Evaluation of ductile–brittle transition temperature (DBTT) of aluminide bond coats by micro-tensile test method

Evaluation of ductile–brittle transition temperature (DBTT) of aluminide bond coats by micro-tensile test method

A method has been suggested to accurately determine the DBTT of diffusion aluminide bond coats. Micro-tensile testing of free-standing coating samples has been carried out. The DBTT was determined based on the variation of plastic strain-to-fracture with temperature. The positive features of this me...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2010-10, Vol.527 (26), p.7147-7150
Hauptverfasser: Alam, Md. Zafir, Chatterjee, D., Kamat, S.V., Jayaram, V., Das, D.K.
Format: Artikel
Sprache:eng
Schlagworte:
Aerospace materials
Aluminides
Applied sciences
Bond coat
Bonding
Coating
Diffusion
Diffusion coating
Diffusion welding
Ductile–brittle transition temperature
Exact sciences and technology
Fractures
Intermetallics
Joining, thermal cutting: metallurgical aspects
Mechanical properties
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metallic coatings
Metals. Metallurgy
Micro-tensile test
Microstructure
Production techniques
Pt-aluminide
Surface treatment
Transition temperature
Welding
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Zusammenfassung:A method has been suggested to accurately determine the DBTT of diffusion aluminide bond coats. Micro-tensile testing of free-standing coating samples has been carried out. The DBTT was determined based on the variation of plastic strain-to-fracture with temperature. The positive features of this method over the previously reported techniques are highlighted.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2010.07.059