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中文摘要: β 相影响着 MCrAlY 涂层的抗氧化性， 改善涂层中 β 相含量可以通过添加特定元素实现。 Ta 被认为是可以
用来改善涂层抗氧化性的重要元素之一。 本研究模拟考察了不同 Ta 含量对 MCrAlY 涂层相组分的影响， 并在此
基础上， 开展了 1000℃恒温氧化实验。 研究结果表明， 随着 Ta 含量的增加， 涂层的贫铝区厚度减小， 剩余的 β
含量增加， 其分布也更靠近涂层表面； 但较高的 Ta 含量加剧了 Ta 元素在涂层中的偏析。 综合考虑， 3%Ta 含量
的 MCrAlY 涂层抗氧化性最好。 另外， 本文还着重研究了优选 Ta 含量的 MCrAlY 的氧化过程。
Abstract:The β phase affects the oxidation resistance of the MCrAlY coating, which can be improved by adding
specific elements. Ta is considered to be one of the important elements that can be used to improve the oxidation
resistance of the coating. This study simulates and investigates the effect of different Ta content on the phase
composition of MCrAlY coating. And thus, a isothermal oxidation experiment was carried out at 1000℃. The
results show that, the thickness of the aluminum-depleted zone of the coating decreases and the remaining β phase
content increases with the increase of Ta content. The distribution of β phase is also closer to the coating surface.
However, the higher Ta content intensifies the segregation of Ta element in the coating. The MCrAlY coating with
3% Ta content exhibits best oxidation resistance. In addition, this paper also focuses on the oxidation process of
MCrAlY coating with a preferred Ta content.
keywords: MCrAlY Oxidation resistant Stability of β phase
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| Xiaofeng Miao | Aecc South Industry Co., Ltd. |
| Haitao Yun | Aecc South Industry Co., Ltd. |
| Zhaoran Zheng | BGRIMM Technology Group |
引用文本：
苗小锋,云海涛,郑兆然.Ta 含量对 MCrAlY 抗氧化性的影响[J].热喷涂技术,2020,12(2):47-51.
苗小锋,云海涛,郑兆然.Ta 含量对 MCrAlY 抗氧化性的影响[J].热喷涂技术,2020,12(2):47-51.