Ti60合金和表面Ni-Co-Cr-Al-Y-Si涂层氧化动力学的研究  

Oxidation Resistance Enhancement of Ti60 Alloy Coated with Ni-Co-Cr-Al-Y-Si Layers

作　　者：李剑锋[1] 廖云建[2] 李晓虹[2] 王兆松[3] 李国卿[3] 

机构地区：[1]大连交通大学,大连116028 [2]中航工业北京航空制造工程研究所,北京100024 [3]大连理工大学三束材料改性教育部重点实验室,大连116023

出　　处：《真空科学与技术学报》2010年第5期520-523,共4页Chinese Journal of Vacuum Science and Technology

摘　　要：研究了Ti60合金及表面阴极多弧离子镀沉积涂层（Ni—Co-Cr-Al-Y-Si）的600～750℃的高温氧化行为。采用x射线衍射、扫描电子显微镜等方法，对Ti60合金及涂层表面形貌、结构和成分进行分析研究。结果表明涂层对Ti60合金在600，650和750℃均有较好的抗氧化性能。循环氧化动力学曲线基本上符合抛物线规律。涂层显著提高了Ti60合金抗氧化性能。The Ti60 alloy was surface modified with coatings of Ni-Co-Cr-Al-Y-Si layers, deposited by multi-arc ion plating. The impacts of the deposition conditions, such as the pressure, substrate temperature, bias voltage, and current of the multi-arc, on the film quality were studied. The micmstructures and oxidation resistance of the surface modified Ti60 were characterized with X-ray diffraction, scanning electron microscopy and other classical techniques. The results show that the surface modification with the Ni-Co-Cr-Al-Y-Si layers significantly increases the oxidation resistance of Ti60 alloy, with fairly high oxidation resistance at 600℃, 650℃, and 700℃. The calculation of the cyclic oxidation dynamics shows that the curve basically conforms to the parabola rule.

关 键 词：Ti60合金多弧离子镀Ni.Co.Cr-A1.Y.Si涂层抗氧化 

分 类 号：O484.4[理学—固体物理]