低成本Al-Ti-Cr高强耐海水腐蚀钢耐蚀性能研究

doi:10.11896/cldb.20090195

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Abstract Anew type of low-cost, high-strength, high-strength steel was prepared by adding elements such as Cr, Ti, and Al to plain carbon steel. The seawater corrosion resistance of low-cost Al-Ti-Cr high-strength corrosion-resistant steel was studied by potential polarization, AC impe-dance, peripheral immersion corrosion test and salt spray accelerated corrosion test.The research results show that: Cr in steel can promote the transformation of rust layer to dense α-FeOOH. While Al and Ti provide anodic protection, Al produces dense Al₂O₃ dispersed on the surface of the rust layer to retard the corrosion of the corrosive medium to the substrate. Ti can be concentrated in the rust layer in dots or flakes, which can protect the intergranular corrosion and greatly improve the corrosion resistance of the corrosion-resistant steel.

Key words： corrosion resistant steel potentiodynamic polarization electrochemical impedance spectroscopy salt spray test

Published: 03 August 2021

CLC number:

TB31

Fund:Guangxi Science and Technology Major Project(2018AA23004).

About author:: Xin Yin received his B.E.degree in june 2018 from Hunan Institute of Technology. In September 2018, he entered the School of Materials Science and Engineering of Guilin University of Technology for a master's degree, mainly engaged in research on corrosion resistance and mechanical properties of steel materials.
Zhengbing Meng doctor, senior engineer, master's tutor, non-practicing member of Chinese certified public accountant, member of the 5th Continuous Casting Technology Academic Committee of the Continuous Casting Branch of China Metal Society. Since joining Guilin University of Technology in 2015, he has been mainly engaged in research on new steel metallurgy technology, steel material development, and comprehensive utilization of metallurgical resources. Published more than 10 papers in important domestic and foreign journals and applied for more than 10 patents.

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	HU Hao

Cite this article:

YIN Xin,MENG Zhengbing,HU Hao. Research on Corrosion Resistance of Low Cost Al-Ti-Cr High Strength Seawater Corrosion Resistant Steel[J]. Materials Reports, 2021, 35(14): 14084-14088.

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http://www.mater-rep.com/EN/10.11896/cldb.20090195 OR http://www.mater-rep.com/EN/Y2021/V35/I14/14084

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