production of NI-HARD martensitic white cast iron.
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production of NI-HARD martensitic white cast iron.

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Published by International Nickel in (s.l.) .
Written in English

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Open LibraryOL14108881M

Download production of NI-HARD martensitic white cast iron.


The main reason for the use of SS over cast iron is that for the job, the SS can be made lighter, stronger, and thinner than cast iron can be. For a vehicle which weighs relatively little when compared to a car, the SS holds up great to the frictional/torsional forces created during the braking process.   introduction to Cast Iron 1. 1 INTRODUCTION Iron, the silvery-whitish metal, is the most important of metals since it forms the basis of the spectrum of steels and cast iron. Today in industries steel and cast iron comprise well over 80% by weight of Cast iron and steel. Pure iron* is not an easy material to produce. Types of Cast Iron Compacted graphite iron (CGI) 1. C: %, Si: % 2. Lower content of Mg or Ce 3. Worm-like (vermicular) graphite particles • higher thermal conductivity • better resistance to thermal shock • lower oxidation at elevated temperature Chapter 11 Production of Cast Iron Adapted from Fig, Callister Size: 2MB.   Abrasion-Resistant White Cast Iron 4-ASTM A_AM Ni-Hard. Table 2 Wear-resistant white cast iron chemical composition and mechanical properties of .

There are two main types of white irons. Ni-hard comes in. Ball grinding mill Liners High Cr white iron Martensitic. Molybdenum alloying in cast iron and steel.   Alloy cast irons can exhibit very interesting structures. As an example, Figure 19 shows as-cast Ni-Hard cast iron etched with aqueous 10% sodium metabisulfite. This revealed the high-carbon plate martensite very well. There is retained austenite visible within the martensitic matrix and the white, continuous phase is carbide. @article{osti_, title = {Metallographic characterization of hypoeutectic martensitic white cast irons: Fe-C-Cr system}, author = {Pero-Sanz, J A and Plaza, D and Verdeja, J I and Asensio, J}, abstractNote = {High wear resistance and low cost are among the most appreciated properties for the non-alloyed white cast irons. Their toughness levels, however, are poor. Cast irons, alloys of iron, carbon, and silicon, contain carbon as graphite (pure carbon), as carbide (Fe 3 C), or in solid solution in austenite (austempered ductile iron (ADI), matrix austenite with –% carbon). Cast irons represent the largest tonnage of cast-to-shape products produced worldwide, million tonnes in , not including that produced in the countries of the former.

@article{osti_, title = {Comparison of three Ni-Hard I alloys}, author = {Dogan, Omer N and Hawk, Jeffrey A and Rice, J}, abstractNote = {This report documents the results of an investigation which was undertaken to reveal the similarities and differences in the mechanical properties and microstructural characteristics of three Ni-Hard I alloys. formed in high chromium white cast irons contained more than 5% V. The established disagreement appears to be a result of different cooling conditions, on one hand, and of the fact that vanadium carbides are dif-ficult to notice due to their small volume fraction and size, on the other hand. Fig. 2. TEM Micrograph of the Fe–Cr–C–V white iron. Ni-Hard 4 is a Nickel-Chromium white cast iron. which provides consistent wear life in a variety of applications including slurry pumps, mill liners, pipe fittings, wear backs, log teeth, pulverizer parts and other wear resistant castings. Over fifty years of use in industrial applications has proven this alloy to be. Other articles where Ni-Hard is discussed: iron processing: High-alloy iron: For example, Ni-Hard, a white iron containing 4 to 5 percent nickel and up to percent chromium, is used to make metalworking rolls. Irons in the Ni-Resist range, which contain 14 to 25 percent nickel, are nonmagnetic and have good heat and corrosion resistance.