Swelling during liquid phase sintering of Ti-Ni alloys
Authors: Robertson, I.M.1; Schaffer, G.B.2
Source: Powder Metallurgy, Volume 52, Number 3, September 2009 , pp. 213-224(12)
Publisher: Maney Publishing
Abstract:
The compaction and sintering conditions required for avoidance of swelling and development of very coarse pores during liquid phase sintering of mixed elemental titanium powder metallurgy alloys are described with reference to the titanium-nickel binary system. Swelling is minimised by using low compaction pressure or short sintering time. Swelling appears to require the presence of persistent liquid and closed pores. Gas pressure within closed pores is the probable mechanism of swelling.Keywords: TITANIUM; POWDER PROCESSING; LIQUID PHASE SINTERING; POROUS MATERIAL; DILATOMETRY
Document Type: Research article
DOI: 10.1179/174329009X380590
Affiliations: 1: The University of Queensland, School of Engineering, ARC Centre of Excellence for Design in Light Metals, Queensland 4072, Australia;, Email: i.robertson1@uq.edu.au 2: The University of Queensland, School of Engineering, ARC Centre of Excellence for Design in Light Metals, Queensland 4072, Australia

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