【摘 要】
：
Nanocrystalline AlTiN coatings were deposited by advanced plasma assisted arc (APA-Arc) technology on polished H13 steel substrates nitrided by arc plasma assisted nitriding technology using different
【机 构】
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School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangd
【出 处】
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第十一届全国表面工程大会暨第八届全国青年表面工程学术会议
论文部分内容阅读
Nanocrystalline AlTiN coatings were deposited by advanced plasma assisted arc (APA-Arc) technology on polished H13 steel substrates nitrided by arc plasma assisted nitriding technology using different N2/H2 flow ratios. The microstructures and mechanical properties of the duplex-treated coatings were characterized and analyzed comprehensively. The results show that the interfacial adhesion of the AlTiN coating is well enhanced by duplex treatment process, the adhesion grade of single AlTiN coating is up to HF3-4, while the adhesion grade of AlTiN duplex-treated coating is up to HF1. Also the AlTiN duplex-treated coatings with various thickness compound layers of total nitriding layer have different load-bearing capacity, and the interfacial adhesion force of AlTiN duplex-treated coating with few compound layer is up to 58N. The friction coefficient of single AlTiN coating is high and unstable, while AlTiN duplex-treated coatings have a stable coefficient of friction. Compared with AlTiN duplex-treated coating containing a few micrometer compound layer, AlTiN duplex-treated coating with few compound layer, which has sufficiently low coefficient of friction, shows better friction and wear property.
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