1.Powder Matallurgy Department, Advanced Technology and Materials Co Ltd, Beijing 100081, China; 2.Institutefor Structure Materials ,Central Iron and Steel Research Institute, Beijing 100081, China
Abstract：The effect of heat treatment on structure and mechanical properties of 1Cr16Ni3CuMoWV was studied. By solid solution at 1070 ℃ for 1h,oil cooling, -192 ℃ for 2h and aging at 500 ℃ for 2h,the Rm、ReL and Aku of steel are 1570 MPa、1165 MPa and 87 J each other. because εCu precipitates along dislocation lines, strength of steel is improved.
