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Tungsten-based alloys have many excellent properties, such as the decorative appearance , high hardness , high wear resistance , high thermal stability, good corrosion resistance , high catalytic activity , good magnetic energy . In recent years, researchers have developed a variety of system tungsten alloy . Electrodeposited Ni-WP alloy coating has a number of advantages of simple operation, stability , and low cost solution which are widely used . Despite the plated Ni-WP alloy coating has a very good nature , but it's value does not stop there , the heat treatment of Ni - WP alloy coating has superior performance , whether in the mechanical properties or corrosion . Material properties of Ni-WP alloy coating after heat treatment significance . More systematic study of the influence of heat treatment temperature on the structure and properties of the structure of Ni - WP alloy coating . Electrochemical preparation method is the preparation of new materials more efficient and effective method . This article is prepared by electrochemical method to develop a Fe - WP , Fe - Ni -WP alloy preparation method , and then do a detailed study of these two new materials structured . Ni-WP Alloy Plating state crystal structure between the nano-crystalline and amorphous , with the heat treatment temperature , the alloy plating layer gradually changes to the crystalline state by testing found that the crystal structure and hardness of the alloy plating layer , with the WNI ( 211 ) phase ratio increases, the hardness of the alloy increases . Alloy after heat treatment at different temperatures and corrosion studies have shown that : 500 ° C heat-treated alloy coating has the best corrosion resistance . Overall , 500 ° C after heat treatment , plating regardless of the mechanical properties of the alloy , or corrosion resistance , are optimal . Under alkaline conditions , Fe - WP ternary alloy electrodeposition , to study the impact of each component of the plating bath of the coating composition and process parameters on the deposition rate , hardness . Results : except NaH2PO2 , bath component coating composition has a significant effect on the change of process parameters on the deposition rate , hardness also have a certain impact , especially NH3 deposition rate of a very significant . Crystal structure of the coating , the corrosion resistance of : electro-deposition of Fe - WP alloy is typical of amorphous structure , corrosion resistance slightly better than stainless steel . Fe - Ni - WP as a new material also has superior performance.
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