Development of a new PM titanium alloy for improved processability

Margam, Chandrasekaran, Xia, Z.A., Kiong, L.K., Yarlagadda, Prasad K., & Mun, Choy Chee (2005) Development of a new PM titanium alloy for improved processability. Materials Science and Technology, 21(2), pp. 185-190.

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Abstract

The application of titanium and its alloys are fast expanding from large sized aerospace components to small components such as hand phone covers. They are restricted by the processability and the economics of use of titanium despite the advantages that could be realised. The present work attempts to reduce the processing temperature of Ti by suitable alloying additions. Mixing of the powders was performed in a tumbler mixer with a charge to ball ratio of 1 : 2 for different time durations. The powder mix was then compacted at a pressure of 1050 MPa and was sintered in argon. The effect of alloying additions was studied with respect the properties achievable. The elevated temperature properties of the alloy so developed were also studied. The alloy developed has a hardness ranging from 335 to 370 HV. The tensile strengths obtainable varied from 550 to 800 MPa. Upsetting tests at room and elevated temperature conditions indicated that a maximum strain of close to 30% was achievable at temperatures of 200 degrees Celsius. This facilitates warm forging of the alloy and therefore would cut on the heavy processing costs of Ti alloys.

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1 citations in Scopus
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11 citations in Web of Science®

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158 since deposited on 18 Oct 2007
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ID Code: 10248
Item Type: Journal Article
Refereed: Yes
Keywords: Titanium alloy, Mechanical alloying, Upsetting, Sintering temperature, Atmosphere control, Phases, Fractography
DOI: 10.1179/174328405X18674
ISSN: 0267-0836
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2005 Institute of Materials, Minerals and Mining
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 18 Oct 2007 00:00
Last Modified: 29 Feb 2012 13:12

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