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首页> 外文期刊>Vacuum: Technology Applications & Ion Physics: The International Journal & Abstracting Service for Vacuum Science & Technology >Microstructures and mechanical properties of Ti-Cr-N/Al-Ti-Cr based coatings prepared by plasma nitriding 5083 Al alloys co-deposited with Ti-Cr films
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Microstructures and mechanical properties of Ti-Cr-N/Al-Ti-Cr based coatings prepared by plasma nitriding 5083 Al alloys co-deposited with Ti-Cr films

机译：用Ti-Cr膜共沉积的血浆氮化5083 Al合金制备的Ti-Cr-N / Al-Ti-Cr基涂层的微观结构和力学性能

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摘要

A duplex treatment involving sputtering Ti-Cr film followed with plasma nitriding was employed to in-situ fabricate multilayer coatings on the surface of 5083 Al alloys. Ti-Cr films with different Cr addition were firstly sputtered on 5083 Al alloys by using magnetron sputtering, then nitrided at 460 degrees C under the N-2-H-2 gas condition. Results showed that the as-obtained coatings were composed of the outside (Ti, Cr)N-0.3 or (Ti,Cr)N layer and the inside Al18(Ti,Cr)(2)Mg-3 layer. With increasing Cr content in the Ti-Cr film, (Ti,Cr)N phase was inclined to form in the outside layer and the Al18(Ti,Cr)(2)Mg-3 layer increased the thickness. Meanwhile, the surface hardness of multilayer coatings was enhanced and reached the maximum value of similar to 1020 HV. Specimens with outside (Ti,Cr)N layer showed better wear resistance than specimens with outside (Ti,Cr)N-0.3 layer. The nitrided specimens exhibited mainly adhesive wear and abrasive wear accompanied with oxidation wear.
机译：涉及溅射Ti-Cr膜的双链体处理，然后用等离子体氮化物用于原位制造在5083 al合金表面上的多层涂层。 通过使用磁控溅射在5083 al合金上首先溅射具有不同Cr的Ti-Cr薄膜，然后在N-2-H-2气体条件下氮化为460℃。 结果表明，如所得涂层由外部（Ti，Cr）N-0.3或（Ti，Cr）n层和内部Al18（Ti，Cr）（2）Mg-3层组成。 随着Ti-Cr膜中的增加，（Ti，Cr）n相倾斜以在外层中形成，并且Al18（Ti，Cr）（2）Mg-3层增加厚度。 同时，提高了多层涂层的表面硬度，达到了与1020HV相似的最大值。 具有外部（Ti，Cr）n层的标本显示比具有外部（Ti，Cr）N-0.3层的样品更好的耐磨性。 氮化试样主要呈粘合剂磨损，伴有氧化磨损。

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