喷射成形高速钢中碳化物的类型与形貌
Type and Morphology of Carbide in Spray Formed High Speed Steel
摘 要
采用OM、SEM、XRD、EPMA、AFM等方法,对利用喷射成形技术生产的高速钢组织中碳化物类型与形貌进行了分析.结果表明:该钢显微组织为细小、均匀的等轴晶,其中主要存在M6C和MC两种类型的碳化物,其中骨骼状M6C型碳化物分布于晶界处,较大的颗粒状MC型碳化物主要分布于晶界交界处,细小的笋状MC型碳化物均匀分布于晶粒内部.
高速钢
显微组织
碳化物
spray formation
high speed steel
microstructure
carbide
Abstract
The type and morphology of carbide in spray formed high speed steel (HSS) were studied by means of OM,SEM,XRD,EPMA,AFM.The results show that the microstructure of spray formed HSS was fine and homogeneous equiaxed grain.There were two types carbides in spray formed HSS,M6C and MC.The bone-shape M6C carbides distributed along grain boundaries,the lager MC carbides distributed in the junction of grain boundaries,the fine bamboo shoot-shape MC carbides distributed inside the grains.
中图分类号 TG142.45
所属栏目 材料性能及其应用
基金项目
收稿日期 2008/9/30
修改稿日期 2008/11/11
网络出版日期
作者单位点击查看
备注宋学森(1979-),男,山东莱州人,硕士研究生.
引用该论文: SONG Xue-sen,ZHOU Can-dong,XUAN Fu-zhen,LE Hai-rong,WANG Zheng-dong,FAN Jun-fei. Type and Morphology of Carbide in Spray Formed High Speed Steel[J]. Materials for mechancial engineering, 2009, 33(3): 57～60
宋学森,周灿栋,轩福贞,乐海荣,王正东,樊俊飞. 喷射成形高速钢中碳化物的类型与形貌[J]. 机械工程材料, 2009, 33(3): 57～60
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【13】LEE E,PARK W,BAIK K.Different carbide types and their effect on bend properties of a spray formed high speed steel[J].Scripta Materialia,1998,39:1133-1138.
【14】KIM C K,PARK J,LEE S.Effects of alloying elements on microstructure,hardness,and fracture toughness of centrifugally cast high-speed steel rolls[J].Metallurgical and Materials Transactions,2005,36(1):87-97.
【15】丁培道,周守则.高速钢中MC型初生碳化物述评[J].重庆大学学报,1984(4):131-139.
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