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Properties and Uses of 3D Metal Printing Powder Cobalt-Chromium-Tungsten CoCrW Alloy Powder

2020-10-29 15:42:39  News

What is cobalt chromium tungsten?

Cobalt chromium tungsten alloy (CoCrW) is one of the Stellite alloys. Stellite alloy is a hard alloy that can withstand various wear, corrosion, and high-temperature oxidation. The so-called cobalt-based alloy. Stellite has initially been a binary cobalt-chromium alloy and later developed into a cobalt-chromium-tungsten ternary composition. Cobalt-chromium-tungsten alloy is a kind of alloy with cobalt as the main component, containing a considerable amount of chromium, tungsten, and small nickel molybdenum, silicon, carbon, niobium, tantalum, and other alloying elements, and occasionally also containing iron. According to the alloy's different components, they can be made into welding wire, the powder used for hard surface welding, thermal spraying, spray welding, and other processes, and can also be made into castings and forgings and powder metallurgy parts.


The application of cobalt-chromium tungsten?

Cobalt chromium tungsten alloy is widely used in locomotive diesel engines, nuclear power plant valves, marine diesel engines, and various aircraft.


Early cobalt-chromium-tungsten alloys were produced by non-vacuum smelting and casting processes. Later developed alloys, such as Mar-M509 alloy, are produced by vacuum smelting and vacuum casting because they contain more active elements such as zirconium and boron.

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Generally, cobalt-chromium-tungsten alloy lacks a coherent strengthening phase. Although the strength is low at medium temperature (only 50-75% of nickel-based alloy), it has higher strength, good thermal fatigue resistance, and thermal corrosion resistance above 980℃. And abrasion resistance, and has better weldability. It is suitable for making guide vanes and nozzle guide vanes for aviation jet engines, industrial gas turbines, ship gas turbines, and diesel engine nozzles.


Spherical cobalt-chromium-tungsten alloy powders are mostly used for 3D printing of biomedical materials such as teeth, human stents, and artificial joints. The powder can be used in various types of metal 3D printers, including Laser melting equipment from Renishaw, Germany, EOS (EOSINT M series), Concept Laser, and 3D systems from the United States, as well as selected areas developed by domestic scientific research institutions and enterprises Laser melting equipment, such as Huashu Hi-Tech, Blite, etc. The powder can be used in laser/electron beam additive manufacturing (SLM/EBM), powder metallurgy (PM), spraying, welding, and other processes.


TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years' experience in providing super high-quality chemicals and Nanomaterials. Our company's 3D printing metal powder CoCrW powder has high purity, adequate particle size, and impurity content. Lower, please contact us if necessary.


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