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《Journal of Baotou University of Iron and Steel Technology》 2005-03
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Microstructure and hardness of laser quenching on 9Cr_2 steel

LI Wen-xue~1,ZHANG Feng-yun,CHEN Hong-jie~2,ZHAO Neng-huai~2,LIU Kai(1.Material and Metallurgical School,UST Inner Mongolia,Baotou 014010,China;2.Baotou Guangtong Laser Technological Co.Ltd.,Baotou 014010,China,China)  
The microstructure and hardness of laser heat treatment of 9Cr_2 steel were studied.The results show that the laser process parameters have an important effect on the microstructure and hardness of 9Cr_2 steel.The size of the melt area become small and the microstructure of phase change zone is refined when the scan velocity is increased with reducing the laser power.
【CateGory Index】: TG156.99
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