Analysis of the High Chromium Cast Iron Microstructure ...
Analysis of the High Chromium Cast Iron Microstructure after the Heat Treatment D. Kopyci ński, E. Guzik, D. Siekaniec *, A. Szcz ęsny AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland *Corresponding author. E-mail address: [email protected] Received 30.04.2014; accepted in revised form 09.05.2014 Abstract
CN104195420A - High-chrome wear-resistant cast …
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.
Heat Treating ASTM A532 | Chrome White Iron | …
Case Study: Read this case study for a specific example of chrome white iron outperforming AR plate. Microstructure Notes 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.
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/impact toughness combination is reported.
Heat Treating of High-Alloy White Irons :: Total …
In the heat treatment of any white cast iron, care must be taken to avoid cracking by thermal shock; never place the castings in a hot furnace or otherwise subject them to rapid heating or cooling. The risk of cracking increases with the complexity of the casting shape and section thickness.
Alloy data sheet high chrome white iron 25% | …
ASTM A532 Class III Type A. The 25% Cr alloy is the most common high chrome white iron poured at Penticton Foundry. This alloy has great abrasion resistant properties especially against gouging, grinding and scratching. 25% Cr material can be machined to meet tighter tolerances like those found in pump and piping type castings.
Heat treatment and properties of iron and steel
temperingandcoldtreatment.Chemicalcompositions,heattreatments,andsome properties and usesarepresentedforstructural steels,toolsteels,stainless and heat- resistingsteels, precipitation-hardenable stainlesssteels and nickel-maraging steels.
High-chromium (22-34 per cent) Cast Iron Alloys and Their ...
High-chromium (22-34 per cent) Cast Iron Alloys and Their Simulated Behaviour at the Sugar Industry E Zumelzu*, 0 Opitz and C Cabezas Instituto de Materiales y Procesos Termomecanicos. Uni versidad Austral de Chile, Casilla 567, Valdivia, Chilc and A Parada and L Goyos Facultad de Ingenierfa Mecani ca. ISPJAE. La Habana, Cuba
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 ...
Heat Treatment of Cast Irons | 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, properly made, they have an as-cast martensitic matrix structure.
Heat treatment process of the high chrome cast …
ABSTRACT: A heat treatment process of high chromium cast iron grinding media with trace alloying elements Mo, V, NB was studied. The heat treatment processes of quenching at 980 °C, tempering at 400 °C and 600 °C was adopted.
Heat treatment process for high chromium …
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 stone composition selection, heat treatment process determination, modifier selection, good carbide type and wear mechanism.
Effect of Heat Treatment on Microstructure and Mechanical ...
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 …
The high controlled percentage of chromium helps to retard the formation of graphite and stabilize the carbides. The article of D. Kopyciński et al. 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.
Microstructural Modifications of As-Cast High …
4-9-2008 · The effect of each heat treatment on the hardness of the alloy was correlated with the attained microstructure. Advertisement. Springer Nature is making SARS-CoV-2 and COVID-19 research free. View ... Microstructural Modifications of As-Cast High-Chromium White Iron by Heat Treatment.
(PDF) Heat Treatment in High Chromium White …
Heat Treatment in High Chromium White Cast Iron Ti Alloy Article (PDF Available) in Journal of Metallurgy 2014:1-9 · April 2014 with 1,533 Reads How we measure reads
Wear resistance of high chromium white cast iron for coal ...
After destabilization treatment, the results show wear behavior differences in the II D alloy, as-cast and annealed. 2. Bibliographic review 2.1. High-chromium white cast iron characteristics High-chromium white cast irons are ferrous alloys containing 11-30% Cr and 1.8-3.6% C along with variable amounts of molybdenum, manganese, copper and ...
Effects of Heat-Treatment on the Microstructure …
The variations of microstructure and mechanical properties of a high-chromium cast iron for rolls were studied from as-cast to the final heat treatments. Results show that the as-cast microstructure of the HCCI consists of M 7 C 3 carbide, M 23 C 6 carbide, martensite matrix, and retained austenite. The large dendritic M<sub>7</sub>C<sub>3</sub> carbide surrounds the matrix, and the M<sub>23 ...
annealing and re-hardening ASTM A532-93 Class …
My question is, can high chrome cast iron be "heat treated" to re-harden to 500 HB after annealing or even tempering to 400? Some of the curves in the "Abrasion Resistant Cast Iron Handbook" suggest some high chrome irons can end up with vastly different hardnesses even after tempering to the same temperature, depending on retained austenite.
High Chrome Oil Quenching Casting Iron Balls Cr …
Special High Chrome Oil Quenching Casting Iron Ball Cr:20-30 For Ball Mill Grinding . THE PROCESS LINE OF PRODUCTION: raw materilals----scientific proportioning----electric furnaxe smelting----assay before furnace----mould forming----polishing----Heat treament----Dimension test----Hardness test----Packing----Transportation----Sea freightWe are one of the largest factory specialized in ...