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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Mo Addition on the Mechanical and Wear Behavior of Plasma Rotating Electrode Process Atomized Ti6Al4V Alloy
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Effect of Mo Addition on the Mechanical and Wear Behavior of Plasma Rotating Electrode Process Atomized Ti6Al4V Alloy

机译：MO添加对等离子体旋转电极工艺雾化Ti6Al4V合金机械和磨损行为的影响

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摘要

In the current study, the effect of Mo content (1-10 wt.%) on the microstructure, hardness, bending and wear properties of Ti6Al4V-xMo alloys was investigated. The pre-alloyed and Plasma Rotating Electrode Process (PREP) atomized Ti6Al4V alloy powders and elemental Mo particles were mechanically mixed for 45 min in a zirconia jar. A uniaxial vacuum hot pressing was applied at 950 degrees C for 30 min under 50 MPa pressure. The Ti6Al4V-xMo alloys were prepared metallographically and characterized by optical and scanning electron microscopy. The chemical composition of the different zones in the structure was determined using energy-dispersive x-ray (EDX) analysis. Mo appeared among the TiAl64V alloy particles and caused the formation of different diffusion zones. The formation of grain boundary alpha was effectively prevented, and instead, fine alpha' and beta zones were formed. Various phases formed along the particle boundaries of the Ti6Al4V alloy, and effective improvements in hardness, bending and wear resistance were obtained. However, the highest Mo content caused a decrease in mechanical properties. Ti6Al4V-5Mo alloy showed superior hardness and wear resistance.
机译：在目前的研究中，研究了钼含量（1-10 wt.%）对Ti6Al4V-xMo合金的显微组织、硬度、弯曲和磨损性能的影响。预合金化和等离子旋转电极工艺（PREP）雾化Ti6Al4V合金粉末和元素钼颗粒在氧化锆罐中机械混合45分钟。在50 MPa压力下，在950℃下进行30分钟的单轴真空热压。采用金相方法制备了Ti6Al4V-xMo合金，并用光学显微镜和扫描电子显微镜对其进行了表征。利用能量色散x射线（EDX）分析确定了结构中不同区域的化学成分。Mo出现在TiAl64V合金颗粒中，并导致不同扩散区的形成。有效地防止了晶界α的形成，相反，形成了细小的α区和β区。Ti6Al4V合金沿颗粒边界形成了各种相，有效地提高了硬度、弯曲度和耐磨性。然而，钼含量最高会导致机械性能下降。Ti6Al4V-5Mo合金具有优异的硬度和耐磨性。

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