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网页2018年6月5日 Four heat treatment schedules were applied to 14.6 wt pct Cr-2.2 wt pct Mn-1 wt pct Ni cast iron to improve its machinability: (a) one-step continuous anne of this work is to study the effect of different heat treatments to formulate the optimal concept of 网页2011年7月29日 In the present work, a methodology was developed combining the practical knowledge on the production technology of high Cr cast iron castings with the use of CT 网页2009年12月1日 In the present work, the sub-surface microstructure of a heat treated and worn 26 wt% Cr white cast iron was investigated to gain 网页Wear resistance of high Cr white cast irons can be improved by means of heat treatment. This type of cast iron alloy may present a microstructure with retained austenite. The 网页The article of D. Kopyciński et al. presents results of heat treatment on the high chromium cast iron. The study was carrying out on samples cut from the casting made from chromium cast iron. Those were hardened at 网页2020年6月2日 The effect of chromium (Cr) content on heat treatment behavior of multi-alloyed white cast iron with basic alloy composition of 5 mass% Mo, W and V each and 2 网页2018年12月12日 The most common heat treatment applied to gray cast irons is stress relief because of non-uniform cooling of castings and annealing to improve machinability. Subcritical heating is used for both. 网页2014年2月3日 The influence of heat treatment on microstructure and mechanical properties of high chromium white cast iron alloyed with titanium was investigated. The austenitizing temperatures of 980°C and 1150°C 网页2023年2月2日 Hypereutectic High Chromium Cast Iron (HHCCI) is a new type of corrosion-wear-resistant material developed from ordinary high chromium cast iron by increasing 网页2019年7月4日 The abrasive wear and corrosion behavior of as-cast, heat-treated and tempered high chromium white cast iron was studied, and the results were evaluated by 网页2022年12月30日 The heat treatment behavior of semi-multi-alloyed white cast iron with relatively lower carbide-forming elements compared with regular multi-alloyed white cast iron was investigated. 网页2019年12月21日 [3] Nyokong F. and Pan X. 2019 A Review on Usage of High Chrome White Cast Irons in South Africa (Tamil Nadu, India) Google Scholar [4] Shaoping Z., Yehui S., Hao Z. and Dequan C. 2015 Heat Treatment Effect on Microstructure, Hardness and Wear Resistance of Cr26 White Cast Iron Chinese Journal of Mechanical Engineering 28 网页2009年4月1日 1.. IntroductionHigh chromium cast irons are commonly used for wear-resistance applications in the mining and minerals industry due to their excellent abrasion resistance (Tabrett and Sare, 1998, Pearce, 2002).In the as-cast condition, the hard alloy eutectic carbides [(Fe,Cr) 7 C 3] embedded in a predominant martensite matrix that 网页2016年6月14日 The variations of microstructure and mechanical properties of a high-chromium cast iron for rolls were studied from as-cast to the final heat treatments. Results show that the as-cast microstructure of the HCCI consists of M 7 C 3 carbide, M 23 C 6 carbide, martensite matrix, and retained austenite. The large dendritic 网页2023年2月2日 Hypereutectic High Chromium Cast Iron (HHCCI) is a new type of corrosion-wear-resistant material developed from ordinary high chromium cast iron by increasing the chromium and carbon content and is often used in abrasive environments where wear and corrosion interact. The corrosion wear resistance of the HHCCI is related to the number, 网页2022年11月21日 Heat and Corrosion Resistant Castings Nickel Institute 网页2020年11月18日 The most common heat treatment applied to gray cast irons is stress relief because of the non-uniform cooling of castings and annealing to improve machinability. Subcritical heating is used for both. Stress relief is done between 550-650°C (1020-1200°F) without significantly lowering strength and hardness. Heat treatments of ductile cast iron 网页2023年2月2日 Hypereutectic High Chromium Cast Iron (HHCCI) is a new type of corrosion-wear-resistant material developed from ordinary high chromium cast iron by increasing the chromium and carbon content and 网页2023年2月11日 If the CEV of un-alloyed grey iron is low (3.27-3.37), the as-cast strength and hardness is high (case 1 in Table 15.10); Normalising (heat at 900°C for 1½ hr., air-cool) almost restores these properties; but the unalloyed cast iron with high CEV and low Mn%, not only has low as-cast tensile Strength and hardness, but normalising decreases it 网页An austenitizing heat treatment usually comprised heating at temperatures between 750 and 790°C (1380 and 1450°F) with a soak time of 8 h. Air or furnace cooling, not over 30°C/h, was conducted followed by a tempering/stress-relief heat treatment. Refrigeration heat treatment is the more commonly practiced remedy for low hardness today. 网页2022年12月30日 The heat treatment behavior of semi-multi-alloyed white cast iron with relatively lower carbide-forming elements compared with regular multi-alloyed white cast iron was investigated. 网页2009年12月1日 Abstract Different combinations of critical and subcritical heat treatments variously modify the initial as cast microstructure of high chromium white cast irons leading to secondary carbide precipitation of different extent and nature. Destabilisation (critical heat treatment) of austenite at 970°C for 25 h followed by annealing (subcritical heat 网页2014年8月16日 TABRETT C P, SARE I R. The effect of heat treatment on the abrasion resistance of alloy white irons[J]. Wear, 1997, 203–204: 206–219. Article Google Scholar YUAN Zizhou, YU Jinfeng, KUANG Yi. Quenching process on mechanical properties of KmTBCr26 high chromium cast iron[J]. Metal Heat Treatment, 2004, 29(5): 26–29. (in 网页2023年2月2日 Hypereutectic High Chromium Cast Iron (HHCCI) is a new type of corrosion-wear-resistant material developed from ordinary high chromium cast iron by increasing the chromium and carbon content and is often used in abrasive environments where wear and corrosion interact. The corrosion wear resistance of the HHCCI is related to the number, 网页2008年2月1日 ustralia) Abstract: The effect of heat treatment mode on the microstructure of Fe-Cr-B cast iron alloys was investigated in this stone by comparing the difference of precipitation patterns of secondary particles after thermal cycling treatment (TCT) with those after normal heat treatment (NHT). No obvious differences were found in precipitation 网页2020年11月18日 The most common heat treatment applied to gray cast irons is stress relief because of the non-uniform cooling of castings and annealing to improve machinability. Subcritical heating is used for both. Stress relief is done between 550-650°C (1020-1200°F) without significantly lowering strength and hardness. Heat treatments of ductile cast iron 网页2018年1月16日 Heat Treatment Tips and Notes for ASTM A532 Austenitization Austenitization must be done to castings made from chrome white iron to ensure a martensitic matrix and provide the highest 网页2023年2月2日 Hypereutectic High Chromium Cast Iron (HHCCI) is a new type of corrosion-wear-resistant material developed from ordinary high chromium cast iron by increasing the chromium and carbon content and 网页2023年2月11日 Low-alloy pearlitic white irons have hardness between 350-550 BHN, whereas high-alloy white irons have between 450-800 BHN. High-alloy white cast irons normally have austenite matrix in as-cast state, but is changed to hard martensite by heat-treatment. Carbon content is high when maximum abrasion-resistance is desired, but is 网页2023年2月5日 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; Related Products. Trolley Type Heat Treatment Machine August 4, 2020 3:19 am; Automatic screw rolling steel balls production line October 31, 2019 
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