新型二次硬化钢25CrMo3NiTiVNbZr的高温力学性能和强化机理

李若浩, 胡霄雨, 王中成, 李浩, 杨勇, 徐乐, 梁恩溥, 何肖飞

High-temperature Mechanical Properties and Strengthening Mechanism of New Secondary Hardened Steel 25CrMo3NiTiVNbZr

LI Ruohao, HU Xiaoyu, WANG Zhongcheng, LI Hao, YANG Yong, XU Le, LIANG Enpu, HE Xiaofei

表2 700℃拉伸前后试验钢中M3C相的析出量

Tbale 2M3C phase precipitation before and after deformation at 700oC

The mass fraction of the elements in the M3C / % Fe Cr Mo Ni V C* Σ P0 steel Before 0.393 0.201 0.237 0.006 - 0.054 0.891 After 0.208 0.145 0.158 0.0046 - 0.033 0.549 P1 steel Before 0.207 0.046 0.141 0.0076 0.015 0.026 0.443 After 0.0784 0.019 0.0577 0.0045 0.0074 0.0104 0.177