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

The microstructure of the high boron white cast iron comprises a dendritic matrix and interdendritic eutectic boride M 2 B in as-cast condition, where M represents Cr, Fe, or Mn. The boride morphology is much like that of carbide in high chromium white cast iron, but its microhardness is higher than carbide.

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

The microstructure of hypoeutectic white cast irons containing between 15% and 30% Cr is mainly composed of eutectic carbides in an austenite matrix, 

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

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

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

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%)

16/08/  · 2.As-cast microstructure design. The organization is dependent only on the chemical composition and cooling rate and is assured by the following major technical measures. Increasing carbon content can increase the volume of carbides in the microstructure on the one hand. On the other hand, it can avoid the low carbon martensite matrix left

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