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Influence of Mo content on properties of Ti–Al–Mo–N films
Surface Engineering ( IF 2.8 ) Pub Date : 2020-08-31
Ting Gao, Lihua Yu, Guiyun Lu, Hongbo Ju, Junhua Xu

Ti–Al–Mo–N composite films with different molybdenum content were deposited by reactive magnetron sputtering. The results showed that the films consisted of fcc-(Ti, Al, Mo) N substitutional solid solution within 8.2 at.-% Mo. The films consisted of two phases which were fcc-(Ti, Al, Mo) N substitutional solid solution and fcc-Mo2N at 27.7–49.4 at.-% Mo. The hardness increased slowly at 0–27.7 at.-% Mo and then increased rapidly at above 27.7 at.-% Mo. A ball-on-disc dry sliding test was conducted on films deposited on stainless-steel substrates. The friction coefficient quickly decreased within 8.2 at.-% Mo and then gently declined at 8.2–49.4 at.-% Mo. The value of wear rate remained quite constant for compositions in the range 0–34.3 at.-% Mo and then dropped quickly at 34.3–49.4 at.-% Mo. The addition of Mo content effectively improved the hardness and tribological properties of the films.



中文翻译:

Mo含量对Ti-Al-Mo-N薄膜性能的影响

通过反应磁控溅射沉积具有不同钼含量的Ti-Al-Mo-N复合膜。结果表明,薄膜由Mo含量在8.2 at .-%以下的fcc-(Ti,Al,Mo)N替代固溶体组成。薄膜由fcc-(Ti,Al,Mo)N替代固溶体两相组成。和fcc-Mo 2N在Mo的27.7–49.4 at。%处。硬度在Mo的0–27.7 at。%处缓慢增加,然后在Mo超过27.7 at。%时迅速增加。对膜进行了圆盘干式滑动试验沉积在不锈钢基材上。摩擦系数在Mo的8.2 at .-%Mo内迅速下降,然后在8.2-49.4 at .-%Mo处缓慢下降。对于在0-34.3 at .-%Mo范围内的成分,磨损率值保持相当恒定,然后下降Mo的含量为34.3–49.4 at .-%时很快。添加Mo含量可有效改善膜的硬度和摩擦学性能。

更新日期:2020-08-31
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