| 激光熔覆原位合成TiC/Al陶瓷基复合涂层增强Ti6Al4V研究 |
| |
| 引用本文： | 王建宏,白培康,李玉新. 激光熔覆原位合成TiC/Al陶瓷基复合涂层增强Ti6Al4V研究[J]. 稀有金属材料与工程, 2011, 0(Z1): 496-498 |
| |
| 作者姓名： | 王建宏 白培康 李玉新 |
| |
| 作者单位： | 中北大学; |
| |
| 基金项目： | 国家自然科学基金资助项目(50975264); 山西省研究生立项优秀创新项目(20093015) |
| |
| 摘 要： | 采用Ti-C-Al体系激光点火自蔓延合成TiC/Al材料的同时,在Ti6Al4V钛合金表面形成均匀厚度的涂层。实验所用设备为2kWNd:YAG脉冲固体激光器;原料中钛碳原子比1:1,铝含量范围10%~40%(质量分数)。原料中的铝含量对原位合成的TiC颗粒形态和大小影响较大,通过实验确定了原料中合适的铝含量。利用扫描电镜对涂层与基体结合界面微观结构进行表征,测试涂层的显微硬度和耐磨性。结果表明,涂层和基体有良好的冶金结合;TiC颗粒在涂层表面处主要以树枝晶状存在,而在涂层与基体连接处主要为近球状晶粒;涂层显微硬度可达到8000MPa(HV0.5),约为基材的2~3倍。
|
| 关 键 词： | 激光熔覆 原位合成TiC 钛合金 微观结构 显微硬度 |
Laser Surface Coating of TiC/Al Ceramic Matrix Composite on Ti6Al4V Alloy |
| |
| Wang Jianhong,Bai Peikang,Li Yuxin. Laser Surface Coating of TiC/Al Ceramic Matrix Composite on Ti6Al4V Alloy[J]. Rare Metal Materials and Engineering, 2011, 0(Z1): 496-498 |
| |
| Authors: | Wang Jianhong Bai Peikang Li Yuxin |
| |
| Affiliation: | Wang Jianhong,Bai Peikang,Li Yuxin (North University of China,Taiyuan 030051,China) |
| |
| Abstract: | Laser surface cladding of Ti6Al4V alloy by Ti+C+Al powders (titanium and carbon powders with an atomic ratio of 1:1 were mixed with 10wt%-40wt% aluminum powders) was investigated using a 2 kW Nd:YAG pulsed laser. TiC particles were in situ formed mainly during the solidification and the shapes and sizes of TiC particles were diversiform according to different contents of aluminum powders in the Ti-C-Al system. The configurations of TiC particles is mainly dendrite and near spherical existing in the near sur... |
| |
| Keywords: | laser cladding in-situ TiC titanium alloy microstructure microhardness |
| 本文献已被 CNKI 等数据库收录！ |
