At the environment medium, the tubeplate joint welds of titanium reboiler were constantly effected by the alternationstress, welds cracking was occurred in the end.
在环境介质中，钛制再沸器管板接头焊缝长期受交变应力的作用，导致管板焊缝开裂。
2
Oversize recessing or improper position results in sharp stress concentration near the recessing to be a new higher stress zone, which may lead to the alternation of failure mode of joints.