| High temperature oxidation resistance of plasma sprayed NiCrAl＋（ZrO2＋Y2O3） gradated coating on stainless steel surface |
| |
| 作者姓名： | 陈飞 周海 吕涛 |
| |
| 作者单位： | [1]College of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China [2]School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
| |
| 基金项目： | Project（20061D0500500151） supported by Beijing Excellent Talent Nurture and Sponsor program; Project supported by Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality |
| |
| 摘 要： | The plasma sprayed gradated coating with the bottom layer of NiCrA1 and the top layer of （ZrO2＋Y2O3） was prepared by the plasma spraying technique. The phase structure and morphology of the gradated coating were analyzed by means of X-ray diffractometry （XRD） and scanning electron microscopy （SEM）. The high temperature oxidation resistance of the plasma sprayed samples at 800℃ was investigated. The oxidation kinetics curve was obtained. The results show that the thickness of gradated coating is about 410 μm. The plasma sprayed gradated coating on stainless steel surface can improve the high temperature oxidation resistance of stainless steel. The oxidation rate of stainless steel is less than that of plasma sprayed gradated coating. The oxidation film of plasma sprayed sample is very dense and is not easily exfoliated. The dense oxidation film prevents the stainless steel from more oxidation.
|
| 关 键 词： | 不锈钢 等离子体溅射法 涂层性能 高温抗氧化性 镍铬铝合金 氧化锆 氧化钇 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
| 本文献已被 维普 等数据库收录！ |
