| 高速钢M2中共晶碳化物M_2C的性质和形态 |
| |
| 引用本文： | 周雪峰,方峰,蒋建清,李德辉,朱旺龙.高速钢M2中共晶碳化物M_2C的性质和形态[J].钢铁,2009,44(9). |
| |
| 作者姓名： | 周雪峰 方峰 蒋建清 李德辉 朱旺龙 |
| |
| 作者单位： | 1. 东南大学江苏省先进金属材料高技术研究重点实验室,江苏南京,211189
2. 天工集团,江苏丹阳,215400 |
| |
| 基金项目： | 国家重点基础研究发展计划项目(2007CB616903); 江苏省科技成果转化资金专项资助项目(BA2005053) |
| |
| 摘 要： | 采用砂型和金属型铸造制备M2高速钢铸锭,研究了共晶碳化物M2C性质和形态随冷却速度的变化规律。结果表明,冷速加快,促进共晶M2C由平直片层状变为弯曲棒状,并使碳化物中合金元素含量降低,基体合金含量升高。不同形态M2C热分解性质差异较为明显:片层状M2C分解产生的MC多分布在碳化物内部,形成大量M6C+MC复合碳化物;棒状M2C起始分解温度低于片层状M2C,MC多形成于碳化物和基体界面处,高温加热时易与M6C分离,使复合碳化物数量减少。共晶M2C热分解性质的差异与冷速不同引起的合金元素分布变化有关。
|
| 关 键 词： | 高速钢 冷却速度 共晶M2C 形态 性质 |
Study on Property and Morphology of M_2C Eutectic Carbides in M2 High Speed Steel |
| |
| ZHOU Xue-feng,FANG Feng,JIANG Jian-qing,LI De-hui,ZHU Wang-long.Study on Property and Morphology of M_2C Eutectic Carbides in M2 High Speed Steel[J].Iron & Steel,2009,44(9). |
| |
| Authors: | ZHOU Xue-feng FANG Feng JIANG Jian-qing LI De-hui ZHU Wang-long |
| |
| Affiliation: | ZHOU Xue-feng1,FANG Feng1,JIANG Jian-qing1,LI De-hui2,ZHU Wang-long2(1.Jiangsu Key Laboratory of Advanced Metallic Materials,Southeast University,Nanjing 211189,Jiangsu,China,2.Tiangong Group,Danyang 215400,China) |
| |
| Abstract: | The effect of cooling rate on property and morphology of M2C eutectic carbide in M2 high speed steel was investigated by analysis of cast ingots prepared by sand mould and metal mould.The corresponding mechanism was also explored.The results show that the morphology of M2C carbides transforms from lamellar to rod-like with the increase of cooling rate.Meanwhile,the concentration of alloying elements in M2C decreases while it increases in the matrix.The decomposition process of lamellar and rod-like M2C is s... |
| |
| Keywords: | high speed steel cooling rate M2C eutectic carbide morphology property |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
