镍基自熔性合金粉末的制备及其涂层耐蚀性能的研究

题名	镍基自熔性合金粉末的制备及其涂层耐蚀性能的研究
作者	赵丽美
学位类型	硕士
导师	杨瑞成
答辩日期	2004
学位授予单位	兰州理工大学
学位名称	工学硕士
学位专业	材料学
关键词	镍基自熔性合金粉末等离子喷焊氧－乙炔火焰喷焊电化学腐蚀阳极极化高温氧化氧化动力学热疲劳
摘要	作为机械零部件三种主要失效形式之一，腐蚀问题直接关系到国民经济各个领域。鉴于此，本文依据质量百分因子（APF=4Cr/(2Mo+W)）法，并参考现今先进耐蚀合金和本课题组先前的研究工作，设计了一种新的Ni基自熔性耐蚀合金粉末。用氧－乙炔火焰喷焊、等离子喷焊将自制的粉末热喷涂于低碳钢基体上制备出耐蚀合金涂层。从涂层质量、电化学腐蚀、高温氧化和热疲劳方面对涂层性能及其机理进行研究。
其他摘要	Corrossion，as one of the three invalidation forms of the mechanical parts，is related to all the departments of the national economy.One new Ni-based self-fluxing alloy powder has been designed according to the experienced anti-corrossive alloys and the work that our team done before,by the way of APF. The Performance of the coatings,which were made by spraying the alloy powder by the way of oxyacetylene flame and plasma transferred arc surfacing，was studied through the quality of the coatings,electrochemical corrosion，high temperature oxidation and thermal fatigue. From the appearance of the coatings,the makeup phases,the quantity and distributing of the disfigurations,the fluctuation of the microhardness and the element diffusion of intergrated zone,we knew that,the coatings intergrated with the base metallurgically and the coating formed by plasma transferred arc surfacing was better than the one formed by oxyacetylene flame spraying.
页数	67
语种	中文
学号	P0408050208
文献类型	学位论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/96156
专题	兰州理工大学
作者单位	兰州理工大学
第一作者单位	兰州理工大学
推荐引用方式 GB/T 7714	赵丽美. 镍基自熔性合金粉末的制备及其涂层耐蚀性能的研究[D]. 兰州理工大学,2004.