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Sintering of Tungsten and Tungsten Heavy Alloys of W–Ni–Fe and W–Ni–Cu: A Review
Published in Springer Science and Business Media LLC
2017
Volume: 70
   
Issue: 5
Pages: 1161 - 1176
Abstract
Tungsten is a refractory metal possessing good mechanical properties of high strength, high yield point, and high resistance to creep. Therefore, tungsten and its alloys are used in many high temperature applications. Due to the high melting point, they are generally processed through powder metallurgy method. The powders are compacted using die pressing or isostatic pressing. The compacts are sintered in a sintering furnace to achieve high density, thereby, making the metal suitable for further processing. This article reviews the recent research findings of consolidating tungsten and its alloys (W–Ni–Fe and W–Ni–Cu), from preparation of powder alloys to sintering of the compact. The advances in sintering are based on the objective of achieving good densification of the metal at lower temperature and at faster rate. The use of microwave sintering and spark plasma sintering techniques resulted in significant reduction in sintering time and producing products of good mechanical properties. © 2016, The Indian Institute of Metals - IIM.
About the journal
JournalData powered by TypesetTransactions of the Indian Institute of Metals
PublisherData powered by TypesetSpringer Science and Business Media LLC
ISSN0972-2815
Open AccessNo