Microstructure and properties of high chromium …
Keywords: High chromium white irons, Microstructure, Carbide precipitation, Subcritical heat treatment, Austenite …
HC28 HIGH CHROME WHITE IRON
High Chromium Iron is recommended for applications which involve both corrosion and abrasion. Townley's . HC28 alloy is particularly well suited for slurry pump parts and pipe fittings in coal prep operations and coal fired power stations. HC28's abrasion resistance is comparable to chrome-nickel irons (ASTM A-532 Class
Microstructure and mechanical properties of a Mo alloyed high …
A ledeburite matrix and Mo-rich M 2 C were obtained with the addition of 6 wt% Mo.. As the carbides are obtained by in situ reaction, the wettability between the carbide and matrix is better. • After a quenching treatment, the M 2 C decomposed into bright white fishbone M 6 C and punctate MC.. The impact toughness of samples …
Schematic of the heat-treatment schedule used for the experimental high
Download scientific diagram | Schematic of the heat-treatment schedule used for the experimental high chrome white cast iron. from publication: The role of retained austenite on performance of ...
CN102899469B
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 …
SAE AISI 4140 Steel Properties, Material Heat Treatment, …
SAE AISI 4140 Alloy Steel. SAE 4140 (AISI 4140 steel) is a Cr-Mo series (Chrome molybdenum series) low alloy steel, the material has high strength and hardenability, good toughness, small deformation during quenching, high creep strength and long-lasting strength at high temperature. 4140 Steel Uses. AISI SAE 4140 alloy steel can be made …
Heat treatment of chrome tungsten high speed tool steels
Heat treatment of chrome tungsten high speed tool steels by Perlstein, Harris; Lesser, David Barnes. Publication date 1914 Collection PaulVGalvinLibIIT; carli_lib; americana Contributor Paul V. Galvin Library, Illinois Institute of …
Heat treatment process of chrome alloy cast balls grinding …
Abstract: The heat treatment process of chrome alloy full casting ball was analyzed, the heat treatment process curve was determined, and the specific measures to improve the wear resistance of high chromium cast ball were put forward. ... Primary analyses of cast microstructure design of high chrome white cast iron grinding media (1) August 13 ...
Heat Treatment in High Chromium White Cast Iron Ti Alloy
The influence of heat treatment on microstructure and mechanical properties of high chromium white cast iron alloyed with titanium was investigated.
Heat treatment for high chromium high carbon stainless steel
a heat treatment process which can reduce the hardness to a level as low as C20-C25 making it possible to readily machine cast parts made of such steels and also to then reharden the machined part. While the examples which appear herein deal with processing Zevescal W steel, it should be recognized that the process should be suitable for …
High-chrome wear-resistant cast iron material and heat treatment …
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 …
Effect of the heat treatment mode of high chrome iron …
Heat treatment is an important stage in the technology of rolling rolls, due to the fact that the thermal stresses that occur during rapid or uneven heating summing up with the rather high ...
High-chrome wear-resistant cast iron material and heat treatment …
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 …
Metal Treatments | Heat Treated Metal | Aalberts
Specializing in high-quality metal treatments, Aalberts Surface Technologies brings strength, durability, and precision to every project we undertake. ... vacuum heat treatment; ... making it a longer-lasting and vastly superior alternative to chrome plated bar in engine cylinder applications. learn more. find a location Each Aalberts facility ...
The Hardening -Toughening Heat Treatment Process Of HiGH Chrome …
Abstract： The influence of quenching-tempering heat treatment, conventional austempering heat treatment and multi-stage austenitizing austempering heat treatment on the microstructure and property of high chrome cast iron grinding balls were comparatively investigated. The results show that the impact toughness and impact …
What is Chrome White Iron – ASTM A532?
The chromium in high chrome white iron reduces the cooling rate required to produce carbides throughout the material, allowing massive castings to be manufactured with carbides throughout their …
Influence of Heat Treatment on the Microstructure of a High …
The aim of this work was the study of the heat treatment optimisation of high chrome steels used for the manufacture of rolling rolls in order to obtain a final product with a high hardness and wear resistance and taking into account the very large dimensions typical of these products. The effect of modifying the maintenance temperature and time …
Microstructure and properties of high chromium cast …
Different combinations of critical and subcritical heat treatments variously modify the initial as cast microstructure of high chromium white cast irons leading to secondary carbide precipitation ...
Study of the Hardening-toughening Heat Treatment Process of High Chrome
Abstract： The influence of quenching-tempering heat treatment, conventional austempering heat treatment and multi-stage austenitizing austempering heat treatment on the microstructure and property of high chrome cast iron grinding balls were comparatively investigated. The results show that the impact toughness and impact …
Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS
either while the casting is cooling in the mold or during subsequent heat treatment. i)Chromium. Typical effects of alloying elements on depth of chill. ... To a large extent, the metal matrix in high-chromium irons has characteristics of tool steel. It can be made tough to increase the tolerance to impact loading, or it
Heat Treatment in High Chromium White Cast Iron Ti Alloy
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...
High Chromium White Cast Iron (High Cr White Iron)
Heat treatment is an essential step in optimizing the properties of high Cr …
Chrome plating and Hydrogen Embrittlement Relief
Shotpeening will increase the fatigue life of some steels as much as 200 percent. Normal treatment of high strength steel parts would be: pre heat treat 190 °C for 2 hrs after grind, shotpeen 12A2, Chromium plate, heat treat 190 °C for 3 hrs, final grind, heat treat 1 hr at 190 °C to relieve grinding stress, magnetic particle inspect.
Heat Treating of High-Alloy White Irons
An austenitizing heat treatment usually comprised heating at temperatures between 750 and 790°C (1380 and 1450°F) with a soak time of 8 h. Air or furnace cooling, not over 30°C/h, was conducted followed by a tempering/stress-relief heat treatment. Refrigeration heat treatment is the more commonly practiced remedy for low hardness today.
Alloy data sheet high chrome white iron 25%
The 25% Cr alloy is the most common high chrome white iron poured at Penticton Foundry. ... Full through-hardness can be obtained in 8 inch sections via alloying and heat treatment. Penticton Foundry can offer machining of 25% Cr. Welding is not recommended on 25% Cr. Reference Specifications
Optimizing Wear Resistance and Impact Toughness in High …
An alloy with carbon and chromium in the range of 2.0 to 2.5% and 20 to 25%, respectively, with the addition of Mo and Ni in the range of 1.0 to 1.5% each when heat-treated at a quenching temperature of 1010 °C and tempering temperature of 550 °C produces a hardness in the range of 54 to 56 HRC and a microstructure that consists of …
Method for manufacturing high-chrome cast iron …
A manufacture method for HI-chrome cast iron for grinding balls, founding is: the melting in 100KW, 10kg medium-frequency induction furnace of sample blank, smelting temperature is 1450 ℃～1500 ℃, adopts high temperature casting, tapping temperature is 1400 ℃ of left and right; Thermal treatment process is: quench 980 ℃, air cooling is to room …
High Chrome Heat Treatment
Heat treatment is the process by heating, heat preservation, cooling the high chrome ball, as well as high chromium alloy wear-resistant material internal ... Chrome s teel ball, or high carbon high chrome steel balls, ...
D2 Tool Steel
Fabrication and Heat Treatment Heat Treatment Forging Annealing Tempering Applications Introduction. Cold-work tool steels include the high-carbon, high-chromium steels or group D steels. These steels are designated as group D steels and consist of D2, D3, D4, D5, and D7 steels. These steels contain 1.5 to 2.35% of carbon and 12% of …
high chrome cast iron heat treatment
Microstructural Modifications of As-Cast High-Chromium ... To summarize, heat treatment D (H.T.D) that applies destabilization after subcritical heat treatment attains an increase in the hardness of the white iron and possibly an increase in the wear abrasion resistance as compared to the conventional destabilization—subcritical heat treatment (H.T.B).