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

^*Corresponding author for this work

University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

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.

Original language	English
Pages (from-to)	138-142
Number of pages	5
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	32
Issue number	6
Publication status	Published - Jun 2011
Externally published	Yes

Keywords

Aluminide coatings
High-temperature oxidation resistance
Mechanical attrition-enhanced pack cementation
TiAl alloy

Cite this

@article{484eb0a57d564712bd247f1e3ba15019,

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\}",

year = "2011",

month = jun,

language = "English",

volume = "32",

pages = "138--142",

journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

issn = "1009-6264",

publisher = "Chinese Mechanical Engineering Society",

number = "6",

}

TY - JOUR

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

AU - Chen, Wei Wei

AU - He, Ye Dong

PY - 2011/6

Y1 - 2011/6

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

UR - https://www.scopus.com/pages/publications/79960146503

M3 - Article

AN - SCOPUS:79960146503

SN - 1009-6264

VL - 32

SP - 138

EP - 142

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

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

IS - 6

ER -

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

Abstract

Keywords

Other files and links

Fingerprint

Cite this