Effect of Rare Earth Elements on Quenching Crack Resistance of Steel 9Cr2Mo
来源期刊：JOURNAL OF RARE EARTHS2001年第1期
论文作者：张兰萍 杨庆祥 郭铁波 李慧
Abstract: The effect of rare earth elements on quenching crack resistance of steel 9Cr2Mo was investigated by means of scanning electron microscopy (SEM) and optical microscopy. Experimental results show that, by adding RE elements to steel 9Cr2Mo, the number of quenching for crack initiation is increased. Meanwhile the propagation of quenching cracks is postponed and the paths of crack propagation are changed. Therefore, quenching crack resistance can be improved by adding RE elements to steel 9Cr2Mo.
张兰萍1，杨庆祥2，郭铁波3，李慧2
(1.Development of Machinery and Electron, Jixi University,;
2.College of Materials Science Engineering, Yanshan University,;
3.College of Industry Technology, Harbin Science and Technology University,)
Abstract:The effect of rare earth elements on quenching crack resistance of steel 9Cr2Mo was investigated by means of scanning electron microscopy (SEM) and optical microscopy. Experimental results show that, by adding RE elements to steel 9Cr2Mo, the number of quenching for crack initiation is increased. Meanwhile the propagation of quenching cracks is postponed and the paths of crack propagation are changed. Therefore, quenching crack resistance can be improved by adding RE elements to steel 9Cr2Mo.
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