| 摘要: |
| 在尿素、硝酸铵和蒸馏水组成的电解液体系中，利用液相等离子体电解渗技术在TC4钛合金表面制备碳/氮共渗层，采用SEM、XRD和摩擦磨损试验分析渗层的表面形貌、相结构和磨损性能。试验结果表明：等离子碳氮共渗层主要由TiCN相、TiO相和Ti相组成，工作电压和占空比的提高可以显著增加渗层厚度及硬度，降低渗层的平均磨损率。 |
| 关键词: TiCN 耐磨性 碳氮共渗 |
| DOI： |
| 分类号: |
| 基金项目:陕西省科技计划项目（2006KG03） |
|
| The Effect of Voltage and Duty Cycle on the Micro–structure and Performance of Plasma Carbonitriding Layer on the Surface of TC4 Alloy |
|
SHEN Shi–da1, XIE Fa–qin1, HU Zong–chun1, WU Xiang–qing1, LI Rong21,2
|
|
1. School of aeronautics, Northwestern Polytechnical University;2. Western Metal Materials CO. LTD
|
| Abstract: |
| The film was made on TC4 alloy surface by plasma carbonitriding technique in electrolyte composed of ammonium nitrate, urea and distilled water. The influence of electric voltage and duty cycle on the film’s hardness, thickness, phase composition, micro–structure and wear resistance was studied. The result showed that the film was composed of TiCN phase, TiO phase and Ti phase; the fabricated film’s hardness and thickness were improved and the average abrasion rate was reduced along with the increase of electric voltage and duty cycle. |
| Key words: TiCN wear resistance carbonitriding |
