Structure and properties of W-Ni-Fe-Co heavy alloys compacted from nanopowders View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2008-02

AUTHORS

K. B. Povarova, M. I. Alymov, O. S. Gavrilin, A. A. Drozdov, A. I. Kachnov, N. L. Korenovskii, I. O. Bannykh

ABSTRACT

Heavy tungsten alloy (HTA) W-Ni-Fe-Co nanopowders synthesized by a chemical-metallurgical method are used to produce a compacted material with a theoretical density and a grain size of 2.9–4.6 μm. Upon solid-phase sintering (SPS) at 1350–1450°C, the binder composition of the produced material coincides with the binder composition of the alloy fabricated by liquid-phase sintering (LPS) according to a traditional technology. The hardness of the material is 4400–3400 MPa (as compared to 1750 ± 50 and 2950 ± 50 MPa after LPS followed by a hardening treatment for a standard HTA), and its ultimate tensile strength after SPS is 950–1050 MPa (as in the case of the standard alloy after LPS). The melting temperature of the binder is 25–30°C lower than that of the traditional alloy. More... »

PAGES

52-55

Journal

TITLE

Russian Metallurgy (Metally)

ISSUE

1

VOLUME

2008

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s0036029508010102

DOI

http://dx.doi.org/10.1134/s0036029508010102

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1001201294


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