heat treatment of high chromium white cast iron

Chapter 1 High Chromium Cast Irons cryogenic treatment of sg iron for disc brake application, white cast iron 10 hardness 375 to 600 bhn tensile, microstructure evaluation and wear resistant properties of, alloying additions of molybdenum and or nickel up to 1 5 white cast iron 11, resistant high chromium cast iron the results on ti alloyed

Alloy steels types, properties and uses. Cast Iron: Grey, white, ductile and malleable cast iron. in the range of 0.3% to 0.7% Are popularly known as machinery steels Are easily hardened by heat treatment. High carbon steels Have carbon contents between 0.7 and 1.4 wt%, are the hardest, strongest, and yet least ductile of the carbon steels

the nickel-chromium martensitic white irons, containing up to about 7% ni and 11% cr, usually put into service after only a low-temperature heat treatment at 230 to 290c to temper the martensite and to increase toughness. if retained austenite is present and the iron therefore has less than optimum hardness, a subzero treatment down to liquid

In the present investigation, erosive wear property of high chromium white cast irons (HCWI) is reported. HCWI were destabilized at two 

The invention discloses a heat-treatment method of high-chromium wear-resistant white cast iron Cr28. According to the invention, high-chromium 

the high temperature strength and high temperature hardness of high chromium cast iron are high, especially in the atmosphere containing chemical components such as so2 oxidation resistance is very good.therefore, it is widely used in heat resisting parts of blast furnace, coke oven, sintering furnace and other industrial furnaces.especially at

cooperate to specify the composition, heat treatment, and foundry practice The high-alloy white cast irons fall into three major groups:.

Process/ Alloy has been developed for the production of high chrome high carbon cast iron with improved wear resistance. Heat Treatment has been optimized to get better wear resistance. Oil temperature and viscosity of the oil have been optimized to have a faster quenching rate and also to achieve distortion-free grinding media.

The invention discloses a heat-treatment method of high-chromium wear-resistant white cast iron Cr28. According to the invention, high-chromium wear-resistant white cast iron Cr28 is heated to 1000-1050 DEG C; the white cast iron Cr28 is heated and the temperature is maintained for 1.5-3h; the white cast iron Cr28 is air-cooled to room temperature; the white cast iron Cr28 is heated to 710-730

In the as-cast condition, the microstructure of high chromium molybdenum white iron consists essentially of dendrites of austenite in a matrix of eutectic mixture of austenite and (Fe, Cr)7C3carbides [ , ]. For many applications, castings are heat treated prior to service to increase the wear resistance as well as impact toughness.

The abrasive wear and corrosion behavior of as-cast, heat-treated and tempered high chromium white cast iron was studied, and the results