,WANG Ling-qi,LU Chao. Effects of Aging Temperature on Microstructure and Mechanical Properties of PH13-8Mo Stainless Steel[J]. Materials for mechancial engineering, 2014, 38(11): 72~75
张湛,薛春,黄春波,陈有光,王玲奇,陆超. 时效温度对PH13-8Mo不锈钢组织和力学性能的影响[J]. 机械工程材料, 2014, 38(11): 72~75
被引情况:
【1】王冬颖,关 锰,陈 炜,程从前,李 倩,赵 杰,曹志远, "基于V型缺口试样冲击性能确定1Cr17Ni2不锈钢的热处理工艺",机械工程材料 40, 34-38(2016)
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