white cast iron microstructure

The term cast iron refers to iron-carbon-silicon alloys that contain 2.5-4 % carbon and usually 1-3 % silicon. In grey irons, the carbon is present as graphite; in white cast iron it is present in the form of iron carbide and alloy carbides. Cast iron has good castability and machinability, as well as moderate mechanical properties.

The microstructure and mechanical properties of high chromium white cast iron with composition: 2,6÷3,4% C; 0,9÷1,1% Si; 0,8÷1,1% Mn; 1,0÷1,3% Mo; 

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

High-chromium white cast irons are based on the iron–chromium–carbon system. These alloys present an as-cast microstructure composed of a 

white cast iron microstructure (Fig. 4) does not contain free graphite as does gray iron, malleable iron, or ductile iron. The fracture surface of this alloy appears white. In Fig. 4 the dark

The microstructure of the unalloyed iron generally consists of M C carbides (Alp and Wazzan, 2005). Figure 6 (Plates 1-7) shows that the cooling rate of the heat treated specimens have dramatic

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.

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

Whiteheart malleable cast iron - It is a decarburized cast iron. The microstructure of whiteheart malleable cast iron depends on section size. Small sections contain pearlite and temper carbon in ferritic substrate.

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

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.

Corpus ID: 138556078; White Cast Iron with the Microstructure in situ Composite @article{Kopyciski WhiteCI, title={White Cast Iron with the Microstructure in situ Composite}, author={Dariusz Kopyciński and Edward Guzik and Andrzej Szczęsny and R. Gilewski and D. Siekaniec}, journal={Archives of Foundry Engineering}, year={ } }

Melting Point of White Cast Iron – Ni-Cr-HC Martensitic White Cast Iron. Melting point of martensitic white cast iron (ASTM A532 Class 1 Type A) steel is around 1260°C. In general, melting is a phase change of a substance from the solid to the liquid phase. The melting point of a substance is the temperature at which this phase change occurs

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

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

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

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 metallographic specimen preparation process formicrostructural investigations of cast iron specimens usually consists of five stages: sampling, cold or hot mounting, grinding, polishing, and etching with a suitable etchant to reveal the microstructure. Each stage presents particular problems in the case of cast iron.

ABSTRACT THE MICROSTRUCTURE OF CAST IRON: In the experiment, the microstructures of five samples of different cast iron forms were observed and investigated under the optical

Keywords: hypoeutectic white cast iron, image processing and analysis, mathematical morphology, artificial neuronal network, image quantification. Page 2. 2. 1.

Cast irons typically contain 2-4 wt% of carbon with a high silicon concentrations and a greater concentration of impurities than steels. The carbon equivalent (CE) of a cast iron helps to distinguish the grey irons which cool into a microstructure containing graphite and and the white irons where the carbon is present mainly as cementite.

21/03/  · This microstructure is of white cast iron with 3-3.5 wt% C. In this microstructure, we clearly see two phases appearing in the microstructure. While you perform etching of material,

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 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

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%)

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 

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

Therefore, in this part will discuss on white cast iron and its microstructure. Then, it is followed by mechanical properties and sand casting process. 2.2 METAL CASTING PROCESS Casting is a 6000 year young process which is mentioned in several Sanskrit works

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 

The microstructure of white cast iron contains cementite (white) and pearlite. It contains interdendritic cementite (white) which sometimes has a Widmanstiitten (‘spiky’) appearance.

chromium cast iron. They found that tungsten can effectively improve the hardness of the matrix and wear resistance of the high chromium cast iron. CHUNG, et al[3], investigated the effect of alloying titanium addition on the microstructure and wear resistance of hypereutectic high chromium white cast iron. The results showed that a fine