Hard coatings on magnesium alloys by sputter deposition using a pulsed dc bias voltage
Hard coatings on magnesium alloys by sputter deposition using a pulsed dc bias voltage
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DOI：
10.1016/0257-8972(95)02608-8
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发表时间：
1995-12-01
影响因子：
5.4
通讯作者：
Griepentrog, M
中科院分区：
文献类型：
--
作者：
Reiners, G;Griepentrog, M
在不同的技术研究中，预测了镁基轻金属合金在各种工业应用中的越来越多的使用。不同分支机构的公司已经开发出用镁合金制成的机械部件(例如汽车、汽车发动机、缝纫机和针织机)。因此，本研究采用物理气相沉积(PVD)和电化学沉积相结合的方法在镁合金表面沉积TiN硬质涂层，研究其对镁合金耐磨性和耐蚀性的影响。一种双极脉冲直流。在沉积过程中，利用偏置电压将基片温度控制在180℃以下，而显微硬度和结合力没有明显的损失。比较了直接沉积在镁合金上的TiN涂层的附着力、硬度和承载能力，并与在PVD之前用Ni-P合金中间层化学镀的衬底上沉积的TiN涂层的相应值进行了比较。
An increasing use of magnesium-based light-metal alloys for various industrial applications was predicted in different technological studies. Companies in different branches have developed machine parts made of magnesium alloys (e.g. cars, car engines, sewing and knitting machines). Hence, this work was started to evaluate the ability of hard coatings obtained by physical vapour deposition (PVD) in combination with coatings obtained by electrochemical deposition to protect magnesium alloys against wear and corrosion.TiN hard coatings were deposited onto magnesium alloys by unbalanced magnetron sputter deposition. A bipolar pulsed d.c. bias voltage was used to limit substrate temperatures to 180 degrees C during deposition without considerable loss of microhardness and adhesion.Adhesion, hardness and load-carrying capacity of TiN coatings deposited directly onto magnesium alloys are compared with the corresponding values of TiN coatings deposited onto substrates which had been coated electroless with an Ni-P alloy interlayer prior to the PVD.