It is also possible to cool a cylinder enough to actually embrittle the metal, potentially leading to a cylinder failure.
还有可能使钢瓶温度下降到足以使金属变脆的程度，从而可能导致钢瓶故障。
2
Under the experiment's welding condition, WCX355 ultrafine grained steels didn't distinctly embrittle in CGHAZ and didn't soften in tempering zone either.
在试验的焊接条件下，WCX355超细晶钢在热影响粗晶区未有明显脆化，在回火区也未发生软化现象。
3
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.