Effect of residual pressure on vacuum sintering of Ti-Ni alloys

Robertson, I. M. and Schaffer, G. B. (2009) Effect of residual pressure on vacuum sintering of Ti-Ni alloys. Powder Metallurgy, 52 4: 316-321. doi:10.1179/003258909X12450768327108

Author Robertson, I. M.
Schaffer, G. B.
Title Effect of residual pressure on vacuum sintering of Ti-Ni alloys
Journal name Powder Metallurgy   Check publisher's open access policy
ISSN 0032-5899
Publication date 2009-12
Year available 2009
Sub-type Article (original research)
DOI 10.1179/003258909X12450768327108
Volume 52
Issue 4
Start page 316
End page 321
Total pages 7
Editor J. J. Dunkley
Place of publication United Kingdom
Publisher Maney Publishing
Collection year 2010
Language eng
Subject C1
861206 Structural Metal Products
0912 Materials Engineering
091207 Metals and Alloy Materials
Abstract In earlier work the authors examined the sintering of Ti-Ni alloys by means of dilatometry of mixed elemental powders. Some notable differences were observed when heat treatments were carried out using a vacuum tube furnace rather than the dilatometer: higher sintered density was achieved due to a combination of lower heating rate and lower residual pressure, and swelling during liquid phase sintering was greatly reduced. This observation is consistent with the idea that gas pressure within closed pores causes swelling during liquid phase sintering and retardation of shrinkage in solid state sintering. In addition to the results of measurements of density and open and closed porosity as a function of Ni content and sintering temperature, macrographs and optical micrographs of the sintered compacts are presented, and the effects of heating rate and compaction pressure are described.
Keyword Titanium
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 10 Jan 2010, 00:02:06 EST