Tribological properties of surface modified Ti-6Al-4V alloy under lubricated condition using Taguchi approach

Tribological properties of surface modified Ti-6Al-4V alloy under lubricated condition using Taguchi approach
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使用田口方法研究润滑条件下表面改性 Ti-6Al-4V 合金的摩擦学性能

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发表时间：
2018
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通讯作者：
Mahmudur Rahman
Mahmudur Rahman
中科院分区：
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文献类型：
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作者：
M. Maleque;L. H. Paijan;K. Bello;M. Azwan;Mahmudur Rahman

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表面改性技术是提高 5级钛合金（Ti6 Al-4V）的摩擦学性能。 表面熔化技术之一是钨 惰性气体（TIG）焊炬焊接产生类似的结果， 昂贵的高功率激光技术。的基材合金 预先放置碳化硅（SiC）粉末，然后 使用钨极惰性气体（TIG）焊枪表面熔化 熔融技术表面的工艺参数 熔化技术是电流、电压、移动速度和 SiC粉末尺寸。对工艺进行了优化 为了获得所需的SiC质量特性， 在Minitab中使用Taguchi方法的涂层表面 17版软件。结果表明 硬度和更好的磨损率显著提高 性能最大硬度增加， 482.3 Hv，而基板材料为152.8 Hv。的 SiC改性钛合金的最低磨损结果 速率为0.1711 mm 3/Nm，摩擦系数为0.39。 研究发现，电压和SiC粉末粒度对SiC陶瓷的烧结性能有很大影响 对硬度、耐磨性和 改性钛合金的摩擦系数 表层
Surface modification technique is important to enhance the tribological properties of titanium alloy grade 5 (Ti6Al-4V). One of the surface melting techniques is tungsten inert gas (TIG) torch welding to produce similar results to the costly high power laser technique. The substrate alloy was preplaced with silicon carbide (SiC) powder and then melted using tungsten inert gas (TIG) torch surface melting technique. The process parameters of the surface melting technique are current, voltage, travel speed and SiC powder size. The process optimization was carried out to obtain the desired quality characteristics of the SiC coated surface using Taguchi method in the Minitab version 17 software. The results showed that the significant improvement of hardness and better wear rate performance. The maximum hardness increased until 482.3 Hv compared to substrate material of 152.8 Hv. The lowest result of the SiC modified titanium alloy for wear rate is 0.1711 mm3/Nm and coefficient of friction is 0.39. It is found that the voltage and SiC powder sizes play important role on the hardness, wear resistance and coefficient of friction of the modified titanium alloy surface layer.