The abrasive wear and corrosion behavior of as-cast, heat-treated and tempered high chromium white cast iron was studied, and the results
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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
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The annealing of high-chromium white cast iron alloys is conducted when it is necessary to machine the pieces before destabilization.
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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
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Abstract: High-Chromium White Cast Iron is a material highly used in mining and drilling shafts for oil extraction, due to its high wear resistance. However,
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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
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University of São Paulo Abstract Wear resistance of high Cr white cast irons can be improved by means of heat treatment. This type of cast iron alloy may present a microstructure with retained
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Hypoeutectic White Iron with 25%Cr after Heat Treatments treatment variables applied to a high-chromium as-cast white iron have on
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secondary carbides which are formed during solidification and precipitated during heat treatments of high chromium irons. Keywords – High chromium cast iron
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For castings which will be heat treated, the desired mold-cooled structure is often pearlite. This
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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
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ABSTRACT: High-chromium white cast iron contains chromium carbides that provide excellent wear resistance, but also cause poor fracture properties. Heat
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The invention discloses a heat-treatment method of high-chromium wear-resistant white cast iron Cr28. According to the invention, high-chromium
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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
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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
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In this context, the properties of this alloy, containing 22% chromium and 3% carbon, were investigated after applying different heat treatments and their
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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.
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High chromium white cast irons (HCWCI) are widely used as abrasion resistant materials in cement manufacturing, mineral processing and slurry pumping
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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
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Read Effect of Heat Treatment on Wear Resistance and Impact Strength of High Chromium White Cast Iron. Read Effect of Heat Treatment on Wear Resistance and Impact Strength of High Chromium White Cast Iron Heat Treatment in High Chromium White Cast Iron Ti Alloy Journal of Metallurgy . 10.1155/ /856408 . . Vol . pp. 1-9
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Jul 29, · Soft annealing of high chromium white cast iron. Materials Science Forum, 455–456 (2004), pp. 290-294. View Record in Scopus Google Scholar. R.L. Pattyn. Behavior of hardness and retained austenite in heat treatment of high chromium cast iron for abrasive wear resistance. Transactions AFS, 112 (2004), pp. 899-910. View Record in Scopus
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