义齿焊区未见断裂、开焊、变形及腐蚀变色现象。
There was no joint fractures and corrosions and color changes.
扩散焊接的焊区结合情况直接影响结构的力学性能。
The mechanical properties of diffusion welded structures were strongly dependent on the homogeneity of welded interfaces.
这也从分形理论的角度证明了在超塑性固相焊接头的形成过程中，焊接面各微区的焊合状态是非均匀性的。
It is proved by fractal theory that the welded state of every micro zone at welded surface is uneven in the formation process of isothermal superplastic solid-state welding joint.
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