hIGH ChroME CaST IRon Heat treAtmENT

  • 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.

  • CN104195420A - High-chrome wear-resistant cast iron ...

    The invention discloses a high-chrome wear-resistant cast iron material and a heat treatment method. The high-chrome wear-resistant cast iron material is prepared from iron as a main raw material, and carbon, silicon, manganese, sulphur, phosphorus, chrome, molybdenum, nickel and copper as auxiliary materials in manners of melting and casting after preparation.

  • Effect of heat treatment on the properties of high ...

    1. Austenite in high-chromium cast irons is stable up to 500°. At higher temperatures the austenite begins to decompose, causing changes in the hardness, wear resistance, and mechanical properties. 2. The resistance of high-chromium cast iron to hydroabrasive wear is minimal in the cast condition and in the annealed condition. 3. To improve the machinability the alloys should

  • Research Article Heat Treatment in High Chromium

    2019-7-31 · e ects of both Ti-additions and heat treatment conditions on microstructure as well as abrasion resistance and impact toughness. 2. Experimental Work e chemical composition of the studied high Cr-Mo white iron is given in Table . Sulphur and phosphorous contents werebelow. %. ealloysweremeltedinamedium frequency induction furnace.

  • 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].

  • 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 ...

  • Heat treatment effect on microstructure, hardness and

    2014-8-16 · YUAN Zizhou, KUANG Yi, YU Jinfeng. Tempering process on microstructure and mechanical properties of KmTBCr26 high chromium cast iron[J]. Casting, 2004, 53(10): 788–791. (in Chinese) Google Scholar [9] ZHU Lijuan, YANG Chengkun, LIU Yue, et al. Blast liner with Cr26 high chromium cast iron heat treatment[J].

  • Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS

    2019-8-8 · matrix of the chill-cast shell becomes martensitic. Special Nickel-Chromium White Iron Alloys Some roll alloys are designed to undergo a modified normalizing heat treatment in order to obtain a bainitic microstructure. Microstructure of indefinite chill rolls

  • Heat Treatment of Cast Irons - Heat Treat Doctor

    2011-5-16 · transformations on which cast iron heat treatments are based are similar to those applied to steels. Heat Treatment of Cast Irons Daniel H. Herring, The HERRING GROUP, Inc., Elmhurst, Ill. Diamond Platinum Rhenium Palladium Germanium Beryllium Indium Hafnium Silver Cobalt Zirconium Titanium Tin Nickel Magnesium Copper Aluminum Iron 1 10 100 103 ...

  • Effect of heat treatment on the properties of high ...

    1. Austenite in high-chromium cast irons is stable up to 500°. At higher temperatures the austenite begins to decompose, causing changes in the hardness, wear resistance, and mechanical properties. 2. The resistance of high-chromium cast iron to hydroabrasive wear is minimal in the cast condition and in the annealed condition. 3. To improve the machinability the alloys should

  • Research Article Heat Treatment in High Chromium

    2019-7-31 · e ects of both Ti-additions and heat treatment conditions on microstructure as well as abrasion resistance and impact toughness. 2. Experimental Work e chemical composition of the studied high Cr-Mo white iron is given in Table . Sulphur and phosphorous contents werebelow. %. ealloysweremeltedinamedium frequency induction furnace.

  • 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].

  • Heat treatment effect on microstructure, hardness and

    2014-8-16 · YUAN Zizhou, KUANG Yi, YU Jinfeng. Tempering process on microstructure and mechanical properties of KmTBCr26 high chromium cast iron[J]. Casting, 2004, 53(10): 788–791. (in Chinese) Google Scholar [9] ZHU Lijuan, YANG Chengkun, LIU Yue, et al. Blast liner with Cr26 high chromium cast iron heat treatment[J].

  • Heat treatment process for high chromium grinding ball

    2021-11-21 · 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 selection, good carbide type and wear mechanism.

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

    Microstructure, High-alloy white iron, High-chromium white iron, Nickel-chromium white iron, Cast metal products, Heat treatment, Chemical composition, Fracture toughness, Abrasive wear resistance, Hardness

  • High Chromium Cast Iron: Part Two :: Total Materia Article

    They concluded that: 1. High chromium white cast iron has different matrix structures in different treatment states. There are austenite in casting state, pearlite in annealing state, martensite in quenching state, and tempered martensite in tempering state. All of them contain (Fe,Cr) 7 C 3 type eutectic carbide.

  • Heat Treatment of Cast Irons - Heat Treat Doctor

    2011-5-16 · transformations on which cast iron heat treatments are based are similar to those applied to steels. Heat Treatment of Cast Irons Daniel H. Herring, The HERRING GROUP, Inc., Elmhurst, Ill. Diamond Platinum Rhenium Palladium Germanium Beryllium Indium Hafnium Silver Cobalt Zirconium Titanium Tin Nickel Magnesium Copper Aluminum Iron 1 10 100 103 ...

  • Hi-chrome Iron Alloy | Hi-Chrome Casting | Hi-Chromium ...

    West Salisbury Foundry can produce 15% and 25% Hi-Chrome alloy iron, used in applications of wear resistance and long term heat resistance are required, such as impellers, turbines, and grinding applications. High-chromium alloys attribute their superior hardness to the presence of chromium carbides.

  • Methods For Heat Treatment Of Cast Iron

    Hardening Cast Iron. The following process can be used for hardening cast iron whether rough or after machining. The casting is first heated to a cherry-red heat; it is then dipped in a bath which consists of a practically anhydrous acid of high heat-conducting power, preferably sulphuric acid of a specific gravity of from 1.8 to 1.9, to which ...

  • XRD Investigation on Heat Treatment of High Chrome

    XRD Investigation on Heat Treatment of High Chrome White Cast Irons . M. Ngqaseand X. Pan . ... The XRD pattern of as-cast hypoeutectic iron is shown in Figure 2. The crystalline phases were

  • Influence of heat treatment on microstructure and sliding ...

    2017-6-15 · In this study, hypoeutectic high chromium cast iron (HCCI) is deposited on low alloy steel by using electroslag welding. The yielded mixture is furthered introspected by exposing it to range of temperatures (i.e. 440 °C, 480 °C, 520 °C, 560 °C, 600 °C).The respective microstructures are studied after the heat treatment, subsequently.

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

    Microstructure, High-alloy white iron, High-chromium white iron, Nickel-chromium white iron, Cast metal products, Heat treatment, Chemical composition, Fracture toughness, Abrasive wear resistance, Hardness

  • Methods For Heat Treatment Of Cast Iron

    Hardening Cast Iron. The following process can be used for hardening cast iron whether rough or after machining. The casting is first heated to a cherry-red heat; it is then dipped in a bath which consists of a practically anhydrous acid of high heat-conducting power, preferably sulphuric acid of a specific gravity of from 1.8 to 1.9, to which ...

  • Cladding high chromium cast irons on low carbon steel ...

    2020-5-1 · 1. Introduction. High chromium cast irons (HCCIs) with high strength and good wear resistance have been widely used materials in many industries, such as cement manufacturing, mineral processing and slurry pumping, et al. , , , .But the poor impact toughness is an important reason limiting its performance .Compared with casting process, HCCIs prepared by cladding

  • Heat Treatment of Grey Irons | Cast Irons | Metallurgy

    2022-1-4 · If the CEV of un-alloyed grey iron is low (3.27-3.37), the as-cast strength and hardness is high (case 1 in Table 15.10); Normalising (heat at 900°C for 1½ hr., air-cool) almost restores these properties; but the unalloyed cast iron with high CEV and low Mn%, not only has low as-cast tensile Strength and hardness, but normalising decreases it ...

  • PROPERTIES, IDENTIFICATION, AND HEAT TREATMENT

    2018-7-11 · HEAT TREATMENT OF METALS GENERAL PURPOSE ... Ferrous metals include cast iron, steel, and the various steel alloys, The only difference between iron and steel is the carbon ... holding the steel stationary and touching a high-speed portable grinder to the steel with sufficient pressure to throw a spark

  • HEAT AND CORROSION RESISTANT CASTINGS: THEIR

    The heat-resistant alloys are listed in Table I along with their chemical compositions and designations. Commercial cast heat-resistant alloys can be identified by designations of the Alloy Casting Institute, now a division of the Steel Founders' Society of America, and the American Society for Testing and Materials.* Some

  • L4 : METALLURGY OF CAST IRON

    2012-8-21 · B. Malleable Iron By a special heat-treatment of white cast iron, iron carbide is separated into iron and free graphite. The free graphite in the microstruc-ture takes the form of irregularly shaped nodules of graphite, Fig-2. This form of graphite is also called temper carbon because it is formed into solid state during heat-treatment.

  • Heat treatment and properties of iron and steel

    2015-11-17 · temperingandcoldtreatment.Chemicalcompositions,heattreatments,andsome properties and usesarepresentedforstructural steels,toolsteels,stainless and heat- resistingsteels, precipitation-hardenable stainlesssteels and nickel-maraging steels.