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)

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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: POWDER PROCESSING; DILATOMETRY; POROUS MATERIAL; LIQUID PHASE SINTERING; TITANIUM

Document Type: Research Article

DOI: http://dx.doi.org/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

Publication date: 2009-09-01

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