指出增加变形速率使近缝区金属强化机制为位错强化、一定数量的岛状第二相强化和细晶粒强化。
It has been indicated that the strengthening mechanism of the weld metal is the dislocation, a number of second island phases and fine grain size.
稳态蠕变速率主要由锌的点阵扩散和位错的攀移所控制，品界滑移对蠕变也有贡献。
The compressive creep rate in the alloy was mainly controlled by the lattice diffusion of zinc and dislocation limb, and the grain boundary sliding contributed for it in some degree.
与各种位错机制作了比较，认为控制变形速率的过程很可能是克服派一纳力。
After comparing with various dislocation mechanisms, it is shown that the deformation-controlling process is probably the overcoming of the Peierls-Nabarro force.
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