中文摘要：

激光 cladding 扔了钛合金普遍显示出的 Ti-6Al-4V 更复杂的微观结构，其各个在机械性质上有重要效果。特别 / ，接口阶段在某些条件下面在这份报纸被观察了。它证明张力的性质上的 / 接口阶段的影响仔细通过比较实验与脱臼和成双的基础被联系。结果证明 / 接口阶段妨碍脱臼运动并且减少有效滑倒长度。另外，成双的基础在张力的过程期间在 / 接口阶段被激活并且扮演了以某种方式相似的谷物边界。因此，力量和激光 cladding 的变硬工作的率扔了 Ti-6Al-4V 钛合金显著地由于动态 Hall-Petch 效果被改进了。而且， / 接口阶段导致更一致的脱臼分发，它暗示那个相对更低的本地人集中了应力将在塑料的一样的数量以后沿着 / 接口阶段或殖民地边界被生产变丑。而且，在 / 接口阶段的导致双胞胎的粘性效果进一步增加塑料变丑能力。在为激光 cladding 的更高的延伸的这些结果扔了 Ti-6Al-4V 钛合金。当前的工作建议同时改进激光 cladding 的力量和粘性的一个有效方法基于 / 接口阶段扔了 Ti-6Al-4V 钛合金，这能被结束。

英文摘要：

Laser cladding deposited Ti-6Al-4V titanium alloy universally shows more complex microstructures,each of which has significant effect on mechanical properties. Of particular α/β interface phase has been observed in this paper under certain conditions. It demonstrates that the influence of the α/β interface phase on the tensile properties is closely associated with dislocations and twin substructure through comparison experiments. The results show that the α/β interface phase hinders dislocation motion and decreases effective slip length. In addition, the twin substructure has been activated in the α/β interface phase during tensile process and has acted somehow like grain boundaries. Therefore, the strength and the work-hardening rate of the laser cladding deposited Ti-6Al-4V titanium alloy have been significantly improved due to the dynamic Hall-Petch effect. Besides, the α/β interface phase leads to more uniform dislocations distribution, which implies that relative lower local concentrated stress will be produced along the α/β interface phase or colony boundary after the same amount of plastic deformation. Moreover,the twinning-induced plasticity effects in the α/β interface phase further increase the plastic deformation capacity. These results in higher elongation for the laser cladding deposited Ti-6Al-4V titanium alloy.It can be concluded that the current work suggests an effective method to simultaneously improve the strength and plasticity of laser cladding deposited Ti-6Al-4V titanium alloy based on the α/β interface phase.