试验结果表明，焊后对焊缝金属进行不同热处理时，其韧性均有不同程度的影响。
The results show that the different heat treatment affects the toughness of the weld metal differently.
通过焊前预热、层间温度控制及焊后热处理等手段获得了满足质量要求的焊缝。
With the methods of the pre-heating before welding, controlling the interlaminar temperature and the heat treatment after welding, the welds that satisfy the quality specifications can be available.
研究308L焊缝经过焊后热处理其蠕变-疲劳的性质。
The creep-fatigue properties of 308L ste el weld after post-weld heat treatments (PWHT) were investigated.
结果表明，经过焊后热处理后焊缝出现严重的低温脆化，其冲击试样的断口为解理状形貌；
The results show that after post-weld heat treatment(PWHT), the welds of X80 steel seriously embrittle, and the fracture morphology of impact specimens is cleavage.
结果表明，经过焊后热处理后焊缝出现严重的低温脆化，其冲击试样的断口为解理状形貌；
The results show that after post-weld heat treatment(PWHT), the welds of X80 steel seriously embrittle, and the fracture morphology of impact specimens is cleavage.
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