white iron microstructure

2017. 8. 23. · CARPENTER, et al[10–11], studied 26.6% chromium white iron microstructure with XRD and electron microscope. It was shown that primary and eutectic austenite revealed a slight difference in lattice parameter and secondary carbides precipitated in the microstructural matrix of the white iron were of the form (Fe,Cr)23C6 and had a cubic

A lower carbon content white cast iron microstructure is shown in Figure 8. The most common matrix in white cast iron is pearlite, but martensite can be produced by heat treatment. Figure 7 (left): Ledeburite in a white cast iron (Fe - 4% C - 0.3% Si - 0.11% Mn - 0.96% Cr) etched with 2% nital (magnification bar is 100 µm long).

2008. 9. 4. · High-chromium white irons are extensively used in applications where good resistance to abrasion wear is required, for example mineral processing, cement manufacturing, and slurry pumping (Ref 1-3).This attractive wear behavior is clearly attributed to the microstructure and the participating phases, both in the as-cast and after heat treatment

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.

1996. 4. 1. · The U.S. Department of Energy's Office of Scientific and Technical Information

White cast irons are extremely wear-resistant yet brittle. They exhibit high hardness as a result of their microstructure containing large iron carbide 

2022. 9. 8. · 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

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; 

The white continuous phase in fig.2 is commentating, and the areas that contain the small, rounded pools are the mixture constituent called ledeburite. Because of the large amount of the continuous cementite phase, white cast irons are usually brittle, very hard, and hard to machine.

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There are also differences in composition—cast iron contains 2–4% carbon and other alloys, and 1–3% of silicon, which improves the casting performance of the 

J.W. Martin, in Materials for Engineering (Third Edition), 2006 White cast iron. White cast iron has a low silicon content and may contain carbide-stabilizing elements (such as Cr). When cooled

2016. 11. 8. · 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

From the present study, niobium additions of 1.79% and 3.98% were added to a 15% Cr-3% C white iron, and their effects on the microstructure, hardness and abrasive wear were analyzed.

The microstructure of this so-called white cast iron therefore contains only cementite instead of graphite. Only after subsequent heat treatment, annealing, does the metastable cementite disintegrate into its final flake graphite form and then belongs to group of the grey cast iron. The micrograph below shows malleable iron with 2.7 % carbon.

Microstructure analysis showed the presence of small amounts of Keywords: As-cast white cast iron, Manganese, Austenite phase, EDS, Carbides, Austenite.

The microstructure consists of primary austenite dendrites surrounded by a eutectic mixture of carbide particles and austenite. In hypoeutectic cast iron, 

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 

Calmet offers Different Types Of Cast Iron White cast iron, Grey cast iron, Malleable cast iron and Ductile cast iron with high quality in USA, Canada and India. +1-714-505-6765; [email protected] the microstructure of the cast iron can vary. Depending upon the application and the preferred mechanical properties, iron castings can be

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2013. 7. 18. · Abstract. High chromium white irons are ferrous based alloys containing 11–30 wt-% chromium and 1.8–3.6 wt-% carbon, with molybdenum, manganese, copper, and nickel sometimes added as additional alloying elements. The microstructure of these alloys typically consists of hard primary and/or eutectic carbides in a matrix of austenite or one of its