TC4钛合金与多层TiN/Ti涂层的砂尘冲蚀损伤试验

曹鑫; 王冠; 何卫锋; 张翼飞; 何光宇; 杨竹芳

doi:10.13224/j.cnki.jasp.2016.09.022

TC4钛合金与多层TiN/Ti涂层的砂尘冲蚀损伤试验

doi: 10.13224/j.cnki.jasp.2016.09.022

空军工程大学航空航天工程学院等离子体动力学重点实验室, 西安 710038

基金项目:

国家自然科学基金（51405506）；陕西省科学技术研究发展计划（2014K08-26）；陕西省科技统筹创新工程计划（2015KTCQ01-72）

详细信息

作者简介:
曹鑫(1991-),男,江苏泰州人,硕士生,主要从事航空发动机压气机叶片抗冲蚀涂层研究.

通讯作者:
何卫锋(1977-),男,湖南益阳人,教授、硕士生导师,博士,主要从事航空发动机结构疲劳强度与表面工程技术研究.E-mail:hehe_coco@163.com

中图分类号: V252
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- 被引次数: 0
出版历程
- 收稿日期: 2015-09-14
- 刊出日期: 2016-09-28

Sand erosion damage test on TC4 titanium alloy and TiN/Ti multilayer coating

Science and Technology on Plasma Dynamics Laboratory, Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi'an 710038, China

摘要

摘要: 建了砂尘冲蚀试验系统，采用粒子成像测速方法获得了气体压力和砂尘速度之间的关系，并在砂尘质量浓度为28.91g/m³，速度为80m/s，冲蚀角度为30°的条件下，对TC4钛合金和多层TiN/Ti涂层进行了冲蚀试验.结果表明：TC4钛合金抗冲蚀损伤能力较差，平均质量损失率达0.7mg/min.多层TiN/Ti涂层可承受砂尘冲蚀200min以上，且TiN/Ti调制比为1：3涂层的抗冲蚀能力优于调制比为1：1的涂层.砂尘粒子垂直冲击速度分量引起的微区剥落是涂层冲蚀损伤的主要原因，增加多层涂层韧性是提高其抗冲蚀性能的关键.
- 钛合金 /
- 砂尘冲蚀 /
- 损伤 /
- 多层TiN/Ti涂层 /
- 质量损失率
Abstract: A sand erosion test system was set up. The relationship between gas pressure and sand particle velocity was obtained by using particle image velocimetry method, and the erosion performance of TC4 titanium alloy and TiN/Ti multilayer coating was tested at the condition of sand concentration 28.91g/m³, sand particle velocity 80m/s, and impact angle 30°. The results show that, the anti-erosion performance of TC4 titanium alloy is poor with average mass loss rate about 0.7mg/min. TiN/Ti multilayer coatings can withstand sand erosion more than 200 minutes. TiN/Ti multilayer coating with modulation ratio of 1:3 is superior to that with the modulation ratio of 1:1 on the anti-erosion performance. Micro-spalling caused by the vertical impact component of sand particle velocity is the main reason for erosion damage of coating. Therefore, the key to improve anti-erosion performance of multilayer coating is enhancing the toughness.
- titanium alloy /
- sand erosion /
- damage /
- TiN/Ti multilayer coating /
- mass loss rate

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