| Effect of temperature on microstructure ofmolybdenum diffusion coating on titanium substrate |
| |
| 引用本文： | 李佳,夏长清,古一. Effect of temperature on microstructure ofmolybdenum diffusion coating on titanium substrate[J]. 中南工业大学学报(英文版), 2004, 11(1): 15-18. DOI: 10.1007/s11771-004-0003-8 |
| |
| 作者姓名： | 李佳 夏长清 古一 |
| |
| 作者单位： | SchoolofMaterialsScienceandEngineering,CentralSouthUniversity,Changsha410083,China |
| |
| 摘 要： | The halide-activated pack cementation process was used to form molybdenum diffusion coating on titanium substrate. The morphology, structure, elements diffusion distribution and microhardness of the coatings formed at different diffusion temperatures were studied. The results indicate that the coating is made up of deposition layer and diffusion layer, and the surface roughness of specimens is increased after diffusion. In the diffusion layer, the major phases are Mo and β-Ti phase with addition of α′-Ti phase and α″-Ti phase. And the phase composition of Mo →β→α″→α′ is formed for different Mo contents in the diffusion layer from outside to inside. The diffusion of Ti element is very obvious as well as Mo element. With increasing the diffusion temperature, the thickness of diffusion layer is increased rapidly, and the microhardness is changed more smoothly with diffusion depth, which shows the same distribution rules as the Mo content.
|
| 关 键 词： | 漫射 钛 粘固 钼 金属结构 显微结构 |
| 收稿时间： | 2003-09-17 |
| 修稿时间： | 2003-11-12 |
Effect of temperature on microstructure of molybdenum diffusion coating on titanium substrate |
| |
| Li Jia , Xia Chang-qing and Gu Yi. Effect of temperature on microstructure of molybdenum diffusion coating on titanium substrate[J]. Journal of Central South University of Technology, 2004, 11(1): 15-18. DOI: 10.1007/s11771-004-0003-8 |
| |
| Authors: | Li Jia Xia Chang-qing Gu Yi |
| |
| Affiliation: | (1) School of Materials Science and Engineering, Central South University, 410083 Changsha, China |
| |
| Abstract: | The halide-activated pack cementation process was used to form molybdenum diffusion coating on titanium substrate. The morphology, structure, elements diffusion distribution and microhardness of the coatings formed at different diffusion temperatures were studied. The results indicate that the coating is made up of deposition layer and diffusion layer, and the surface roughness of specimens is increased after diffusion. In the diffusion layer, the major phases are Mo and β-Ti phase with addition of α′-Ti phase and α″-Ti phase. And the phase composition of Mo →β→β″→β′ is formed for different Mo contents in the diffusion layer from outside to inside. The diffusion of Ti element is very obvious as well as Mo element. With increasing the diffusion temperature, the thickness of diffusion layer is increased rapidly, and the microhardness is changed more smoothly with diffusion depth, which shows the same distribution rules as the Mo content. |
| |
| Keywords: | Mo diffusion coating morphology microstructure diffusion distribution |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
