Presentation Details
The influence of high selectivity orientation on the thermal corrosion resistance of Cr2AlC MAX phase
ID：128
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Updated Time：2024-10-14 11:04:54
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Oral Presentation
Start Time：2024-10-20 11:55（Asia/Shanghai）
Duration：15min
Session：S2 Thin Film Technologies and Applications »
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Abstract
通过HiPIMS和同步脉冲偏压技术，制备出具有高择优取向（1 1 -2 0）的Cr2AlC MAX相涂层，并对比等轴晶Cr2AlC MAX相涂层，对其600 ℃盐雾环境下的热腐蚀行为与腐蚀机制进行研究。研究表明，具有高择优取向的Cr2AlC MAX相涂层比等轴晶涂层具有更好的抗热腐蚀性能，具备独特的腐蚀机制。这是因为其高择优取向（1 1 -2 0）使其具备了优秀的Al扩散能力，在表面形成连续Al2O3的同时，涂层内部Al含量动态均匀，不会在氧化层下方出现严重的贫Al区，这种贫Al区——即氧化亚层的CrxCy氧化产物，往往会导致表面Al2O3氧化层的生长受到极大限制，这种腐蚀机制的改变使得高择优取向涂层具备远超于等轴晶涂层的抗盐雾腐蚀性能。同时，在盐雾环境下，Cl离子极易深入等轴晶结构涂层内部，并在晶界处产生富集，从而使其腐蚀情况加剧，而高择优结构涂层并未表现出这一特点，结果表明，Cl离子难以扩散进入高择优结构涂层内部。
Keywords
MAX,Cr2AlC,盐雾,热腐蚀,晶体结构
Speaker
Shenghao Zhou
学生 Ningbo Institute of Technical Materials and Engineering(CAS), ChinaSubmission Author
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Important Date
-
Conference Date
Oct 18
2024
toOct 20
2024
-
Oct 17 2024
Contribution Submission Deadline
-
Oct 20 2024
Registration deadline
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Nov 18 2024
Draft paper submission deadline
Sponsored By
Chinese Mechanical Engineering Society – Surface Engineering Institution (CMES)
Organized By
Dalian University of Technology (DUT)
Shandong University of Technology (SDUT)
Shandong University of Technology (SDUT)
Contact Information
- 蒋超
- ab******@126.com
- +86********
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The 8th International Conference on Surface Engineering -
2016-10-22 China 成都市
7th International Conference on Surface Engineering -
2013-11-18 South Korea
ICSE 2013
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