| Ni-WC表面合金化45钢基复合材料的组织观察 |
| |
| 引用本文： | 郭长庆,王琦环,程军.Ni-WC表面合金化45钢基复合材料的组织观察[J].铸造技术,2011,32(3). |
| |
| 作者姓名： | 郭长庆 王琦环 程军 |
| |
| 作者单位： | 内蒙古科技大学科技中心,内蒙古,包头,014010 |
| |
| 摘 要： | 以Ni-WC粉末为主要原料制成涂料涂覆在EPS泡沫塑料模样的表面上,采用V-EPC真空消失模铸造方法浇注45钢液,制备出Ni-WC表面合金化45钢基复合材料.应用光学显微镜、SEM,EDS和XRD观察和分析了复合材料的显微组织.结果表明,复合材料由表面复合层、中间过渡层和内部基体3个区域组成.在表面复合层中,Ni-WC颗粒已全部发生分解,其组织由少童的细小条状的富钨碳化物、大量的粗大网状碳化物和树枝晶基体组成;过渡层在靠近表面复合层一侧有一条全部由极细珠光体组成的窄带,而在靠近基体区域一侧组织由块状的铁素体和珠光体组成,并且在这些晶粒内部和晶界上都可以观察到有碳化物析出;基体区域组织形貌与常规45钢相似,但组织中珠光体含量明显高一些.
|
| 关 键 词： | Ni-WC表面合金化 45钢 复合材料 组织观察 |
Observation of Microstructures of Ni-WC Alloyed 45 Cast Steel Matrix Surface Composites |
| |
| GUO Chang-qing,WANG Qi-huan,CHENG Jun.Observation of Microstructures of Ni-WC Alloyed 45 Cast Steel Matrix Surface Composites[J].Foundry Technology,2011,32(3). |
| |
| Authors: | GUO Chang-qing WANG Qi-huan CHENG Jun |
| |
| Affiliation: | GUO Chang-qing,WANG Qi-huan,CHENG Jun(Scientific and Technological Centre of The Inner Mongolia University of Science and Technology,Baotou 014010,China) |
| |
| Abstract: | The EPS samples that are mainly consisted of Ni-WC powders are prepared.The samples are then cast with 45 cast steel using V-EPC casting infiltration technique,forming the Ni-WC alloyed 45 cast steel matrix surface composites.The microstructures are observed and analyzed using optical microscope,SEM,EDS and XRD.The results show that the composites from surface to core are obviously consisted of three different microstructural zones,the top alloyed surface layer,the transitional layer and the matrix zone.The... |
| |
| Keywords: | V-EPC |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
