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| 有机物切割刀具用钢9CrV的低温二次硬化技术及原理 | |
| 引用本文： | 陈明昕,雍岐龙,刘振宝,亓海全,雍兮.有机物切割刀具用钢9CrV的低温二次硬化技术及原理[J].钢铁,2009,44(10). |
| 作者姓名： | 陈明昕 雍岐龙 刘振宝 亓海全 雍兮 |
| 作者单位： | 1. 钢铁研究总院,北京,100081;昆明理工大学材料与冶金工程学院,云南,昆明,650093 2. 钢铁研究总院,北京,100081 3. 钢铁研究总院,北京,100081;中国科学院计算技术研究所,北京,100190 |
| 基金项目： | 国家自然科学基金资助项目(50441032) |
| 摘 要： | 深入分析了有机物切割刀具用钢9CrV通过低温二次硬化实现超硬化的技术原理,采用特殊热处理工艺,在低温回火时直接析出大量微细的合金渗碳体,通过高碳马氏体强化叠加微细弥散合金渗碳体的沉淀强化可显著提高钢的硬度实现超硬化,合金渗碳体的尺寸细化到50 nm左右,由此使钢的热处理硬度达到HRC 68~72。 |
| 关 键 词： | 9CrV 刀具钢 低温二次硬化 超硬化 合金渗碳体 |
Technology and Principle of Low Temperature Secondary Hardening for Organic Matter Cutting Tool Steel |
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| CHEN Ming-xin,YONG Qi-long,LIU Zhen-bao,QI Hai-quan,YONG Xi.Technology and Principle of Low Temperature Secondary Hardening for Organic Matter Cutting Tool Steel[J].Iron & Steel,2009,44(10). | |
| Authors: | CHEN Ming-xin YONG Qi-long LIU Zhen-bao QI Hai-quan YONG Xi |
| Affiliation: | CHEN Ming-xin1,2,YONG Qi-long1,LIU Zhen-bao1,QI Hai-quan1,YONG Xi1,3(1.Central Iron and Steel Research Institute,Beijing 100081,China,2.School of Material and Metallurgy of Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,3.Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190,China) |
| Abstract: | The technical principle of reaching ultra-hardness by secondary hardening at low temperature for organic matter cutting tool steel 9CrV has been studied in detail.Special heat treatment was used to precipitate numerous and fine alloy cementites directly in low temperature tempering,and then realize ultra-hardness via high-carbon matensitic hardening and precipitation strengthening of fine dispersed alloy cementites,the size of the cementites is refined to about 50 nm and the hardness of the cutting tool ste... |
| Keywords: | 9CrV cutting tool steel secondary hardening at low temperature ultra-hardening alloy cementite |
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