Effect of Scanning Speed on Properties of Laser Surface Remelting Layer of CuCr Alloy

Xu Wang; Gang Yu; Xiuli He; Shaoxia Li; Chongxin Tian; Jiayun Shao; Baohua Liu

doi:10.3788/LOP202259.0114006

Laser & Optoelectronics Progress, Volume. 59, Issue 1, 0114006(2022)

Effect of Scanning Speed on Properties of Laser Surface Remelting Layer of CuCr Alloy

Xu Wang^1,3, Gang Yu^1,2,3、*, Xiuli He^1,3, Shaoxia Li^1,3, Chongxin Tian^1,3, Jiayun Shao^1,3, and Baohua Liu⁴

Author Affiliations

¹Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China

⁴Beijing Orient Vacuum Electric Co., Ltd., Beijing 101500, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(10)

Fig. 1. CuCr50 alloy. (a) Contact specimen; (b) microstructure

Download full size

Fig. 2. Schematic diagram of laser surface remelting experimental system

Download full size

Fig. 3. Cross-sectional microstructure of the remelting layer of CuCr50 alloy. (a) Overall view; (b) local magnified image

Download full size

Fig. 4. SEM images of remelting layer under different scanning speeds. (a) 2000 mm/min; (b) 4000 mm/min; (c) 6000 mm/min; (d) 8000 mm/min; (e) 10000 mm/min

Download full size

Fig. 5. Influence of scanning speed on the depth of remelting layer

Download full size

Fig. 6. Influence of scanning speed on microhardness distribution of remelting layer

Download full size

Fig. 7. Fracture morphology and element distribution map. (a) Remelting layer; (b) substrate

Download full size

Table 1. Processing parameters of laser surface modification process
View table
Table 1. Processing parameters of laser surface modification process
Laser processing parameters Value
Scanning speed /
（mm·min^-1）
2000，4000，6000，8000，10000
Laser power /W 530
Spot diameter /mm 0.09
Overlapping rate /% 20

Table 2. Relationship between scanning speed and surface roughness of CuCr50
View table
Table 2. Relationship between scanning speed and surface roughness of CuCr50
Scanning speed /（mm·min^-1） 2000 4000 6000 8000 10000 Original
R_a /μm >10 5.49 5.27 5.06 3.34 0.81

Table 3. Tensile property parameters of laser treated and original specimens
View table
Table 3. Tensile property parameters of laser treated and original specimens
Scanning speed /（mm·min^-1） 4000 6000 8000 Original
Yield strength /MPa 233 225 212 182

Tools

Get Citation

Copy Citation Text

Xu Wang, Gang Yu, Xiuli He, Shaoxia Li, Chongxin Tian, Jiayun Shao, Baohua Liu. Effect of Scanning Speed on Properties of Laser Surface Remelting Layer of CuCr Alloy[J]. Laser & Optoelectronics Progress, 2022, 59(1): 0114006

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites