Microstructure and abrasive wear properties of Hi-C medium chromium wear resistant alloy steels after heat treatment (1)

Ning Jiapei, Zheng Kaihong, Zhou Hongming, Wang Haiyan, Long Jun) (1. School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China;2.Guangdong Institute of Materials and Processing, Guangzhou 510651, China) Abstract: The effect of quenching temperature on microstructure and mechanical properties of medium chromium wear resistant alloy steel was studied. The mechanical properties […]

quenching process of the high chrome grinding balls

Brief analysis of heat treatment process of chromium alloy casting ball (2)

quenching hardness of the casting grinding balls

Brief analysis of heat treatment process of chromium alloy casting grinding ball (1)

Abstract: The heat treatment process of chrome alloy full casting ball was analyzed, the heat treatment process curve was determined, and the specific measures to improve the wear resistance of high chromium cast ball were put forward. Keywords: high chromium grinding media balls, heat treatment, abrasive resistance Cheng Huajing , Zhangwei (Ma Anshan Dongyou steel […]

High-chromium Cast Ball Heat Treatment Process

High-chromium Cast Ball Heat Treatment Process Research (2)

Heat treatment process: It is difficult to quench the wear resistant cast ball, mainly because the quenching requires martensite, and the cooling rate must be higher than the critical cooling rate (VK). During quenching, how can martensite be obtained and the effect of stress reduced? This is a major problem in the quenching process. To […]

High-chromium Cast Ball Heat Treatment Process

High-chromium Cast Ball Heat Treatment Process Research (1)

Dang Jun-peng (Aluminium corporation of China zhongzhou branch, Jiaozuo 454174, China) Abstract: High chromium cast iron is considered to be the best of the anti-wear properties and has a good toughness of the material, So in this cast iron abroad used widely. For years the ball from high chromium cast in the research and production […]

HBS change of samples

Influence of Heat Treatment on Mechanical Properties and Microstructure of Low Alloy Wear Resistant Cast Steel (2)

The tensile specimen (cast steel) is cut from the button spindle with the size as shown in Figure 5 and the thickness is 1mm.

HBS change of samples

Influence of Heat Treatment on Mechanical Properties and Microstructure of Low Alloy Wear Resistant Cast Steel

HU Zhi-jun, ZHAO Xiao-peng, YANG Yi-tao (School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China) Abstract: The influences of normalizing and tempering temperature on mechanical properties and microstructure of low alloy wear-resistant cast steel were investigated by using a vacuum arc furnace in lab situations. The results show that normalizing can refine the […]

high chrome cast iron grinding balls 1

Influence of Heat Treatment on Structure and Properties of High Chrome Cast Iron Grinding Ball (2)

Without heat treatment, the as-cast cast iron grinding ball’s microstructure is austenite + eutectic carbide, which is heated at lower quenching temperature (such as below 950 °c). After Air Cooling, the microstructure contains austenite, eutectic carbide, and martensite; there is also a large troostite (see Fig. 2A). At higher quenching temperature (above 980 °C), the […]

Influence of Heat Treatment on Structure and Properties of High Chromium Cast Iron Grinding Ball (1)

Abstract: The effects of heat treatment on the hardness, impact toughness, and casting high chrome grinding ball’s microstructure have been investigated. The results show that the hardness of the ball quenched at 980 ℃and then tempered at 400 ℃ is up to 60. 5 HRC; meanwhile, the impact toughness of that ball is 6. 8J/ […]

eat treating process of Cr26

Microstructures and Properties of Cr26 High Chromium Cast iron and its heat treatment (1)

Mao Shuang Liang, Shui Heng Yong, Chen Shan shan, Zhao Ai min ( 1. Shanxi Baiyi Machinery Co., Ltd., Taiyuan 030003, China; 2. Research Institute of Metallurgy Engineering, Beijing University of Science and Technical, Beijing 100083, China) Abstract: The chemical composition of Cr26 high chromium cast iron and the effects of heat treatment on its […]