| 真空熔覆镍基合金涂层中碳化钨颗粒转变行为 |
| |
| 引用本文： | 王智慧,杨爱弟,贺定勇,蒋建敏. 真空熔覆镍基合金涂层中碳化钨颗粒转变行为[J]. 稀有金属材料与工程, 2008, 37(10) |
| |
| 作者姓名： | 王智慧 杨爱弟 贺定勇 蒋建敏 |
| |
| 作者单位： | 北京工业大学,北京,100022 |
| |
| 摘 要： | 以Ni60A自熔合金粉末和镍包碳化钨粉末为原料,利用真空熔覆方法在低碳钢表面制备了镍基碳化钨耐磨复合涂层.研究了真空工艺条件下,镍基合金中碳化钨颗粒的转变行为.试验结果表明,高温下保温时间延长对镍基碳化钨复合涂层的组织影响很大,WC颗粒在镍基体中发生转变,转变的主要特征是WC硬质相边缘转变为针状相,随着高温加热时间的延长,针状相组织面积扩大,转变为针状团簇结构,最终转变为粒状相.结合XRD分析,粒状相为具有复杂立方结构的Fe6W6C相,这种碳化物,显著降低了涂层的硬度.
|
| 关 键 词： | 真空熔覆 碳化钨 转变 涂层 显微组织 |
The Transformation of WC in Ni-Based Alloy Coating by Vacuum Melting |
| |
| Wang Zhihui,Yang Aidi,He Dingyong,Jiang Jianmin. The Transformation of WC in Ni-Based Alloy Coating by Vacuum Melting[J]. Rare Metal Materials and Engineering, 2008, 37(10) |
| |
| Authors: | Wang Zhihui Yang Aidi He Dingyong Jiang Jianmin |
| |
| Affiliation: | Wang Zhihui,Yang Aidi,He Dingyong,Jiang Jianmin (Beijing University of Technology,Beijing 100022,China) |
| |
| Abstract: | Ni-based composite coatings reinforced with WC particulates were fabricated on Q235 steel by vacuum melting. The powders of Ni60A alloy and WC were used as raw materials. The transformation of WC particulates under the vacuum brazed processing condition was studied Results show that prolonging the melting time has great effect on the microstructure of composite coatings at high temperature and WC transformation occurs. The dominant characteristics are that it transforms into needle phase on the verge of har... |
| |
| Keywords: | vacuum brazing WC transformation coating microstructure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
