High boron white cast iron is a kind of new wear-resistant material, which with boron substituting for carbon in cast iron composition and 

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

The M7C3 carbides in high Cr white iron are the primary phases of hexagonal shape and can work as the "stoppers" to decrease the wear rate during the wear application [6]. Jingjing Qing, Mingzhi Xu. 2019. "Designing a Graphitic White Iron: Microstructures and Properties." AISTech Conference Proceedings Cleveland, PA. doi: 10.33313

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5094, 1994. white cast iron, Wear, 166, pp. 197-201, 1993. of Materials Science Letters, 12, pp. 615, 1993. balls, Journal of Materials 

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

This compound, also called cementite, is hard and brittle and dominates the microstructure of white iron. Thus, white iron is hard and brittle and has a 

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

White cast iron has a Vickers hardness of 500-600 10), and so the hardness values are somewhat high, which is due to precipitation hardening by Cu in α-Fe. The hardness of annealed Cu-10 mass% Sn alloys is approximately 110 11) , in agreement with the hardness value obtained for Cu alloy areas.

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

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

microstructure of all hypoeutectic high Cr white iron alloys in Figure 1: High chromium iron microstructures in the as-cast; (a) with austenitic matrix 

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2022. 9. 9. · Thermal Properties of White Cast Iron – Ni-Cr-HC Martensitic White Cast Iron. Thermal properties of materials refer to the response of materials to changes in their temperature and to the application of heat. As a solid absorbs energy in the form of heat, its temperature rises and its dimensions increase. But different materials react to the

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

High-chromium white iron with an as-cast austenitic matrix microstructure. With sufficient alloying with molybdenum, manganese, nickel, and copper, pearlitic transformation can be avoided in virtually any cast section. Martensitic structures can be obtained as-cast in heavy-section castings that cool slowly in the mold.

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

The microstructure of white CI contains massive cementite (white) and pearlite. White cast iron derives its name from the white, crystalline crack surface 

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.

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. , 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. performed a wear test on a (27-28) wt.% Cr-3 wt.% C-(0-2.5) wt.% W high chromium white cast iron. The W