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为提高ＴｉＡｌ金属间化合物的耐磨性，利用激光气体合金化技术对ＴｉＡｌ进行表面改性，在激光表面改性层中成功地制得了以高硬度氮化钛为增强相的新型快速凝固“原位”高耐磨复合材料。激光表面改性层的厚度根据需要可在０．１～１．５ｍｍ范围内调节，激光表面改性层的显微组织及性能可以通过改变激光处理工艺参数而得到灵活的控制。试验结果表明，激光气体合金化是一种提高ＴｉＡｌ化合物耐磨性的先进的表面改性新技术。
In order to improve the wear resistance of TiAl intermetallics, TiAl was modified by laser gas alloying and a new type of rapid solidification precursor with high hardness TiN was successfully prepared in the laser surface modification layer Bit "high wear-resistant composite materials. The thickness of the laser surface modification layer can be adjusted within the range of 0.1-1.5mm according to the needs. The microstructure and properties of the laser surface modification layer can be flexibly controlled by changing the laser processing technological parameters. The experimental results show that laser gas alloying is an advanced surface modification technology to improve the wear resistance of TiAl compounds.