| Si影响M2高速钢中共晶碳化物的精细研究 |
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| 引用本文： | 王维青,潘复生,汤爱涛,石宝东.Si影响M2高速钢中共晶碳化物的精细研究[J].材料导报,2011,25(2):89-91,103. |
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| 作者姓名： | 王维青 潘复生 汤爱涛 石宝东 |
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| 作者单位： | 重庆大学材料科学与工程学院,重庆,400030 |
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| 基金项目： | 国家自然科学基金项目，科技部国际合作重大项目 |
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| 摘 要： | 通过金相、扫描电镜、X射线衍射、能谱分析等方法对添加不同Si量的M2高速钢中的共晶碳化物进行了精细研究。结果表明,添加1%Si后,M2高速钢铸态组织中共晶碳化物的类型和形貌都没有明显变化,仍以层片状M2C碳化物为主;添加2%和3%Si后,铸态组织中的共晶碳化物变为"鱼骨"状M6C碳化物,层片状M2C共晶碳化物已完全消失;此外,随着含Si量的增加,高速钢铸态组织枝晶间距减小。
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| 关 键 词： | M2高速钢 铸态组织 碳化物 Si |
Investigation on Effect of Si Addition on the Eutectic Carbides of the As-cast M2 High Speed Steel |
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| WANG Weiqing,PAN Fusheng,TANG Aitao,SHI Baodong.Investigation on Effect of Si Addition on the Eutectic Carbides of the As-cast M2 High Speed Steel[J].Materials Review,2011,25(2):89-91,103. |
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| Authors: | WANG Weiqing PAN Fusheng TANG Aitao SHI Baodong |
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| Affiliation: | (College of Materials Science and Engineering,Chongqing University,Chongqing 400030) |
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| Abstract: | The effect of silicon addition on the type and morphology of eutectic carbides in the as-cast M2 high speed steel was investigated by optical microscopy,SEM,XRD and EDS.It is shown that the type and morphology of eutectic carbides remain almost unchanged when 1wt% Si is added to the M2 steel.With the addition of silicon up to 2wt% and 3wt%,the eutectic carbides in the M2 high speed steel change from lamellar-like M2C to herringbone-like M6C,and the M2C eutectoid carbides have disappeared.Silicon is also found to decrease the dentrite spacing of the M2 high speed steel. |
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| Keywords: | Si |
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