undegraded

Heat treatment and pre-strain, tensile test of the material and four point bending test have been carried to obtain the mechanical property of the undegraded and degraded material at low temperature.

本文首先通过分析复合脆化处、拉伸和缺口试件四点弯曲的结果，考察较某核压容器钢在脆化处前后的室和低性能。