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| FRACTURE MECHANISM OF MILD STEEL IN HYDROCHLORIC ACID CONTAINING Fe~(3+) |
| Cheng Yufeng;Du Yuanlong(Corrosion Science Laboratory;Institute of Corrosion and Protection of Metals;Chinese Academy of Sciences) |
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Abstract A new kind of electrochemical sensor was used for measuring the permeation rate of atomic hydrogen(H permeation current) through the sensor in 5% HCl solution containing Fe(3+) at different concentrations.The susceptibility and mechanism of brittle fracture of A3 mild steel were studied by slow strain rate tensiletechnique (SSRT), scanning electron microscope (SEM) and cathodic/anodic polarization measurements.The embrittlement susceptibility of the steel in the solution was expressed as the index of embrittlement(F%).The results showed that the fracture mechanism of the steel in 5% HCl aqueous solution containingFe(3+)would be changed from hydrogen induced cracking (HIC) to anodic dissolution in nature with theimcrease of the concentration of Fe(3+) in the solution.
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Received: 25 April 1995
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Cite this article:
Cheng Yufeng;Du Yuanlong(Corrosion Science Laboratory;Institute of Corrosion and Protection of Metals;Chinese Academy of Sciences). FRACTURE MECHANISM OF MILD STEEL IN HYDROCHLORIC ACID CONTAINING Fe~(3+). J Chin Soc Corr Pro, 1995, 15(2): 81-86.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1995/V15/I2/81
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| 1DuY．In:Proceedingsof12thInterationCorrosionCongress,Houston,U．S．A,1993,23832BastienP,VeronH,RoquesC．RevuedeMetallurgie,Memoires,1958,55:3103左景伊．应力腐蚀破裂,西安:西安交通大学出版社,1985．4RajaKS;RaoKPCorrosion,1992,48(8):6345NajjarD,etalIn:Proceedingsof12thInternationalCorrosionCongress,Houston,U．SA,1993;1613．6HardwickDA;et．al．MetallurgicalTransartions,1983;14A:25177HolroydNJH,HardieD．CorrosionScience,1981,21:129 |
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