并利用显微组织变化和电化学理论分析了焊缝试样HAZ的SCC机理。
The mechanism of SCC in HAZ of specimens was analyzed by the microstructure variation and electrochemical theory.
选用水面舰艇用945钢和潜艇用921a钢，研究了不同焊缝外形尺寸对爆炸试验中三缺口试样的中央缺口开裂行为的影响。
Using 945 steel and 921a steel, this article studies the effect of weld profile and size on the cracking behavior of a central notch in a three-notch specimen for an explosion bulge test.
在显微硬度测试中，在焊缝试样横截面上用锥形金刚石压入23或更多的点。
In the microhardness survey test, a pyramid-shaped diamond is impressed into 23 or more points across the face of a weld sample cross section.
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