Wear Analysis of Thermal Spray Coatings on 3D Surfaces
Wear Analysis of Thermal Spray Coatings on 3D Surfaces
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DOI：
10.1007/s11666-013-9983-y
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发表时间：
2013
影响因子：
3.1
通讯作者：
W. Tillmann;W. Luo;U. Selvadurai
中科院分区：
文献类型：
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作者：
W. Tillmann;W. Luo;U. Selvadurai
尽管在过去的十年中，热喷涂涂层在复杂几何形状上的应用引起了人们的极大兴趣，但不同的几何特征对磨损行为的影响仍然不清楚。本文研究了FTC-FeCSiMn涂层3D表面的耐磨性。磨损试验是通过两种创新的试验程序进行的。第一个测试是销上管测试，其中旋转运动是通过车床卡盘实现的。第二次测试中的样本被固定在桌子上，机器人手臂操作大头针。该磨损试验适用于具有凹面或凸面的试件。通过增量打孔法测定的残余应力与衬底几何形状有关。将得到的应力与不同的半径进行了比较。磨损试验结束后，用三维轮廓仪测定了磨损量，并用扫描电子显微镜对涂层的断面进行了表征。结果表明，衬底的几何形状对耐磨性有很大的影响。
Even though the application of thermal spray coatings on complex geometries gained a greater interest in the last decade, the effect of different geometrical features on the wear behavior is still ill-defined. In this study, the wear resistance of FTC-FeCSiMn coated 3D surfaces was investigated. The wear test was carried out by means of two innovative testing procedures. The first test is a Pin-on-Tubes test where the rotating motion is realized by a lathe chuck. The specimens in the second test were fixed on the table and a robot arm operated the pin. This wear test was applied on specimens with concave or convex surfaces. The residual stresses, which were determined by means of an incremental hole-drilling method, show a dependency on the substrate geometry. The obtained stresses were put in relation to the different radii. After the wear test, a 3D-profilometer determined the wear volume and the sections of the coatings were characterized by a scanning electron microscope. The results indicate that the wear resistance is strongly influenced by the geometry of the substrate.