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Cobalt and Cobalt Alloys
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Cobalt and Cobalt Alloys

Abstract:

This article provides a general overview of cobalt-base alloys as wear-resistant, corrosion-resistant, and/or heat-resistant materials. Particular emphasis is placed on cobalt-base alloys for wear resistance, because this is the single largest application area of cobalt-base alloys.

Cobalt is useful in applications that utilize its magnetic properties, corrosion resistance, wear resistance, and/or its strength at elevated temperatures.

This article provides a general overview of cobalt-base alloys as wear-resistant, corrosion-resistant, and/or heat-resistant materials. Particular emphasis is placed on cobalt-base alloys for wear resistance, because this is the single largest application area of cobalt-base alloys. In heat-resistant applications, cobalt is more widely used as an alloying element in nickel-base alloys with cobalt tonnages in excess of those used in cobalt-base heat-resistant alloys.

Elemental Cobalt

Uses of Cobalt. As well as forming the basis of the cobalt-base alloys discussed in this article, cobalt is also an important ingredient in other materials:

Paint pigments

Nickel-base superalloys

Cemented carbides and tool steels

Magnetic materials

Artificial g-ray sources

The role of cobalt in cemented carbides is to provide a ductile bonding matrix for tungsten-carbide particles. The commercially significant cemented carbides contain cobalt in the range of 3 to 25 wt%. As cutting tool materials, cemented carbides with 3 to 12 wt% Co are commonly used.

Shenyang Top New Material Co Ltd

Add:NO.35, xingnong Road,Shenbei Dist ,Shenyang ,China

Tel:+86-18002461961 Fax:+86-24-22902706

Skype: ieleanor2012

Web: www.cobaltalloy.com Email: elleworld@sytop.cn

Pub Time : 2018-11-16 15:57:09 >> News list
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