时效处理对15-5PH沉淀硬化马氏体不锈钢组织和力学性能的影响

特殊钢 ›› 2012, Vol. 33 ›› Issue (5): 47-48.

时效处理对15-5PH沉淀硬化马氏体不锈钢组织和力学性能的影响

裴海祥^1,2, 王西涛¹, 王立新², 邢丽娜²

1北京科技大学新金属材料国家重点实验室，北京100083；
2太钢不锈钢股份有限公司技术中心，太原030003

收稿日期:2012-03-09 出版日期:2012-10-01 发布日期:2022-10-10
作者简介:裴海祥(1972-)，男，博士生，高级工程师，钢铁组织分析。

Effect of Ageing Treatment on Structure and Mechanical Properties of Precipitation-Hardening Martensite Stainless Steel 15-5PH

Pei Haixiang^1,2, Wang Xitao¹ , Wang Lixin², Xing Lina²

1 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology, Beijing 100083 ；
2 Technology Center, Stainless Steel, Co Ltd, Taiyuan Iron and Steel Co, Taiyuan 030003

Received:2012-03-09 Published:2012-10-01 Online:2022-10-10

摘要/Abstract

摘要： 研究了1000℃和1040℃30min水冷固溶480～620℃4 h时效对15-5PH钢(/%:0.065C、0.46Si、0.58Mn、0.022P、0.004S、14.77Cr、5.19Ni、2.91 Cu、0.22Nb)组织和力学性能的影响。结果表明,该钢在480℃4 h时效后,开始析出富铜相和碳化物Nb(C,N),随时效温度升高,部分析出相长大;550℃时效15-5PH钢具有最佳综合力学性能:屈服强度R_p0.2530～625 MPa,抗拉强度R_m1050～1070 MPa,冲击功值a_kv113～115 J/cm²。

Abstract: Effect of ageing treatment at 480 ~ 620 °C for 4 h on structure and mechanical properties of steel 15-5PH (/% ：0. 065C, 0. 46Si, 0. 58Mn, 0. 022P、0. 004S, 14. 77Cr, 5. 19Ni, 2. 91 Cu, 0. 22Nb) solid-solution-treated at 1 000 T and 1 040°C for 30 min water cooling has been studied. Results show that with ageing at 480 °C for 4 h, the copper- rich phases and carbide Nb( C, N) begin to precipitate, and with increasing ageing temperature, partial precipitates coarsen ；with ageing at 550 °C the steel 15-5PH has optimum comprehensive mechanical properties i. e. yield strength R_p0.2, 530 -625 MPa, tensile strength R_m 1 050 ~ 1 070 MPa and impact energy value a_kv 113 〜115 J /cm².

裴海祥, 王西涛, 王立新, 邢丽娜. 时效处理对15-5PH沉淀硬化马氏体不锈钢组织和力学性能的影响[J]. 特殊钢, 2012, 33(5): 47-48.

Pei Haixiang, Wang Xitao , Wang Lixin, Xing Lina. Effect of Ageing Treatment on Structure and Mechanical Properties of Precipitation-Hardening Martensite Stainless Steel 15-5PH[J]. Special Steel, 2012, 33(5): 47-48.