Abrasion resistance of Al-Ni-Mm-Fe amorphous and nanocrystalline composite coating on the surface of AZ91 magnesium alloy
An Al-Ni-Mm-Fe amorphous and nanocrystalline composite coating was prepared onto the surface of AZ91 magnesium alloy by high velocity arc spraying process. And the microstructure of the coating was analyzed by scanning electron microscope (TEM) and X-ray diffraction (XRD). The analysis results indicated that the coating consists of amorphous, nanocrystalline and crystalline phases. It has a dense structure with a low porosity of about 2.0 ％. Its average micro Vickers hardness value is about 330 HV0.1, which is five times than that of AZ91 magnesium alloy (62 HV0.1) and four times than that of pure Al coating (71 HV0.1). The abrasion tests showed that the Al-Ni-Mm-Fe coating exhibits a good abrasion resistance.
High velocity arc spraying AZ91 Al-based Amorphous: Bond strength Micro Vickers Hardness Abrasion resistance
Zhang Zhi-bin Liang Xiu-bing Chen Yong-xiong Xu Bin-shi
Academy of Armored Forces Engineering, Fengtai District, 21 Dujiakan, Beijing 100072, China Beijing Academy of Armored Forces Engineering, Fengtai District, 21 Dujiakan, Beijing 100072, China
国际会议
北京
英文
498-502
2012-10-23（万方平台首次上网日期，不代表论文的发表时间）