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.

High Chromium White Cast Iron, or High Cr White Iron grades are used in wear applications that require some corrosion resistance. One common application using High Chrome White Iron alloys is in Pump and Valve parts for the Mining industry. The high chromium content offers the corrosion resistance and the fine carbides dispersed throughout

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

The most commonly used high-chromium white cast iron (HCWCI) is the hypoeutectic white cast iron that contains 2-3.5 wt.% C and 10-30% Cr. This type of material 

High-chromium white cast irons are ferrous alloys with Cr contents between 12 and 30% and 1.8–3.6% C. The as-cast microstructure is typically composed by a 

High-alloy (e.g., high chromium, high nickel-chromium) white irons can be heat treated. For example, nickel-chromium white-iron castings are given a stress-relief heat treatment because adequately made, they have an as-cast martensitic matrix structure. Tempering is performed between 205°C (400°F) and 260°C (450°F) for at least 4 hours.

The treatment consists of heating the castings to 480-540°C for 8-12 hours, but the temperature and the time at the temperature have important bearings on properties. Excess time or temperature may soften the castings with drastic reduction in the abrasion resistance; whereas, insufficient temperature does not eliminate the austenite completely.

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

In order to improve the wear resistance and toughness of high chromium white cast iron,Different kinds of heat treatments for the experimental materials are adopted to change the structure of the material.That is change the quantity,the fundamental type of the carbide.Based on the measurement of mechanical prosperities and observation of metallographic microstructrue on the different samples

Heat Treatment or Nickel-Chromium White Irons. Tempering is performed between 205 to 260°C (400 to 450°F) for at least 4 h. This tempers the martensite, relieves some of the transformation stresses, and increases the strength and impact toughness by 50 to 80%.

In order to improve the wear resistance and toughness of high chromium white cast iron,Different kinds of heat treatments for the experimental materials are adopted to change the structure of the material.That is change the quantity,the fundamental type of the carbide.Based on the measurement of mechanical prosperities and observation of metallographic microstructrue

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

Hypoeutectic White Iron with 25%Cr after Heat Treatments treatment variables applied to a high-chromium as-cast white iron have on 

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

Although high chromium white iron (Cr15Mo3) has an excellent wear-resisting property,the rising price of ferro-molybdenum limits its application. Wang Jingjing[56]has developedCr15Mn5Si3white iron using the way of Mn replacing Mo. The structure and performance ofCr15Mn5Si3has been close to that of Cr15Mo3white iron, while more retained

Two different heat treatment cycles were used; the first one was applied by austenitizing at 980°C for one hour and tempering at 260°C for 2 hrs. The second