熔化的钎料原子沿着母材金属的结晶晶界的扩散现象称为晶界扩散。 晶界扩散所需要的激活能比体扩散小，因此，在温度较低时，往往只有晶界扩散发生。而且，越是晶界多的金属，越易于焊接，焊接的机械强度也就越高。
... boundary breakthrough 边界联络横巷 boundary condition 边界条件 boundary diffusion 晶界扩散 ...
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... 5 a-reductase 5a-还原酶抑制剂 grain boundary decision 晶界扩散 aortic regurgitation 主动脉瓣反流 ...
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The main mechanism of superplastic deformation of the two alloys is grain boundary sliding and grain rotation accommodated by dynamic recrystallization, dislocation motion, grain boundary diffusion, liquid phase, filament and cavity.
两种合金超塑形变的主要机制是由动态再结晶、位错运动、晶界扩散、液相、细丝和空洞等协调的晶界滑移和晶粒转动。
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从而得出钯活化钼的烧结机理以晶界扩散为主。
It is concluded that the activated sintering mechanism of molybdenum by palladium is mainly derived from boundary diffusion.
晶界扩散在烧结过程中始终起着非常重要的作用。
Grain boundary diffusion plays an important role in the whole sintering course.
晶界扩散控制晶界滑动是低温超塑行为的主要机理。
Grain sliding controlled by grain boundary diffusion is the main mechanism for low temperature superplastic behavior.
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