Development of a plasma surface treatment for magnesium alloys to ensure sufficient wear and corrosion resistance
Development of a plasma surface treatment for magnesium alloys to ensure sufficient wear and corrosion resistance
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DOI：
10.1016/s0257-8972(03)00634-0
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发表时间：
2003-09-01
影响因子：
5.4
通讯作者：
Berger, C
中科院分区：
文献类型：
--
作者：
Hoche, H;Scheerer, H;Berger, C
作者的广泛研究表明，有可能在镁合金表面制备可靠的等离子体气相沉积(PVD)硬质涂层，其耐磨性可与PVD涂层的钢或钛基合金相媲美。在腐蚀介质中，涂层针孔引起的临界接触和点蚀是涂层镁合金的主要失效机制，即使在不施加任何摩擦学载荷的情况下也是如此。作者开发了等离子体阳极氧化的新方法，以确保可接受的耐蚀性。与传统的阳极氧化工艺不同，水中的电解液被氧气等离子体所取代。该工艺的主要优点是不使用有毒电解液，无废料，阳极氧化和PVD涂层可一次完成。本文简要介绍了我们从第一个镁合金PVD沉积方法到现在建立等离子体阳极氧化的广泛工作。(C)2003 Elsevier Science B.V.保留所有权利。
Extensive investigations of the authors showed the possibility of producing reliable plasma vapour deposition (PVD) hard coatings on magnesium alloys with good wear properties comparable to PVD coated steel or titanium based alloys. In presence of corrosive mediums crucial contact and pitting corrosion, induced by process related coating pinholes are the main failure mechanisms of coated magnesium alloys, even without any tribological load applied. The authors developed the new method of plasma anodisation to ensure acceptable corrosion resistance. In contrast to conventional anodisation processes the aqueous electrolyte is substituted by an oxygen plasma. The main advantages are that the process uses no toxic electrolytes, there is no waste and anodising and PVD-coating can be done in one process. The article gives a brief view of our extensive work starting from the first approach in PVD deposition of magnesium alloys up to the present work in establishing the plasma anodisation. (C) 2003 Elsevier Science B.V. All rights reserved.