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Study of Brittle-to-ductile-transition in Pt-aluminide bond coat using micro-tensile testing method

Alam, Md Zafir and Srivathsa, B and Kamat, SV and Jayaram, V and Das, DK (2011) Study of Brittle-to-ductile-transition in Pt-aluminide bond coat using micro-tensile testing method. In: Transactions of the Indian Institute of Metals, 64 (1-2). pp. 57-61.

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Abstract

The Brittle-to-ductile-transition-temperature (BDTT) of free-standing Pt-aluminide (PtAl) coating specimens, i.e. stand-alone coating specimens without any substrate, was determined by micro-tensile testing technique. The effect of Pt content, expressed in terms of the thickness of initial electro-deposited Pt layer, on the BDTT of the coating has been evaluated and an empirical correlation drawn. Increase in the electrodeposited Pt layer thickness from nil to 10 mu m was found to cause an increase in the BDTT of the coating by about 100 degrees C.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Keywords: brittle-ductile-transition-temperature (BDTT);Pt-aluminide coatings;micro-tensile testing;dislocation climb
Department/Centre: Others
Date Deposited: 21 Sep 2011 05:29
Last Modified: 21 Sep 2011 05:29
URI: http://eprints.iisc.ernet.in/id/eprint/40560

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