The effect of molybdenum (0-3 wt.% Mo) on three-body abrasive wear characteristics of high-chromium (16 and 26 wt.% Cr) white cast iron has been evaluated in the current study and compared with ...
Effect of Cu addition on hardness and microstructural features of low alloy white cast iron; XRD Investigation on Heat Treatment of High Chrome White Cast Irons; The difference in effects of electric current pulses on inoculation of austenite and M7C3 carbides; High-temperature abrasion resistance and wear mechanisms of chilled high …
ABSTRACT: A heat treatment process of high chromium cast iron grinding media with trace alloying elements Mo, V, NB was studied. The heat treatment processes of quenching at 980 °C, tempering at 400 °C and 600 °C was adopted. ... Primary analyses of cast microstructure design of high chrome white cast iron grinding media (1) August …
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 …
An alloy with carbon and chromium in the range of 2.0 to 2.5% and 20 to 25%, respectively, with the addition of Mo and Ni in the range of 1.0 to 1.5% each when heat-treated at a quenching temperature of 1010 °C and tempering temperature of 550 °C produces a hardness in the range of 54 to 56 HRC and a microstructure that consists of …
The invention discloses a heat-treatment method of high-chromium wear-resistant white cast iron Cr28. According to the invention, high-chromium wear-resistant white cast iron Cr28 is heated to 1000-1050 DEG C; the white cast iron Cr28 is heated and the temperature is maintained for 1.5-3h; the white cast iron Cr28 is air-cooled to room …
The objective of the present work is to establish the heat treating parameters necessary to impose to a pair of high chromium white cast irons a hardness figure in the range from 35 to 40 HRC ...
In this context, the properties of hypoeutectic iron of HCWCI containing 25 wt. %Cr-2.5 wt. %C were investigated after destabilisation heat treatments, cooling (slow and fast cooling) to ambient temperatures, their …
The present work analyzes the effect of V, W, and different Cr contents on the microstructure and wear behavior of a high chromium white cast iron. The alloys were characterized by scanning electron microscopy and X-ray diffraction. Results show that the simultaneous addition of V and W promoted the formation of the W6C and VC carbides. …
A ledeburite matrix and Mo-rich M 2 C were obtained with the addition of 6 wt% Mo.. As the carbides are obtained by in situ reaction, the wettability between the carbide and matrix is better. • After a quenching treatment, the M 2 C decomposed into bright white fishbone M 6 C and punctate MC.. The impact toughness of samples …
The success of the heat treatment of the high Cr cast irons can be evaluated according to the degree of attainment of the following goals: • high hardness martensite; …
The heat treatment of these products consists of a high temperature austenisation followed by quenching and two temperings, required in order to increase their overall hardness and to completely eliminate residual austenite. ... High chromium white cast irons are cast products with hard microstructures composed of an important fraction …
In this study, high chrome-based white cast iron (HCWCI) balls were subjected to different heat treatments to yield various amounts of retained austenite, following which they were subjected to ...
Pliant25 is a unique high chrome white iron that has been perfected by Penticton Foundry. Our engineered chemistry together with our proprietary heat treatment allows us to soften this alloy to the point …
The experimental results show that appropriate heat treatments contribute to a significant improvement on the mechanical properties of selected alloy of HCWCI. The …
A detail of the microstructure of iron 4 is shown in Fig. 3 a where a high amount of martensite is observed in the vicinity with the eutectic carbide. The increase of the martensite volume fraction with the increase of the boron addition could seem contradictory with the boron effect reported by the literature for white irons [13] where …
After heat treatment, discal samples with a diameter of 80 mm for hardness test and samples with a dimension of 10×10×55 mm 3 without groove for Charpy impact test were prepared by cutting balls along their radial directions. The HRC hardness was measured using a Rockwell hardness tester with a load of 150 kg, and the impact …
The amount of alloying elements should be enough to assure substantial pearlite in mould-cooled structure, but provides enough hardenability to prevent pearlite formation during air-quenching after austenitisation in the heat-treatment cycle. Heat Treatment of Cr-Mo and High-Cr White Irons: The main heat treatment is hardening (austenitising ...
A billet of hypoeutectic high-chromium white iron (2.5% C, 19% Cr) was spray formed using gas-to-metal ratios of ~0.9, ~1.0, and ~1.1. ... XRD Investigation on Heat Treatment of High Chrome White ...
AI Yunlong, DING Jiayuan, HE Wen, et al. Effects of heat treatment on sliding wear of high chromium white cast iron[J]. Thermal Processing, 2010, 39(3): 46–48. (in Chinese) Google Scholar ZEYTIN H K, YILDIRIM H, BERME B, et al. Effect of boron and heat treatment on mechanical properties of white cast iron for mining application[J].
Abstract: The chemical composition of Cr26 high chromium cast iron and the effects of heat treatment on its hardness, impact toughness were studied in this paper. And its microstructures of this kind of high chromium cast iron treated by different heat treatment technology were studied as well. Their results show that the hardness of the …
Explore the production, use, and properties of high-alloy cast irons, particularly high-alloy white irons used in abrasion-resistant applications. Learn about the role of various …
30% chrome white iron is the most corrosion resistant of the ASTM A532 iron alloys. It has found a real niche in flue-gas desulfurization, as well as other oxidizing environments and some reducing environments. It is not as abrasion resistant as the other high chrome white iron alloys. Learn More: ASTM A532 Data Sheet 30% Cr
XRD Investigation on Heat Treatment of High Chrome White Cast Irons M. Ngqase and X. Pan-This content was downloaded from IP address 52.167.144.47 on 16/08/2023 at 22:49. ... High-alloy white cast iron – the total mass fraction of alloying elements is more than 5%
High-chromium cast iron (HCCI) is widely used for manufacturing mill rolls due to its high wear resistance, hardness, low cost and good adaptability to manufacture [1,2,3,4].Despite the active application of rolls from high-speed steels, HCCI rolls still occupy a large share of the market [].The cast microstructure of the external layer of …
[1] Agunsoye J. O. and Ayeni A. A. 2012 Effect of Heat Treatment on the Abrasive Wear Behaviour of High Chromium Iron Under Dry Sliding Condition Tribology in Industry 34 82-91 Google Scholar [2] Rassim S., Al-Rubaie and Pohl M. 2014 Heat Treatment and Two-Body Abrasion of Ni-Hard 4 Wear 312 21-28 Google Scholar [3] …
Effect of Cu addition on hardness and microstructural features of low alloy white cast iron; XRD Investigation on Heat Treatment of High Chrome White Cast Irons; High-temperature abrasion resistance and wear mechanisms of chilled high-chromium cast irons; Corrosion behavior of newly developed heat treated 10Mn-2Ni-3.5Cr-1.5Cu alloy
Common heat treatment techniques for high Cr white iron include annealing, quenching, and tempering. Annealing is performed to relieve internal stresses and improve machinability. ... Post Tags Hi Chrome 27 400 high chrome High Chromium Ni-Hard White Iron. Prev Post How is Steel Manufactured: A Comprehensive Guide to the Steel …
Explore the properties of high-chromium white iron, its applications in industries requiring exceptional wear and corrosion resistance, and the impact of heat treatment on its hardness and microstructure. Learn …
The influence of heat treatment on microstructure and mechanical properties of high chromium white cast iron alloyed with titanium was investigated.
A Review on Heat Treatment of Cast Iron: Phase Evolution and Mechanical Characterization. October 2022; Materials 15(7109) 15(7109) ... As a result, graphite cast iron's high wear resistance is.
