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| 铝对Cr8WMo2V2SiNb冷作模具钢组织及力学性能的影响 | |
| 引用本文： | 马党参,迟宏宵,雍岐龙,吴立志,张占普.铝对Cr8WMo2V2SiNb冷作模具钢组织及力学性能的影响[J].钢铁,2010,45(6). |
| 作者姓名： | 马党参 迟宏宵 雍岐龙 吴立志 张占普 |
| 作者单位： | 1. 钢铁研究总院结构材料研究所,北京,100081 2. 钢铁研究总院结构材料研究所,北京,100081;昆明理工大学材料与冶金工程学院,云南,昆明,650093 3. 河冶科技股份有限公司,河北,石家庄050031 |
| 基金项目： | 国家“十一五”科技支撑计划资助项目(2007BAE510B04) |
| 摘 要： | 采用金相、扫面电镜等分析手段,研究了铝对Cr8WMo2V2SiNb钢组织和力学性能的影响。研究结果表明:铝能够细化铸态组织;细化碳化物颗粒尺寸;提高临界点温度,使淬火组织中容易出现铁素体组织;细化奥氏体晶粒尺寸;促进残余奥氏体向马氏体转变,提高回火硬度;在韧性损失不大的情况下提高钢材的抗弯强度和耐磨性。 |
| 关 键 词： | 冷作模具钢 铝 热处理 显微组织 力学性能 |
Effect of Aluminum on Microstructure and Mechanical Properties of Cr8WMo2V2SiNb Steel |
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| MA Dang-shen,CHI Hong-xiao,YONG Qi-long,WU Li-zhi,ZHANG Zhan-pu.Effect of Aluminum on Microstructure and Mechanical Properties of Cr8WMo2V2SiNb Steel[J].Iron & Steel,2010,45(6). | |
| Authors: | MA Dang-shen CHI Hong-xiao YONG Qi-long WU Li-zhi ZHANG Zhan-pu |
| Affiliation: | MA Dang-shen1,CHI Hong-xiao1,2,YONG Qi-long1,WU Li-zhi3,ZHANG Zhan-pu3(1.Central Iron and Steel Research Institute,Beijing 100081,China,2.Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,Yunan,3.Heye Special Steel Co.,Ltd.,Shijiazhuang 050031,Hebei,China) |
| Abstract: | Effect of aluminum on microstructure and mechanical properties of Cr8WMo2V2SiNb steel was investigated by metallographic examination and SEM.The results show that aluminum can refine as-cast microstructure,carbides and grain size.Aluminum also can increase critical point while improving the appearance of ferrite in quenched structure.In addition,aluminum can improve the transformation of retained austenite to martensite and increases the tempered hardness.Moreover,aluminum improves the bending strength and ... |
| Keywords: | cold work die steel aluminum heat treatment microstructure mechanical property |
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