镁合金表面激光熔覆非晶涂层

Laser cladding of Zr65Al7.5Ni10Cu17.5 amorphous alloy on magnesium
Abstract
Laser cladding of amorphous alloy Zr65Al7.5Ni10Cu17.5 on magnesium substrate was conducted using the blown powder method. The thickness
of the coating was about 1.5 mm. The resulting microstructure, wear resistance and corrosion resistance of the coating were studied. The results of
the XRD and TEM analyses showed that up to a depth of 1.1 mm, the coating had an amorphous structure, and no apparent crystalline structures
were found. The coated specimen exhibited wear and corrosion resistance superior to that of the uncoated specimen: the wear loss was
significantly reduced, some thirteen-fold; and the corrosion current was lowered by three orders of magnitude.
通过吹送粉末的方法在镁基体表面激光熔覆Zr基非晶合金，涂层厚1.5mm。研究了涂层的微观组织、耐磨性及抗腐蚀性。XRD、TEM的分析结果表明，由涂层表面至1.1mm处，涂层为非晶，未发现明显的晶体结构，......