Compared with as-welded specimens with no defects, the fatigue strength has been increased by 32%, and the fatigue life by 2~7 times.
与不含焊接缺陷的焊态试件相比，提高疲劳强度32%，提高疲劳寿命2～7倍；
2
The results show that the weldments made from those metals in as-welded condition are instable in dimension and the rate of dimensional change decreases with time.
结果表明：七种材料的焊件都存在着尺寸不稳定，这种尺寸不稳定变形随时间的变化速率逐渐变缓；
3
Finally, the welding procedure has been proved to be feasible by as-welded appearance checking, magnetic powder inspection, ultrasonic inspection and radiographic inspection.