Preparation and high temperature properties of mechanical attrition-enhanced aluminide coatings on TiAl alloy

Wei Wei Chen; Ye Dong He

Preparation and high temperature properties of mechanical attrition-enhanced aluminide coatings on TiAl alloy

Wei Wei Chen^*, Ye Dong He

^*此作品的通讯作者

University of Science and Technology Beijing

科研成果: 期刊稿件 › 文章 › 同行评审

6 引用（Scopus）

摘要

The aluminide coatings were synthesized by mechanical attrition-enhanced pack cementation. A compact and uniform aluminide coating with thickness of 30 μm formed after processing at 600°C for 150 min. The elements of Al and Ti are uniformly distributed in the coating. XRD analysis indicates that the phase of the aluminide coating is Al3Ti. After oxidation at 900°C for 300 h, a continuous Al₂O₃ scale formed on the surface of the aluminide coating, revealing the good oxidation and spallation resistance. In contrast, a multilayered oxide scale is observed on the surface of the blank TiAl specimen, and the oxide scale is mainly composed of Al₂O₃ and TiO₂, reflecting the relatively poor high-temperature properties.

源语言	英语
页（从-至）	138-142
页数	5
期刊	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
卷	32
期	6
出版状态	已出版 - 6月 2011
已对外发布	是

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title = "Preparation and high temperature properties of mechanical attrition-enhanced aluminide coatings on TiAl alloy",

abstract = "The aluminide coatings were synthesized by mechanical attrition-enhanced pack cementation. A compact and uniform aluminide coating with thickness of 30 μm formed after processing at 600°C for 150 min. The elements of Al and Ti are uniformly distributed in the coating. XRD analysis indicates that the phase of the aluminide coating is Al3Ti. After oxidation at 900°C for 300 h, a continuous Al2O3 scale formed on the surface of the aluminide coating, revealing the good oxidation and spallation resistance. In contrast, a multilayered oxide scale is observed on the surface of the blank TiAl specimen, and the oxide scale is mainly composed of Al2O3 and TiO2, reflecting the relatively poor high-temperature properties.",

keywords = "Aluminide coatings, High-temperature oxidation resistance, Mechanical attrition-enhanced pack cementation, TiAl alloy",

author = "Chen, {Wei Wei} and He, {Ye Dong}",

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T1 - Preparation and high temperature properties of mechanical attrition-enhanced aluminide coatings on TiAl alloy

AU - Chen, Wei Wei

AU - He, Ye Dong

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N2 - The aluminide coatings were synthesized by mechanical attrition-enhanced pack cementation. A compact and uniform aluminide coating with thickness of 30 μm formed after processing at 600°C for 150 min. The elements of Al and Ti are uniformly distributed in the coating. XRD analysis indicates that the phase of the aluminide coating is Al3Ti. After oxidation at 900°C for 300 h, a continuous Al2O3 scale formed on the surface of the aluminide coating, revealing the good oxidation and spallation resistance. In contrast, a multilayered oxide scale is observed on the surface of the blank TiAl specimen, and the oxide scale is mainly composed of Al2O3 and TiO2, reflecting the relatively poor high-temperature properties.

AB - The aluminide coatings were synthesized by mechanical attrition-enhanced pack cementation. A compact and uniform aluminide coating with thickness of 30 μm formed after processing at 600°C for 150 min. The elements of Al and Ti are uniformly distributed in the coating. XRD analysis indicates that the phase of the aluminide coating is Al3Ti. After oxidation at 900°C for 300 h, a continuous Al2O3 scale formed on the surface of the aluminide coating, revealing the good oxidation and spallation resistance. In contrast, a multilayered oxide scale is observed on the surface of the blank TiAl specimen, and the oxide scale is mainly composed of Al2O3 and TiO2, reflecting the relatively poor high-temperature properties.

KW - Aluminide coatings

KW - High-temperature oxidation resistance

KW - Mechanical attrition-enhanced pack cementation

KW - TiAl alloy

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JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

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Preparation and high temperature properties of mechanical attrition-enhanced aluminide coatings on TiAl alloy

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