HEAVY ALLOYS WITH A LOW THERMAL-EXPANSION COEFFICIENT

Citation
Ms. Blanter et al., HEAVY ALLOYS WITH A LOW THERMAL-EXPANSION COEFFICIENT, Powder metallurgy and metal ceramics, 33(9-10), 1994, pp. 482-485
Citations number
12
Categorie Soggetti
Material Science, Ceramics","Metallurgy & Metallurigical Engineering
ISSN journal
10681302
Volume
33
Issue
9-10
Year of publication
1994
Pages
482 - 485
Database
ISI
SICI code
1068-1302(1994)33:9-10<482:HAWALT>2.0.ZU;2-M
Abstract
The possibility of reducing the linear thermal expansion coefficient ( LTEC) of heavy tungsten-base alloys by replacing the binder by one pos sessing Invar properties is studied. Use of Invar type alloys of the F e-Ni and Fe-Co-Cr types as binders makes it possible to prepare heavy alloys with lower LTEC than for the base (tungsten). Tungsten dissolut ion in the binder is the main factor which restricts the LTEC of heavy alloys with an Invar binder.