Initial Assessment of Abrasive Wear Resistance of Austempered Cast Iron with Vermicular Graphite

Archives of Metallurgy and Materials

A. Jakubus¹  M. S. Soiński¹ 

[1] CZ?STOCHOWA UNIVERSITY OF TECHNOLOGY, AL. ARMII KRAJOWEJ 19, 42-200 CZ?STOCHOWA, POLAND

关键词: Keywords: silica sand;    patternless process;    cutting parameters;    gypsum;   

DOI  :  10.2478/amm-2014-0183

学科分类：金属与冶金

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

【 摘 要 】

The work compares the abrasive wear resistance of cast iron containing vermicular graphite, measured in the as-cast state and after austempering carried out at 290°C, 340°C, or 390°C. Theexaminations were performed by means of the T-01M tribological tester using the pin-on-disc configuration. Specimens used for examinations were taken from the end tabs of the tensile specimens, these being cut out of the test walls of the double-leg keel block test castings. Examinations proved that the austempering process increases the abrasive wear resistance of vermicular cast iron by several times as compared with the as-cast material. A tendency for a slight decrease in abrasive wear with an increase in austempering temperature can be stated. The coefficient of friction took a little higher values for cast iron after thermal treatment than for the as-cast material. The work was completed with roughness examination by means of electron scanning microscopy.

【 授权许可】

Unknown