| Ti6Al4V钛合金表面Al2O3颗粒改性微弧氧化涂层制备及性能 |
| |
| 引用本文： | 李洪,宋智辉. Ti6Al4V钛合金表面Al2O3颗粒改性微弧氧化涂层制备及性能[J]. 稀有金属材料与工程, 2020, 49(3): 755-760 |
| |
| 作者姓名： | 李洪 宋智辉 |
| |
| 作者单位： | 广东省新材料研究所,广东省新材料研究所 |
| |
| 基金项目： | 2017广东省科学院科技创新发展专项（2017GDASCX-0844，2017GDASCX-0111），2017广东省科学院院士基金（2017GDASCX-0202） |
| |
| 摘 要： | 微弧氧化技术是一门新的表面处理技术,在很多领域有着广泛的应用前景,但其结构受限于电解液成分。本文通过在磷酸盐电解液中加入Al2O3陶瓷颗粒,使得在Ti6Al4V钛合金表面的微弧氧化涂层结构和性能得到改性。涂层的结构和性能通过扫描电镜和XRD衍射仪进行表征和测试,涂层的抗高温氧化性能和热震性能通过高温热循环氧化试验和热震试验进行测试。结果表明,通过在电解液中添加Al2O3陶瓷颗粒,涂层由Al2TiO5 and TiO2组成,涂层更为致密,表现出更为优异的抗高温氧化和热震性能。电解液中游动的Al2O3陶瓷颗粒在微弧氧化过程中被吸入到样品表面并进入涂层,涂层的结构和性能得到改性。
|
| 关 键 词： | Ti6Al4V钛合金 微弧氧化 Al2O3颗粒 抗氧化性能 热震性能 |
| 收稿时间： | 2018-10-26 |
| 修稿时间： | 2018-10-31 |
Preparation and property of a modified micro-arc oxidation coating using Al2O3 particles on Ti6Al4V |
| |
| Li Hong and Song Zhihui. Preparation and property of a modified micro-arc oxidation coating using Al2O3 particles on Ti6Al4V[J]. Rare Metal Materials and Engineering, 2020, 49(3): 755-760 |
| |
| Authors: | Li Hong and Song Zhihui |
| |
| Affiliation: | Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,the Key Lab of Guangdong for Modern Surface Engineering Technology,Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,the Key Lab of Guangdong for Modern Surface Engineering Technology;School of Material and Energy Guangdong University of Technology |
| |
| Abstract: | Micro-arc oxidation is a new surface treatment method, but the structure of the micro-arc oxidation coating is limited to the electrolyte composition. In this paper the micro-arc oxidation coating on Ti6Al4V alloy was modified by addition of micro- Al2O3 particles to a sodium phosphate solution. The coating structure and phase was characterized by scanning electron microscopy and X-ray diffraction, and the oxidation resistance and thermal shock properties of the coating were investigated. Results showed that a coating denser than the original coating was produced. This new coating was composed of Al2TiO5 and TiO2. The oxidation resistance and thermal shock property of the coating improved with addition of Al2O3 particles to the electrolyte relative to the sample prepared without the particles in the electrolyte. Moving Al2O3 particles were adsorbed on the coating surface and penetrated through it. As a result, the phase structure and properties of the original coating were modified. |
| |
| Keywords: | Ti6Al4V micro-arc oxidation Al2O3 particle oxidation resistance thermal shock property |
|
| 点击此处可从《稀有金属材料与工程》浏览原始摘要信息 |
|
点击此处可从《稀有金属材料与工程》下载全文 |
