论文部分内容阅读
试验证明,焊道在坡口中的排列方式,影响焊缝粗、细结晶区的比例,从而改变了焊缝的低温冲击韧性。
The experiment proves that the arrangement of weld bead in the groove affects the ratio of coarse and fine crystalline zone of weld, thus changing the low temperature impact toughness of the weld.