| MCrAlY涂层高温氧化界面扩散行为研究进展 |
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| 引用本文： | 杨洪志,邹俭鹏,石倩,林松盛,代明江,王迪.MCrAlY涂层高温氧化界面扩散行为研究进展[J].稀有金属材料与工程,2020,49(7):2240-2249. |
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| 作者姓名： | 杨洪志 邹俭鹏 石倩 林松盛 代明江 王迪 |
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| 作者单位： | 中南大学,中南大学,广东省新材料研究所,广东省新材料研究所,广东省新材料研究所,广东省新材料研究所 |
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| 摘 要： | MCrAlY涂层在保护基体高温氧化和腐蚀方面发挥着重要作用，可在基体表面形成致密连续的氧化层，阻止阳离子和氧的扩散。随着氧化铝层的生长，导致涂层/氧化层界面处铝浓度降低，抑制了连续的Al2O3层的生长，导致混合氧化物和裂缝以及空隙的形成，使得涂层过早失效。在涂层和基体界面，真空热处理提高了界面的结合强度，改善了涂层与基体的粘附性。然而在高温下的界面扩散过程将对基体产生有害的影响。基体的难熔强化元素，如Ti，W，Mo，可以扩散到涂层中。而且相互扩散过程可在基体形成二级反应区（SRZ），析出拓扑密堆相（TCP）相，如σ，μ和Laves相等，降低高温合金的高温疲劳寿命。在本文中，详细介绍了涂层/基体的界面扩散过程，以及总结了当前对界面扩散效应的理解以及对减少界面扩散所做的努力。
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| 关 键 词： | MCrAlY涂层，相互扩散过程，高温氧化行为，未来趋势 |
| 收稿时间： | 2019/3/29 0:00:00 |
| 修稿时间： | 2019/5/16 0:00:00 |
Recent Advances for Interface Diffusion Behavior in MCrAlY Coatings at Elevated Temperature Oxidation |
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| YANG Hong-zhi,ZOU Jian-peng,SHI Qian,LIN Song-sheng,DAI Ming-jiang and WANG Di.Recent Advances for Interface Diffusion Behavior in MCrAlY Coatings at Elevated Temperature Oxidation[J].Rare Metal Materials and Engineering,2020,49(7):2240-2249. |
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| Authors: | YANG Hong-zhi ZOU Jian-peng SHI Qian LIN Song-sheng DAI Ming-jiang and WANG Di |
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| Affiliation: | State Key Laboratory of Powder Metallurgy,Central South University;Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,Key Lab of Guangdong for Modern Surface Engineering Technology,State Key Laboratory of Powder Metallurgy,Central South University,Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,Key Lab of Guangdong for Modern Surface Engineering Technology,Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,Key Lab of Guangdong for Modern Surface Engineering Technology,Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,Key Lab of Guangdong for Modern Surface Engineering Technology,Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,Key Lab of Guangdong for Modern Surface Engineering Technology |
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| Abstract: | |
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| Keywords: | MCrAlY coatings interdiffusion process high temperature oxidation behavior future trend |
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