High-temperature performance of (Ni,Pt)Al coatings on second-generation Ni-base single-crystal superalloy at 1100 ℃: Effect of excess S impurities

Yu C. T.; Liu H.; Ullah A.; Bao Z. B.; Zhu S. L.; Wang F. H.

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High-temperature performance of (Ni,Pt)Al coatings on second-generation Ni-base single-crystal superalloy at 1100 ℃: Effect of excess S impurities

机译：第二代镍基单晶高温合金上（Ni，Pt）Al涂层的高温性能：1100℃：过量S杂质的影响

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摘要

Acidic and basic single-phase beta-(Ni,Pt)Al coatings were prepared by Pt electroplating (employing acidic and alkaline Pt-plating baths, respectively) and gaseous phase aluminizing. In both isothermal and cyclic oxidation tests at 1100 degrees C, the acidic (Ni,Pt)Al coating showed inferior oxidation resistance compared to the basic coating. The poorer oxidation performance and higher scale spallation tendency of the acidic (Ni,Pt)Al coating was attributed to the presence of excess S, which deteriorated oxide scale adherence by promoting the formation of pores and cracks under Al2O3 scale. The void formation mechanism and detrimental role of excess S in state-of-the-art Pt-modified aluminide coatings are discussed.

机译：酸性和碱性单相β-（Ni，Pt）Al涂层是通过Pt电镀（分别使用酸性和碱性Pt电镀液）和气相渗铝制备的。在1100摄氏度的等温和循环氧化测试中，与碱性涂层相比，酸性（Ni，Pt）Al涂层的抗氧化性较差。酸性（Ni，Pt）Al涂层的较差的氧化性能和更高的剥落趋势归因于过量的S的存在，这通过促进Al2O3氧化皮下的孔和裂纹的形成而降低了氧化皮的附着力。讨论了最新的Pt改性铝化物涂层中的空孔形成机理和过量S的有害作用。

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来源
《Corrosion science》 |2019年第10期|108115.1-108115.11|共11页
作者
Yu C. T.; Liu H.; Ullah A.; Bao Z. B.; Zhu S. L.; Wang F. H.;
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作者单位

Chinese Acad Sci Inst Met Res 62 Wencui Rd Shenyang 110016 Liaoning Peoples R China|Univ Sci & Technol China Sch Mat Sci & Engn 72 Wenhua Rd Shenyang 110016 Liaoning Peoples R China;

Chinese Acad Sci Inst Met Res 62 Wencui Rd Shenyang 110016 Liaoning Peoples R China;

Chinese Acad Sci Inst Met Res 62 Wencui Rd Shenyang 110016 Liaoning Peoples R China|Northeastern Univ Shenyang Natl Lab Mat Sci 3 Wenhua Rd Shenyang 110819 Liaoning Peoples R China;

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正文语种 eng
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关键词
Pt-modified aluminide coating; S impurity; Oxidation; Thermally grown oxide; Spallation;

机译：铂改性铝化物涂层;S杂质;氧化;热生长的氧化物;散裂;

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专利

1. High-temperature performance of (Ni,Pt)Al coatings on second-generation Ni-base single-crystal superalloy at 1100 ℃: Effect of excess S impurities [J] . Yu C. T., Liu H., Ullah A., Corrosion science . 2019,第OCTa期

机译：第二代镍基单晶高温合金上（Ni，Pt）Al涂层的高温性能：1100℃：过量S杂质的影响
2. Oxidation behavior of a single-crystal Ni-base superalloy in air at 900, 1000 and 1100 °C [J] . L. Huang, X. F. Sun, H. R. Guan, Tribology Letters . 2007,第1期

机译：900、1000和1100°C的空气中单晶Ni基高温合金的氧化行为
3. Oxidation behavior of a single-crystal Ni-base superalloy in air at 900, 1000 and 1100℃ [J] . L. Huang, X. F. Sun, H. R. Guan, Tribology letters . 2006,第1期

机译：900、1000和1100℃空气中单晶Ni基高温合金的氧化行为
4. CYCLIC OXIDATION BEHAVIOR OF THE ALUMINIDE COATINGON THE Ni-BASE SUPERALLOY INCONEL 718 AT 1100 ℃ [C] . Jyh-Wei Lee, Hong-Liang Chien, Chaur-Jeng Wang International Corrosion Congress: Abstracts . 2005

机译：1100℃Ni基高温合金INCONEL 718上铝涂层的循环氧化行为。
5. Design of Ni-base superalloys and MCrAlY coatings from first-principles and computational thermodynamics [D] . Liu, Xuan 2015

机译：基于第一性原理和计算热力学的镍基高温合金和MCrAlY涂层设计
6. Experimental and Numerical Studies on Recrystallization Behavior of Single-Crystal Ni-Base Superalloy [O] . Runnan Wang, Qingyan Xu, Xiufang Gong, 2018

机译：单晶镍基高温合金再结晶行为的实验与数值研究
7. Cold Spray MCrAlY Coatings on Single-Crystal Ni-Base Superalloys: A Substrate Perspective [O] . Deliang Guo, Bertrand Jodoin, Linruo Zhao 2021

机译：单晶Ni-Base高温合金的冷喷雾麦克利涂层：基板透视
8. Constitutive Model for Anisotropic Creep Behaviors of Single-Crystal Ni-Base Superalloys in the Low-Temperature, High-Stress Regime (Postprint). [R] . Woodward, C., Dimiduk, D. M., Uchic, M. D., 2012

机译：低温高应力状态下单晶Ni基高温合金各向异性蠕变行为的本构模型（后印刷）。

High-temperature performance of (Ni,Pt)Al coatings on second-generation Ni-base single-crystal superalloy at 1100 ℃: Effect of excess S impurities

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