The Influence Of Temperature Gradient On Stereological Parameters Of Carbide Phase On Cross-Section Of Abrasive Wear Resistant Chromium Cast Iron

Archives of Metallurgy and Materials

A. Studnicki¹  T. Wróbel¹  J. Szajnar¹  J. Suchoń¹ 

[1] SILESIAN UNIVERSITY OF TECHNOLOGY, DEPARTMENT OF FOUNDRY, 7 TOWAROWA STR., 44-100 GLIWICE, POLAND

关键词: Keywords: casting;    chromium cast iron;    crystallization;    TGDA;    structure;   

DOI  :  10.1515/amm-2015-0297

学科分类：金属与冶金

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

【 摘 要 】

In the paper analysis of temperature gradient and parameters of structure on casting cross-section of abrasive wear resistant chromium cast iron at carbon content of 2,5%wt. and chromium 17%wt. with nickel and molybdenum additives are presented. The castings were made with use of special tester ϕ100mm (method of temperature gradient and derivative analysis) with temperature recording in many points from thermal centre to surface (to mould) of casting. Registered cooling curves were used to describe the temperature gradient on cross-section of analyzed casting. On the basis of determined curves of temperature gradient measurement fields were selected to make the quantitative studies of structure. The results of studies show significant influence of temperature gradient on quantitative parameters of chromium cast iron structure. Moreover was affirmed that exists a critical temperature gradient for which is present rapid change of quantitative parameters of chromium cast iron structure.

【 授权许可】

Unknown