Cobalt Alloys definition of Cobalt Alloys in the Free Online Encyclopedia.

Cobalt Alloys

alloys based on cobalt; used primarily in the manufacture of components operating at high temperatures, such as blades for turbojet engines.

“Casting” cobalt alloys are alloys of the Co-Cr-C-X system, where × is tungsten, molybdenum, niobium, or nickel, that exhibit good casting properties. Since hardening of these alloys is effected mainly by the carbide phases, they contain 0.2–1.0 percent carbon. The addition of boron improves the casting properties of the alloys but it may decrease their weldability.

Cobalt alloys are highly resistant to thermal fatigue. The average thermal expansion coefficient is low [(15.9–16.5) × 10^-6 1/ °C] within the temperature range of 20°–870°C. The most heat-resistant cobalt alloys maintain their durability at temperatures up to 1100°C. Long-term ultimate strength meganewtons per sq m, or 7 kilograms-force per sq mm. Cobalt alloys of the Co-Cr-Ni-Mn system, which contain up to 50 percent Co (deformable cobalt alloys), exhibit high resistance to thermal fatigue and can be worked under pressure. Cobalt alloys called stellites (30 percent Cr, as well as W, Si, and C) are used for hard-facing of machine tools and parts (without subsequent heat treatment) to increase their wear resistance. As a basic or alloying element, cobalt is one of the magnetic materials.

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No references found	For example, the stipulates a 'Preference for Domestic Specialty Metals' which mandates that Defense suppliers provide a Statement of Compliance for specialty metals components including steel, nickel alloys, cobalt alloys, titanium and zirconium. Finding and Interpreting DFARS Clauses for Defense Procurement ... by Glyn Bryson / Business community Sandvik Materials Technology, a world-leading manufacturer of high value-added products in advanced stainless steels and special alloys, and ThyssenKrupp VDM, one of the world's leading suppliers of nickel and cobalt alloys, titanium and other high-performance materials, have announced that they have agreed on a cooperation on the production and sale of zirconium products. Firms cooperate on zirconium by Gulf Industry Both the SAC 305 and cobalt alloys exhibited no deterioration in solder attachment integrity after 1,000 thermal cycles (Figure 1). A test comparison of SAC and non-SAC Pb-free solders: SAC 305 evolved ... by Stevens, Howard P. / Circuits Assembly	Coaxial Hydroturbine coaxial input coaxial isolator coaxial line coaxial machine gun Coaxial Magnetron coaxial planes coaxial relay coaxial speaker coaxial stub coaxial switch coaxial transistor coaxial transmission line coaxial wavemeter coaxial-cylinder magnetron coaxial-line resonator coaxially fed linear array coaxing cob cob wall cobaea vine Cobain, Kurt cobalamin Cobalamins Cobalt Cobalt Alloys cobalt bloom cobalt blue cobalt bomb cobalt bromide cobalt chloride cobalt glance cobalt nitrate cobalt ocher Cobalt Ores cobalt oxide cobalt potassium nitrite cobalt pyrites cobalt sulfate cobalt therapy cobalt trifluoride cobalt ultramarine cobalt yellow cobalt-60 cobalt-beam therapy cobalt-molybdate desulfurization cobaltic fluoride Cobaltite cobaltocalcite cobaltomenite cobaltous acetate	cobalamin cobalamin deficiency cobalamin vitamin cobalamin vitamin cobalamin vitamin cobalamine cobalamine cobalamine cobalamins cobalamins cobalamins COBALLT cobalt cobalt cobalt cobalt cobalt cobalt Cobalt (color) Cobalt (color) Cobalt (element) Cobalt (element) Cobalt (element) cobalt 57 cobalt 57 cobalt 57 cobalt 60 cobalt 60 cobalt 60 Cobalt 60 (band) Cobalt Alloys Cobalt arsenic sulfide Cobalt arsenic sulfide cobalt bloom cobalt bloom cobalt blue cobalt blue Cobalt blue (comic) Cobalt blue (comic) Cobalt Blue Prairie Rag Rug Cobalt bomb Cobalt bomb cobalt bromide Cobalt chloride Cobalt Chrome Cobalt crust Cobalt glance Cobalt glance Cobalt green Cobalt irradiation Cobalt irradiation cobalt knife cobalt lung Cobalt nitrate cobalt nutritional deficiency cobalt nutritional deficiency cobalt nutritional deficiency cobalt ocher Cobalt Ores Cobalt oxide cobalt poisoning

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For example, the stipulates a 'Preference for Domestic Specialty Metals' which mandates that Defense suppliers provide a Statement of Compliance for specialty metals components including steel, nickel alloys, cobalt alloys, titanium and zirconium.

Finding and Interpreting DFARS Clauses for Defense Procurement ... by Glyn Bryson / Business community

Sandvik Materials Technology, a world-leading manufacturer of high value-added products in advanced stainless steels and special alloys, and ThyssenKrupp VDM, one of the world's leading suppliers of nickel and cobalt alloys, titanium and other high-performance materials, have announced that they have agreed on a cooperation on the production and sale of zirconium products.

Firms cooperate on zirconium by Gulf Industry

Both the SAC 305 and cobalt alloys exhibited no deterioration in solder attachment integrity after 1,000 thermal cycles (Figure 1).

A test comparison of SAC and non-SAC Pb-free solders: SAC 305 evolved ... by Stevens, Howard P. / Circuits Assembly