The effect of laser process parameters on microstructure and dilution rate of cladding coatings

International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料科学

Bin, Liu^1 ; Heping, Liu^1,2 ; Xingbin, Jing^1 ; Yuxin, Li^1 ; Peikang, Bai^1

School of Materials Science and Engineering, North University of China, Taiyuan

030051, China^1

School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan

030024, China^2

关键词: 316 L stainless steel;    Cladding layer;    Cladding parameters;    Geometric cross-sections;    Geometrical sizes;    Laser cladding technology;    Laser process parameters;    Single channels;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/307/1/012035/pdf
DOI  :  10.1088/1757-899X/307/1/012035

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to broaden the range of application of Q235 steel, it is necessary to repair the surface of steel. High performance 316L stainless steel coating was successfully obtained on Q235 steel by laser cladding technology. The effect of laser cladding parameters on the geometrical size and appearance of single cladding layer was investigated. The experimental results show that laser current has an important influence on the surface morphology of single channel cladding. When the current is from 155A to 165A, the cladding coating becomes smooth. The laser current has an effect on the geometric cross section size and dilution rate of single cladding. The results revealed that with the rising of laser current, the width, height and depth of layer increase gradually. With the rising of laser current, the dilution rate of cladding layer is gradually increasing.