To improve the properties of the casting martensite stainless steels, the aging heat-treatment at different temperature was done.
为提高铸造马氏体不锈钢的性能，对其进行了不同温度下的时效处理。
2
The yield strength, yield ratio increase with the increase of annealing temperature, due to the impact of non-martensite and the decrease of movable dislocation density.
受非马氏体组织的影响及可动位错密度降低的作用，屈服强度、屈强比随退火温度升高而升高。
3
The results show that, the presence of twinning martensite should be attributed to alloying elements addition in steel, and the austenitizing temperature, and cooling rate are not important factors.