脆断都是属于低应力破坏，其破坏应力往往远低于材料的屈服极限。
采用过渡层法进行钛合金与不锈钢的焊接时，基本能够避免焊接材料之间脆性金属间化合物的大量生成，从而有效提高焊接接头的连接强度。
The intermetallics could be avoided effectively by using the method of transition layers between titanium alloy and stainless steel, and the tensile strength of welded joints is enhanced.
氢脆：由于浸蚀，除油或电镀等过程中金属或合金吸收氢原子而引起的脆性。
Hydrogen brittleness: because, in addition to the erosion oil or plating process such as metal and alloy hydrogen atom absorption and cause brittle.
本文介绍了焊接残余应力对金属结构的静强度、脆性断裂以及应力腐蚀开裂的影响。
The paper discusses over the influence exerted by welding residual stress on the static strength, brittle fracture and stress-corrosion cracking of metal structure.
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