Microstructural, mechanical, and electrochemical analysis of carbon doped AISI carbon steels

被引：0
作者：
Ishtiaq M. [1 ,2 ,3 ]
Inam A. [3 ]
Tiwari S. [1 ,2 ]
Seol J.B. [1 ,2 ]
机构：
[1] Department of Materials Engineering and Convergence Technology, Gyeongsang National University (GNU), Jinju
[2] Department of Materials Engineering and Convergence Technology, Center for K-metal, Gyeongsang National University (GNU), Jinju
[3] Institute of Metallurgy and Materials Engineering, University of the Punjab, Lahore
来源：
Applied Microscopy | / 52卷 / 1期
基金：
新加坡国家研究基金会;
关键词：
Carbon steels; Corrosion rate; Electrochemical; Heat treatments; SEM;
D O I：
10.1186/s42649-022-00079-w
中图分类号：
学科分类号：
摘要：
The effect of carbon doping contents on the microstructure, hardness, and corrosion properties of heat-treated AISI steel grades of plain carbon steel was investigated in this study. Various microstructures including coarse ferrite-pearlite, fine ferrite-pearlite, martensite, and bainite were developed by different heat treatments i.e. annealing, normalizing, quenching, and austempering, respectively. The developed microstructures, micro-hardness, and corrosion properties were investigated by a light optical microscope, scanning electron microscope, electromechanical (Vickers Hardness tester), and electrochemical (Gamry Potentiostat) equipment, respectively. The highest corrosion rates were observed in bainitic microstructures (2.68–12.12 mpy), whereas the lowest were found in the fine ferritic-pearlitic microstructures (1.57–6.36 mpy). A direct correlation has been observed between carbon concentration and corrosion rate, i.e. carbon content resulted in an increase in corrosion rate (2.37 mpy for AISI 1020 to 9.67 mpy for AISI 1050 in annealed condition). © 2022, The Author(s).
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