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Mechanical properties of aluminized CoCrAlY coatings in advanced gas turbine blades

机译：先进燃气轮机叶片中铝化CoCralY涂层的力学性能

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The microstructure/composition and mechanical properties (22-950 C) in aluminized CoCrAlY coatings of advanced gas turbine blades have been examined using scanning Auger microprobe and a small punch (SP) testing method. Aluminized coatings were made of layered structure divided into four regimes: (1) Al enriched and Cr depleted region, (2) Al and Cr graded region, (3) fine grained microstructure with a mixture of Al and Cr enriched phases and (4) Ni/Co interdiffusion zone adjacent to the interface SP tests demonstrated strong dependence of the deformation and fracture behavior on the various coatings regimes. Coatings 1 and 2 showed higher microhardness and easier formation of brittle cracks in a wide temperature range, compared to coatings 3 and 4. The coating 3 had lower room temperature ductility and conversely higher elevated temperature ductility than the coating 4 due to a precipitous ductility increase above 730 C. The integrity of aluminized coatings while in-service is discussed in light of the variation in the low cycle fatigue life as well as the ductility in the layered structure.

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Kameda, J.; Bloomer, T. E.; Sugita, Y.; Ito, A.; Sakurai, S.;
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年度 1997
页码 1-14
总页数 14
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Mechanical Properties ; Microstructure ; Protective Coatings ; Turbine Blades ; Aluminium Alloys ; Chromium Alloys ; Cobalt Base Alloys ; Experimental Data ; Gas Turbines ; Yttrium Additions ; Meetings ; Tables(data);

机译：机械性能;微观结构;防护涂层;涡轮叶片;铝合金;铬合金;钴基合金;实验数据;燃气轮机;钇添加物;会议;表（数据）;

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专利

1. Oxidation/carbonization/Nitridation and in-service mechanical property degradation of CoCrAlY coatings in land-based gas turbine blades [J] . J. Kameda, T. E. Bloomer, S. Sakurai Journal of Thermal Spray Technology . 1999,第3期

机译：陆基燃气涡轮叶片中的共和线涂层的氧化/碳化/氮化和在职力学性质降解
2. In-Service Degradation of Metallurgical and Mechanical Properties of Aluminized Coatings and Substrates in Gas Turbine Blades [J] . Akihiro Ito, Kazuhiro Sugiyama, Nobuo Shinohara Materials transactions . 2002,第1期

机译：燃气轮机叶片中渗铝涂层和基体的冶金和机械性能在役降解
3. In-service degradation metallurgical and mechanical properties of aluminized coatings and substrates in gas turbine blades [J] . Akihiro Ito, Kazuhiro Sugiyama, Nobuo Shinohara, Materials transactions . 2002,第1期

机译：燃气轮机叶片中铝涂层和底材的在役降解冶金和机械性能
4. In-service mechanical property degradation of CoCrAlY coatings in land based gas turbine blades [C] . J. Kameda, T. E. Bloomer, S. Sakurai International Thermal Spray Conference . 1998

机译：陆地燃气轮机叶片中共和涂层的在职机械性能降解
5. Ultrasonic characterization of a platinum aluminide coating on a gas turbine blade [D] . MacQuarrie, John 1991

机译：燃气轮机叶片上铝化铂涂层的超声表征
6. The Role of Orientation and Temperature on the Mechanical Properties of a 20 Years Old Wind Turbine Blade GFR Composite [O] . Mohamed M. Z. Ahmed, Bandar Alzahrani, Nabil Jouini, 2021

机译：定向和温度对20岁风力涡轮机叶片GFR复合材料的机械性能的作用
7. Mechanical properties of aluminized CoCrAlY coatings in advanced gas turbine blades [O] . Kameda, J., Bloomer, T.E., Sugita, Y., 1997

机译：先进燃气轮机叶片中铝化CoCralY涂层的力学性能
8. Mechanical properties of aluminized CoCrAlY coatings in advanced gas turbine blades [R] . Kameda, J. , Bloomer, T. E. , Sugita, Y. , 1997

机译：先进燃气轮机叶片中铝化CoCralY涂层的力学性能

Mechanical properties of aluminized CoCrAlY coatings in advanced gas turbine blades

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