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Strain-controlled fatigue in B-modified Ti-6Al-4V alloys
Department of Materials Engineering, Indian Institute of Science, Bangalore.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-6613-7876
Gas Turbine Research Establishment, DRDO, Bangalore.
International Centre for Materials Science, JNCASR, Jakkur PO, Bangalore.
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2013 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 69, no 9, p. 698-701Article in journal (Refereed) Published
Abstract [en]

The strain-controlled fatigue behaviour of Ti-6Al-4V alloy with up to 0.11 wt.% B addition was investigated. Results show significant softening when the strain amplitudes, ΔεT/2, are ⩾0.75%. B addition was found to improve the fatigue life for ΔεT/2 ⩽ 0.75% as it corresponds to the elastic regime and hence strength dominated. At ΔεT/2 = 1%, in contrast, the base alloy exhibits higher life as TiB particle cracking due to strain incompatibility renders easy crack nucleation in the B-modified alloys.

Place, publisher, year, edition, pages
2013. Vol. 69, no 9, p. 698-701
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-2400DOI: 10.1016/j.scriptamat.2013.08.008ISI: 000325194500014Scopus ID: 2-s2.0-84884286655Local ID: 00499127-d967-4e58-957f-bc8a71182cdfOAI: oai:DiVA.org:ltu-2400DiVA, id: diva2:975252
Note
Validerad; 2013; 20130816 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Gaddam, RaghuveerPederson, Robert

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