材料科学
涂层
包层(金属加工)
微观结构
复合材料
激光器
残余应力
光学
辐照
粒度
衍射
扫描电子显微镜
物理
核物理学
作者
Yuxin Li,Bowen Chen,Peikang Bai,Ruibin Duan,Zhiguo Liu,Shouzheng Wei,Jie Cai,Qingxin Guan
出处
期刊:Applied Optics
[The Optical Society]
日期:2021-10-20
卷期号:60 (30): 9570-9570
被引量:1
摘要
To reduce the number of microcracks and pores on the surface of laser cladding layers, we used a novel, to the best of our knowledge, surface alloying method to modify the surface of a NiCoCrAlY laser cladding coating using high-current pulsed electron beam technology. The x-ray diffraction peaks of the irradiated coatings were affected by the residual stress, which caused the peaks to shift and significantly broaden. With an increase in the number of pulses, the cleaning effect of the coating surface became significant. At the same time, the degree of surface alloying increased, and different degrees of slip were formed on the surface of the coating. There were many nanocrystals accumulated at the slip angle, and the grain size of the coating surface increased.
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