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The heat treatment is the final step in the manufacturing process and it ensures that the microstructure is correct for your application. The heat treatment should be designed based on the chemistry of the part, its section …
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Heat Treatment or Nickel-Chromium White Irons. Nickel-chromium white iron castings are given a stress-relief heat treatment because, properly made, they have a martensitic matrix structure, …
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The aim of this research work was the heat treatment optimization of a high chrome white cast iron in order to obtain a final product with a high hardness (wear resistance).
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There is a huge demand for high-performance materials in extreme environments involving wear and corrosion. High chromium white cast irons (HCWCIs) display better performance than many materials since they are of sufficient hardness for wear protection and can be tailored in chemical compositions to improve corrosion resistance; however, their …
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The utilization of high chromium white cast iron offers several advantages in industrial applications: Superior wear resistance: High Cr white iron exhibits exceptional resistance to abrasive wear, making it suitable for environments with high wear and impact forces. Extended service life: Components made from high Cr white iron have a longer lifespan due to …
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The experimental results show that appropriate heat treatments contribute to a significant improvement on the mechanical properties of selected alloy of HCWCI. The results …
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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 13, 2021 ...
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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
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The article describes the results of experimental studies for the effect of thermal treatment (TTM) of G-X300CrMo27-1 high-chromium cast iron samples in the solid-liquid and liquid state on the ...
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The high chromium white iron, Cr26, was cast from 1500 ℃ as 80 mm diameter balls into a chilled mold. The chemical composition was given in Table 1. The specimens with dimensions of 12 mm´12 mm´19 mm were used for heat treatment and wear tests, and the specimens were cut from the cast bars, respectively. Cutting was done as slow
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The high chromium white cast iron (HCWCI) has been on the scene for decades, with expectations to remain there due to its exceptional wear resistance. HCWCI is mostly applied as-cast, but it can also be used as a coating material. The carbides in HCWCI microstructure, whose composition depends on alloying and heat treatment regime, give this special feature to …
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High-Chromium White Cast Iron is a material highly used in mining and drilling shafts for oil extraction, due to its high wear resistance. ... "The effect of heat treatment on spalling of Cr-Mo white cast iron", Wear of Materials, …
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Heat treatment process of the high chrome cast iron is very important for the chrome alloyed castings, improving its mechanical property. ... Primary analyses of cast microstructure design of high chrome white cast iron grinding media (1) August 13, 2021 - 6:44 am; Casting grinding balls making machine July 21, 2021 - 7:32 am;
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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 rolls from HCCI …
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This article presents a discussion on the melting, pouring, and shakeout practices; composition control; molds, patterns, and casting design; heat treatment; and applications of different classes of nickel-chromium white irons and high-chromium white irons.
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In this blog post, we will explore the process of heat treatment for white cast iron and its impact on the material's properties. Understanding White Cast Iron. ... When the as-cast hardness of the white iron is not sufficient, a high-temperature treatment is employed. The castings are heated to a temperature range of 750-790°C for 8 hours ...
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In the high-chromium irons, as with most abrasion-resistant materials, there is a tradeoff between wear resistance and toughness. By varying composition and heat treatment, these properties …
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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 experimental high chromium cast iron is …
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High-chromium white irons are usually hypoeutectic ones, and they are often applied in wear environments, such as mineral processing, cement production and steel manufacturing industries, and so on [1], [2], [3], [4].The considerable M 7 C 3 chromium carbides in high-chromium white irons provide excellent wear resistance. The usual production route is …
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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
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The aim of this research work was the heat treatment optimization of a high chrome white cast iron in order to obtain a final product with a high hardness (wear resistance). The effect of modifying the maintenance temperature during the different phases of the heat treatment (simple and double temperings and quenching followed by one or two temperings) …
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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].
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1 Introduction. Cast irons can generally be described as ferrous alloys containing carbon content of ≥2.11 wt.%. They are typically classified into five basic types based on by their graphite morphology [].This includes grey cast iron which has graphite in the form of flakes, ductile or nodular cast iron with graphite present in globular form, malleable cast iron which has …
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Microstructural modifications of as-cast high-chromium white iron by heat treatment. J. Mater. Eng. Perform., 18 (2009), pp. 174-181. Crossref View in Scopus ... Solid-state phase transformation in metallic matrix of high-chrome cast iron in subcritical temperature range. Metallofiz. Noveishie Tekhnol., 37 (2015), pp. 1349-1367 (in Russian ...
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By varying composition and heat treatment, these properties can be ... All high-alloy white irons contain chromium to prevent formation of ... When a martensitic white iron is desired for superior abrasion resistance, additions of 0.5 to 3.0%
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Keywords: white cast irons, high chrome white cast irons, heat treatment, XRD investigation . ... (53.19%) in as-cast alloy are the highest compared to other iron specimens, i.e. heat-treated
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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 ...
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How to heat treat ASTM A532 correctly. Get chrome white iron microstructure notes and heat treating trouble shooting tips. Read our blog today.
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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 about the optimal heat …
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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 temperature; the white cast iron Cr28 is …
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