heat treatment of white cast iron high chromium
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heat treatment of white cast iron high chromium

Research Article Heat Treatment in High Chromium

2019-7-31  of its properties at high temperatures, compared to other wear resistant materials [ ]. 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) 7 C 3 carbides [ , ]. For many applications, castings are heat ...

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CN102899469B - Heat-treatment method of high

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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Effect of Heat Treatment on the Impact Toughness of

2017-3-7  The bimetal was produced from high-chromium white cast iron of grade G-X300CrMo27-2 (DIN EN 12513:2001) and low-alloy steel of grade S235JR (DIN EN 10025) using the method of casting into a horizontal sand mold (Fig. 1).The steel melt was poured into receiving hopper 1 at 1580°C. When the required temperature was attained, an activator (a solution of Na 2 B 4 A 7 + B 2 O 3) was

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Heat Treatment of Cast Irons 2018-12-12 Industrial

2018-12-12  Common Heat Treatment for the Specific Cast-Iron Types. High-alloy (e.g., high chromium, high nickel-chromium) white irons can be heat treated. For example,

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Heat Treatment of White Cast Irons Metallurgy

2021-11-13  Low-alloy pearlitic white irons have hardness between 350-550 BHN, whereas high-alloy white irons have between 450-800 BHN. High-alloy white cast irons normally have austenite matrix in as-cast state, but is changed to hard martensite by heat-treatment. Carbon content is high when maximum abrasion-resistance is desired, but is on lower side ...

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Effect of Chromium Content on Heat Treatment Behavior

The effect of chromium (Cr) content on heat treatment behavior of multi-alloyed white cast iron with basic alloy composition of 5mass% Mo, Wand Veach and 2mass%C was investigated. Cast iron with varying Cr content from 3 to 9% was prepared.

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(PDF) Analysis of the High Chromium Cast Iron ...

The article presents results of heat treatment on the high chromium cast iron. The study was carrying out on samples cut from the casting made from chromium cast iron.

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High Chromium Cast Iron: Part One :: Total Materia Article

High Chromium Cast Iron: Part One. Abstract: High chromium cast irons (HCCI’s) exhibit very good mechanical properties and offer benefits for a range of manufacturing applications. With carefully controlled heat treatment the cast iron properties can be further influenced to yield higher strength and ductility depending on the desired ...

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HIGH CHROMIUM WHITE CAST IRON (HIGH CR WHITE

2019-8-29  High Chromium White Cast Iron, or High Cr White Iron grades are used in wear applications that require some corrosion resistance. One common application

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Research Article Heat Treatment in High Chromium

2019-7-31  of its properties at high temperatures, compared to other wear resistant materials [ ]. 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) 7 C 3 carbides [ , ]. For many applications, castings are heat ...

More

Heat Treatment Technology of High Chromium Iron

2020-10-2  As an anti-wear material, High Chrome White Iron Castings have not only necessary strength and toughness, but also their hardness is the most important quality index. Some high chromium iron castings can obtain the required hardness in the as-cast state, but most of them need heat treatment to meet the hardness requirements.

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Heat Treating of High-Alloy White Cast Irons[1] Heat ...

This article provides a brief discussion on the heat treatment, mechanical properties, and chemical compositions of high-alloy white cast irons such as nickel-chromium white

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Heat Treating of High-Alloy White Irons :: Total Materia ...

Heat Treatment or Nickel-Chromium White Irons. Nickel-chromium white iron castings are given a stress-relief heat treatment because, properly made, they have a martensitic matrix structure, as-cast. Tempering is performed between 205 to 260°C (400 to 450°F) for at least 4 h.

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Heat Treatment of Cast Irons 2018-12-12 Industrial

2018-12-12  Common Heat Treatment for the Specific Cast-Iron Types. 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,

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Effect of Chromium Content on Heat Treatment Behavior

The effect of chromium (Cr) content on heat treatment behavior of multi-alloyed white cast iron with basic alloy composition of 5mass% Mo, Wand Veach and 2mass%C was investigated. Cast iron with varying Cr content from 3 to 9% was prepared.

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Effect of Heat Treatment on Microstructure and

2013-12-24  wear performance of high chromium white cast iron. Quenching, seeding and micro-alloying can, to a limited extent, increase the wear resistance, but this is best achieved by heat treatment in the solid state. The methods for producing high chrome iron casting include double pour, continuous pour and centrifugal castings [1, 3].

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Heat treatment process for high chromium grinding ball

2 天前  Heat treatment of high chromium grinding ball is the main method to obtain good wear resistance. The research on high chromium cast iron ball mainly focuses on chemical composition selection, heat treatment process determination, modifier

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HIGH CHROMIUM WHITE CAST IRON (HIGH CR WHITE

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

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Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS

2019-8-8  NICKEL-CHROMIUM WHITE IRONS The oldest group of high-alloy ironsofindustrialimportance,the nickel-chromium white irons (Ni-Hard irons), have been produced for more than 50 years and are cost-effective materials for crushing and grinding. In these martensitic white irons, nickel is the primary alloying element, because3 to5%Niiseffectivein

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(PDF) Heat Treatment in High Chromium White Cast Iron

The influence of heat treatment on microstructure and mechanical properties of high chromium white cast iron alloyed with titanium was investigated. The austenitizing temperatures of 980∘ C and 1150∘ C for 1 hour each followed by tempering at 260∘ C for 2 hours have been performed and the effect of these treatments on wear resistance ...

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Heat Treatment Technology of High Chromium Iron

2020-10-2  As an anti-wear material, High Chrome White Iron Castings have not only necessary strength and toughness, but also their hardness is the most important quality index. Some high chromium iron castings can obtain the required hardness in the as-cast state, but most of them need heat treatment to meet the hardness requirements.

More

Heat Treating of High-Alloy White Cast Irons[1] Heat ...

This article provides a brief discussion on the heat treatment, mechanical properties, and chemical compositions of high-alloy white cast irons such as nickel-chromium white

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High-chromium Cast Ball Heat Treatment Process

2021-10-14  Cast grinding balls are solidified in high chromium cast iron to form (CR, Fe)7C3 type carbides, which are discontinuous in the structure, so they have much better toughness than ordinary white iron. In addition, the microhardness of (CR, Fe)7C3 is much higher than that of (Fe, CR)3C carbides in common white iron, and it exceeds the hardest abrasive material commonly encountered

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Effect of Heat Treatment on Microstructure and

2013-12-24  wear performance of high chromium white cast iron. Quenching, seeding and micro-alloying can, to a limited extent, increase the wear resistance, but this is best achieved by heat treatment in the solid state. The methods for producing high chrome iron casting include double pour, continuous pour and centrifugal castings [1, 3].

More

Heat Treating ASTM A532 Chrome White Iron Penticton ...

2018-1-16  No article on heat treating ASTM A532 would be complete without taking a look at its microstructure. The high level of chromium in high chrome white iron prevents the formation of graphite in the microstructure. Instead of graphite, the carbon in the

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High hardness-toughness and wear resistance of white

2021-8-4  White cast iron ball; destabilizing heat treatment following multicycle quenching and sub-critical treatment (De-MQ-Sct) process; secondary carbide; hardness-toughness; wear resistance Introduction High-chromium white irons are usually hypoeutectic ones, and they are often used in wear environments, such as mineral processing, cement production and

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High Chromium White Irons for Mining, Grinding and ...

2020-9-3  of white cast iron: The proposal of a novel process. Mater Sci Eng A 618: 96-103. 9. Gasan H, Erturk F (2013) Effects of a destabilization heat treatment on the microstructure and abrasive wear behavior of high-chromium white cast iron investigated using different characterization techniques. Metallurgical and Materials Transactions A 44: 4993 ...

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HIGH CHROMIUM WHITE CAST IRON (HIGH CR WHITE

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

More

Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS

2019-8-8  NICKEL-CHROMIUM WHITE IRONS The oldest group of high-alloy ironsofindustrialimportance,the nickel-chromium white irons (Ni-Hard irons), have been produced for more than 50 years and are cost-effective materials for crushing and grinding. In these martensitic white irons, nickel is the primary alloying element, because3 to5%Niiseffectivein

More
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