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
Publication:	Transactions of the Indian Institute of Metals
Publisher:	Springer
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:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	21 Sep 2011 05:29
Last Modified:	06 Oct 2018 13:36
URI:	http://eprints.iisc.ac.in/id/eprint/40560

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