Analysis of Laser Surface Hardened Layers of Automobile Engine Cylinder Liner

钢铁研究学报(英文版), 2007, 14(1): 42-46.

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1.Laboratory for Laser Intelligent Manufacturing, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China;School of Materials and Chemical Engineering, Zhongyuan Institute of Technology, Zhengzhou 450007, Henan, China

2.Laboratory for Laser Intelligent Manufacturing, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China

3.School of Materials and Chemical Engineering, Zhongyuan Institute of Technology, Zhengzhou 450007, Henan, China

4.School of Materials and Chemical Engineering, Zhongyuan Institute of Technology, Zhengzhou 450007, Henan, China

5.School of Materials and Chemical Engineering, Zhongyuan Institute of Technology, Zhengzhou 450007, Henan, China

6.College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, Shandong, China

Analysis of Laser Surface Hardened Layers of Automobile Engine Cylinder Liner

Keywords： gray cast iron

Gray cast iron that is used for automobile engine cylinder liners was laser surface hardened using Nd∶YAG quasi-continuous and CO2 continuous wave laser, respectively. The macromorphology and microstructure of the laser surface hardened layers were investigated using an optical microscope. Geometric dimensions including depth and width and microhardness distribution of the hardened layers were also examined in order to evaluate the quality of the hardened layers.

参考文献

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[2]	Lawrence J;Li L .Modification of the Wettability Characteristics of Polymethyl Methacrylate (PMMA) by Means of CO2,Nd:YAG,Excimer and High Power Diode Laser Radiation[J].Material Science and Engineering,2001,A303:142-149.
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Analysis of Laser Surface Hardened Layers of Automobile Engine Cylinder Liner

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