Investigation on Microstructure and Wear Resistance of the Plain Carbon Steel Hardfaced by the Fe-Cr-C Electrodes Containing Mo, W, V Elements
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JEFM-1-1_006
تاریخ نمایه سازی: 25 تیر 1398
Abstract:
In this investigate, plain carbon steel cladded by SMAW in single, two and three- pass with two hardface electrodes containing molybdenum, tungsten, and vanadium. Scanning electron microscopy, X-ray diffraction, wear tests and microhardness test were carried out to evaluate the microstructure and wear properties of hardface layers. The results indicated that by increasing of molybdenum concentration in hardface layer, M6C and M7C3 carbides were appeared in the microstructure. Moreover, by increasing the number of hardfaced layers and reducing dilution, the concentration of alloying elements, and the carbides coarser increased at microstructure. Also by increasing the percentage of the molybdenum the hardness of layers increased up to the 61 HRC and 1540 Vickers at the three-pass. In addition by increasing the number of passes the wear resistance of the hardfaced layers increased.
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Authors
M.R. Khanzadeh GharahShiran
Center for Advanced Engineering Research, Majlesi Branch, Islamic Azad University, Isfahan, Iran.
H. Bakhtiari
Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
A. Dadvar
Department of Materials Engineering, Bandarabbas Branch, Islamic Azad University, Bandarabbas, Iran.
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