Cementite is hard and brittle and dominates the microstructure of white cast iron. Thus, white cast iron is hard and brittle and has a white 

Most white cast irons contain less than 4.3% carbon, with low silicon contents to inhibit the precipitation Ferritic Malleable Cast Iron Microstructure.

As seen in Fig: 2, the microstructure of white cast iron is completely different from gray cast iron. In this microstructure, there are no graphite flakes present. The bigger, dark gray, rounded

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 experimental results indicate that the cast irons comprise a dendritic matrix and interdendritic eutectic borides M2B and M′0.9Cr1.1B0.9 

1 shows the microstructure of high Cr alloyed white cast iron in the as-cast state. The matrix structures can be pearlite, austenite, and martensite or some 

Abstract： Under the actual production condition of the traditional technique, it is easy that high chrome white cast iron grinding media forms more internal stress, which is lead to disabled main reason in production and employ condition.The importance of grinding ball cast microstructure is known by analysis hot working whole process, that is, required cast the microstructure can meet the

There are four main types of cast iron, gray, white, ductile and malleable cast iron. Gray cast iron is the most common type and is probably in your kitchen. Live Sales Engineers 24 Hours The most common type, gray cast iron features a graphite microstructure consisting of many small fractures. It's called "gray cast iron" because the

This study presents the characterization of the microstructure of two alloys of white cast iron with high chromium containing 3.8 wt.

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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

Like gray cast iron, white cast iron features many small fractures. The difference is that white cast iron features cementite below its surface, 

Request PDF | Effect of Casting Pressure on Microstructure and Anti-abrasion Property of KmTBCr26 White Cast Iron | The use of liquid die forging technology for alloy casting can optimize the

Most cast irons have a chemical composition of 2.5-4.0% carbon, 1-3% silicon, and the remainder is iron. Grey cast iron has less tensilestrength and shock resistance than steel, but its compressive strength is comparable to low and medium carbon steel. White cast iron displays white fractured surface due to the presence of cementite.

For white and Gray, cast iron combines at 2075 F and 2230 F respectively. It is not an alloy or a simple metal but it is a collection of compounds mix together chemically and mechanically.

White cast iron displays white fractured surface due to the presence of cementite. With a lower silicon content (graphitizing agent) and faster cooling rate 

Microstructures of Cast Iron Janina M. Radzikowska, The Foundry Research Institute, Krako´w, Poland CAST IRON is an iron-carbon cast alloy with other elements that is made by remelting pig iron, scrap, and other additions. For differentia-tion from steel and cast steel, cast iron is defined as a cast alloy with a carbon content (min2.03%)

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

The microstructure of an as-cast 28 wt.% Cr-2.6 wt.% C iron with 0-10 wt.% W addition was studied by Imurai et al. [5], and it was observed that W promoted the formation of W-rich M 7 C 3, M 6 C and M 23 C 6 carbides. Mousavi et al. [6] performed a wear test on a (27-28) wt.% Cr-3 wt.% C- (0-2.5) wt.% W high chromium white cast iron.

26/03/  · White Cast Iron Microstructure Development. For a general microstructure development in high carbon ferrous material and to understand the effect of equilibrium

Fig:- White Cast Iron Microstructure. The typical microstructure of white cast iron, consisting of dendrites of transformed austenite. (pearlite) in a white 

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

The chemical composition of the cast iron is Fe-3.52C-2.51Si-0.49Mn-0.15Mo-0.31Cu wt%. All samples are etched using 2% nital. Colour micrographs are produced by 

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.

high chromium white cast iron alloys, including their classifications, According to the microstructure, cast irons are classified as white, gray, 

The as-cast microstructure of Fe-Cr-C-V white irons consists of M7C3 and vanadium rich M6C5 carbides in austenitic matrix.

The 4 types of Cast iron are presented below along with its composition, Microstructure, properties, Fracture surface and applications. Gray cast iron; White cast iron; Malleable cast iron; Nodular or SG or ductile iron; Grey Cast Iron: These types of cast iron are widely used. Presence of graphite in the form of flakes (like fibre)

01/05/  · The microstructure and properties of 17 wt.% Cr–2.9 wt.% C cast irons with up to 3.17 wt.% Nb additions, in both as-cast and heat treated state, have been studied.Also the

When it's annealed, it becomes malleable cast iron. THE MICRISTRUCTURE OF WHITE CAST IRON • A fracture surface of these alloy has a white appearance and it is 

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

A white cast iron with nano-eutectic microstructure was prepared by an aluminothermic reaction casting. Microstructures of the cast iron were investigated by optical microscope (OM), electron probe micro-analyzer (EPMA), scanning electron microscope (SEM) and X-ray diffraction (XRD). Mechanical properties of the cast iron were tested.