Cast irons | Types And Application - Learn Mechanical Engineering
Fig. Microstructure For Cast Iron. 1) Gray cast iron: These alloys consists carbon in form graphite flakes, which are surrounded by either ferrite or pearlite. Because of presence of graphite, fractured surface of these alloys look grayish, and so is the name for them. White cast iron: When Si content is low (less than 1%) in combination
PDF Microstructural Characteristics and Mechanical Properties of Heat ...PDF
MICROSTRUCTURAL CHARACTERISTICS OF HIGH CR WHITE CAST IRONS As-cast austenitic and pearlitic microstructures High Cr white cast irons are ferrous alloys containing chromium between 12 and 30%. It is well documented that the microstructure of all hypoeutectic high Cr white iron alloys in the as cast condition consists of a network of M 7 C
Different Types Of Cast Iron | White cast iron, Grey cast iron, Ductile
When the white cast iron is fractured, white coloured cracks are seen throughout because of the presence of carbide impurities. White cast iron is hard but brittle. It has lower silicon content and low melting point. The carbon present in the white cast iron precipitates and forms large particles that increase the hardness of the cast iron.
White Cast Iron - Types, Microstructure, and Applications - Materials Today
Structure of White Cast Iron Final microstructure of white cast iron looks like below; This microstructure depicts the Pearlitic matrix with a continuous thick cementite matrix formed in result of the eutectic reaction. The presence of a thick network is the main reason for the brittleness of respective microstructure. White Iron Types
06/07/ · Depending on the carbon content, white cast iron can be divided into eutectic cast iron (4.3 % C), hypoeutectic cast iron (<4.3 % C) and hypereutectic cast iron (>4.3 % C). The microstructure formation and transformation during solidification and cooling of such types of cast iron are explained in more detail below. Eutectic cast iron
As-cast microstructure design of high chrome white cast iron grinding balls
3.The realization mechanism of as-cast microstructure (1) to determine the proper carbon content, one can ensure that 20% ~ 40% alloy carbides are obtained while leaving high carbon austenite, and the other can make alloy carbides of a single M 7 C 3 type with the proper amount of chromium.
White Cast Iron Microstructure. White iron is too brittle for use in many structural components, but with good hardness and abrasion resistance and relatively low cost, it finds use in such applications as the wear surfaces (impeller and volute) of slurry pumps, shell liners and lifter bars in ball mills and autogenous grinding mills, balls and
Heat treatment effect on microstructure, hardness and ... - SpringerLink
SCANDIAN C, BOHER C, DE MELLO J D B, et al. Effect of molybdenum and chromium contents in sliding wear of high-chromium white cast iron: The relationship between microstructure and wear[J]. Wear, , 267: 401-408. Article Google Scholar SARE I R, ARNOLD B K.
PDF) Development of boron white cast iron - ResearchGate
01/08/ · Eeffect of Boron addition on the microstructure and mechanical properties of ductile iron, GJS-500-7 grade was studied. Three cast batches with the Boron content of 10, 49 and 131ppm were cast in
Quantification of the Microstructures of Hypoeutectic White Cast Iron
Cast iron is an iron-carbon-silicon alloy used in numerous industrial applications, such as the base structures of manufacturing machines, rollers, valves, pump bodies and mechanical gears, among others. The main families of cast irons are: nodular cast iron, malleable cast iron, grey cast iron and white cast iron (Callister, 2006). Their
Cast Iron: Characteristics, Uses and Problems | GSA
In white cast iron, the carbon content is combined chemically as carbide of iron. White cast iron has superior tensile strength and malleability. (most corrosive) element. The composition or microstructure of the iron affects the durability of the object because the rate of corrosion is dependent upon the amount and structure of the
Cast Iron - Microstructure development and properties - Materials Today
For better understanding of cast iron microstructure development, it's better to understand the phase diagram of Fe-Fe 3 C. We mentioned earlier, Cast Iron has carbon percentage in between 2wt% to 6.67 wt%. This region of 4.67 wt% carbon is divided into two sections divided by eutectic reaction line observable at 4.3 wt % carbon.
The microstructure of cast iron ABSTRACT White cast iron produces more cementite than graphite during solidification, it is a hard brittle alloy containing massive amount of fe3c. Alloyed white cast iron is used due to their hardness and wear resistance for abrasive wear. The name was given due to white fractured surface.