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| Effect of Carbon Content and Microstructure on Corrosion Resistance of Low Alloy Steels |
| GUO Jia1,YANG Shanwu1,SHANG Chengjia1,WANG Ying2,HE Xinlai1 |
| 1. Material Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;2. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China |
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Abstract The corrosion resistance and corrosion behavior of low alloy steels with different carbon content and different microstructure were investigated, and compared with a commercial weathering steel 09CuPCrNi. At low carbon content,the influence of microstructure on corrosion resistance of steels was not obvious. With higher carbon content, the single phase bainitic steel exhibited higher corrosion resistance than that of multiphase steel constituted by ferrite and cementite (pearlite). No marked distinction could be detected in corrosion resistance of steels with different carbon content water quenched after rolling, however,the steel with low carbon content air cooled after rolling exhibited higher corrosion resistance than that of steel with higher carbon content air cooled too. A compact inner rust layer was formed after 5 test cycles on the specimens with better corrosion resistance as observed by SEM. Though the general corrosion rate of 0.03wt%C water quenched steel was similar to that of 01wt%C water quenched steel, the trend of of pitting development was different. The growth of pitting was ceased after 5 test cycles in 0.03wt%C water quenched steel,but still increasing in the 0.1wt%C water quenched steel.
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Received: 01 January 1900
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| [1] |
ZHUO Xiao, AN Tong-bang, MA Cheng-yong. Strengthening and toughening mechanisms of deposited metals for 420 MPa weathering bridge steel[J]. Iron and Steel, 2020, 55(4): 88-94. |
| [2] |
GAN Gui-ping,YE Jiang,FAN Lei. Effect of tempering treatment on microstructure and low temperature toughness of a low carbon bainite steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(3): 258-264. |
| [3] |
YANG Yu-dan,ZHAO Hong-shan,LIU Teng-shi,DONG Han. Microstructure and properties of new high-carbon martensitic stainless steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(2): 135-142. |
| [4] |
HE Ya-yuan，LI Li-wei，LUO Hai-he，ZHU Cong-mao. Ductile-brittle transition temperature of high-strength steel by Boltzmann function fitting method[J]. PHYSICS EXAMINATION AND TESTING, 2020, 38(1): 7-. |
| [5] |
ZHU Chun-ming,LIU Gang-zhi,DONG She-xia,LI Xiao-bo,DONG Bao-jun,LIU Wei. Effect of temperature on corrosion of 3Cr steel in CO2-O2 environment[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(6): 573-581. |
| [6] |
SHEN Wen- xing,,CHEN Hai- tao,LANG Yu- ping,PU En- xiang,,ZHOU Xiao- ling. Effect of solution temperature on pitting corrosion resistance of 00Cr20Ni25Mo6Cu3 stainless steels[J]. , 2018, 30(9): 741-746. |
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2008, Vol. 43 
