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首页> 外文会议>International Conference on Surface Modification Technologies >Correlation of Liquid Impact Erosion Resistance of Laser Alloyed Nickel and Titanium Based Intermetallic Matrix Composites with Instrumented Indentation-derived Properties
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Correlation of Liquid Impact Erosion Resistance of Laser Alloyed Nickel and Titanium Based Intermetallic Matrix Composites with Instrumented Indentation-derived Properties

机译：激光合金化镍和钛金属间基质复合材料与仪表压痕衍生性能的液体冲击抗腐蚀性抗性的相关性

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摘要

Nickel and Titanium based intermetallic matrix composites (IMC) with TiC reinforcement were laser alloyed on Ti-6Al-4V substrate using a 4kW cw Nd:YAG laser at different laser process parameter combinations. The alloyed layers were subjected to high speed liquid impact erosion test. In one of the tested specimens, an improvement in erosion resistance was achieved up to a factor of 1.63. The erosion resistance was correlated with the elastic-plastic properties derived from Depth-sensing indentation (DSI) experiment. The results suggest that a correlation can be established among similar group of intermetallics. The correlation also shows that a dominant single mechanical property alone can not improve the erosion resistance. An optimum combination of different mechanical properties may be helpful to combat the erosion. Apart from that, the microstructural features also play a vital role in deciding the erosion characteristics of the alloyed layer.
机译：具有TIC加强件的镍和基于金属间基质复合材料（IMC）在不同的激光工艺参数组合时使用4kW CW ND：YAG激光在Ti-6AL-4V基板上激光。合金层进行高速液体冲击腐蚀试验。在其中一个测试的样本中，抗腐蚀性的提高达到1.63倍。侵蚀抗性与源自深度传感凹口（DSI）实验的弹性塑性特性相关。结果表明，在类似的金属间金属组中可以建立相关性。相关性还表明，单独的主要单机械性能不能提高耐腐蚀性。不同机械性能的最佳组合可能有助于打击侵蚀。除此之外，微观结构特征也在决定合金层的腐蚀特性方面发挥着至关重要的作用。

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