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According to the study “Asia Co-Based MCrAlY Alloy Powder Industry Situation and Prospects Research report”, cobalt alloys are combined with chromium and molybdenum to increase the metal’s corrosion resistance. The advantages of cobalt alloys are high melting point, strength, and resistance to oxidation. These are also known as superalloys which are made of cobalt, chromium, and other metals such as tungsten, molybdenum, tantalum, niobium, zirconium, and hafnium. These alloys are used in the manufacture of very hard cutting tools and surfaces subject to heavy wear such as turbines or space vehicles. Hard metals are cemented carbides that possess extraordinary properties of hardness similar to diamond. They possess properties such as resistance to heat and wear and hardness increases with increasing temperature.
Cobalt based Molybdenum Chromium Aluminium Yttrium (MCrAlY) alloy powder is a well established important supporting technology for the manufactures of aeroengine and industrial turbines. Higher turbine combustion temperatures are desirable for increased engine efficiency and environmental reasons such as reduction in pollutant emissions such as NOx. It was observed that there is a huge demand for Co-Based MCrAlY alloy powder due to its excellent physical and chemical properties on the basis of materials of fabrication. Co-Based MCrAlY alloy powder coating is widely applied to first and second stage turbine blades and nozzle guide vanes. It is used as corrosion resistant and as overlay or as bond-coat for use with thermal barrier coatings. The choice of Co-Based MCrAlY alloy powder depends on the corrosion mechanism as the engine temperatures increase. Therefore, compositions of Chromium and Aluminium present in Co-Based MCrAlY alloy powder form highly tenacious protective oxide scales, while Yttrium promotes formation of these stable oxides. Co-Based MCrAlY alloy powder in coating is handled as physical vapour deposition, low pressure, vacuum plasma or air plasma spraying, and high velocity oxyfuel spraying. Co-Based MCrAlY alloy powder offers high quality in terms of minimal oxidation of the powder coating during the deposition process which is most expensive.
The leading players in Asia’s Co-Based MCrAlY alloy powder are Powder Alloy Corporation, Praxair, H.C. Starck, Oerlikon Metco, Sandvik and Metal Powder and Process. Geographically, Co-Based MCrAlY Alloy Powder in Asia is spread across China, India, Japan, Southeast Asia and other regions. Asia’s Co-Based MCrAlY Alloy Powder is utilized in industrial application as well as aviation applications. Asia’s Co-Based MCrAlY Alloy Powder market is categorized into various product types such as Co Content 30% and others. The increasing consumption of Co-Based MCrAlY alloy powder in various industrial and aviation manufacturing processes has led to the growth of Co-Based MCrAlY alloy powder market in Asia. This trend will continue over next few years due to industrialization and developing Asian economies.
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Ankur Gupta, Head Marketing & Communications