Manganese Influence on Chromium Distribution in High-Chromium Cast Irons

Archives of Metallurgy and Materials

V. Netrebko¹  I. Volchok¹  S. Byelikov¹ 

[1] METAL TECHNOLOGY DEPARTMENT, ZAPORIZHZHYA NATIONAL TECHNICAL UNIVERSITY 64 ZHUKOVSKOGO ST., 69063, ZAPORIZHZHYA, UKRAINE

关键词: Keywords: cast iron;    chromium;    manganese;    distribution;    microstructure;   

DOI  :  10.2478/amm-2013-0095

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

It is shown that chromium distribution in the metal base of high-chromium cast irons depends on manganese content. According to the X-ray micro-spectral analysis data with the increase of manganese content from 0.72 to 6.49% chromium content decreased in the near-carbide zones. At the same time chromium content in carbides increased. This process obtained particularly strong development inside eutectic colonies of carbides. As a result of it, when total chromium content in the alloy has been 23%, its concentration in the local zones was 12,3%, thus the necessary level of corrosion resistance has not been provided. The minimal chromium content has to amount 23.2%, at 6.49% Mn and 2.2...2.5% C in order to provide corrosion resistance of high-chromium cast irons

【 授权许可】

Unknown