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Comparison of corrosion behavior of Ti3SiC2and Ti3AlC2in NaCl solutions with Ti
Zhu, M.1; Wang, R.2; Chen, C.2; Zhang, H.B.2; Zhang, G.J.3
2017
Source PublicationCeramics International
ISSN02728842
Volume43Issue:7Pages:5708-5714
AbstractCorrosion behavior of self-sintered, ternary-layered titanium silicon carbide (Ti3SiC2) and titanium aluminum carbide (Ti3AlC2) fabricated by an in-situ solid-liquid reaction/hot pressing process was investigated by potentiodynamic polarization, potentiostatic polarization and electrochemical impedance spectroscopy in a 3.5% NaCl solution. Commercially pure titanium (Ti) was selected for comparison through XRD, XPS, SEM and EDS examinations for elucidating both the passivation behavior and corrosion mechanism of the alloys. Both Ti3SiC2and Ti3AlC2exhibited significantly superior passivation characteristics compared to Ti; Ti3SiC2also showed better corrosion resistance. The silicon/aluminum site is prone to attack, and the difference in the diffusion rate between the A-site atoms and titanium decreases the passivation ability of the MAX phase. CP titanium exhibited a lower passivation current density and did not undergo breakdown in the test potential region while two MAX phases are destroyed. Nevertheless, the corrosion resistances of Ti3SiC2and Ti3AlC2are comparable to that of CP titanium. © 2017 Elsevier Ltd and Techna Group S.r.l.
DOI10.1016/j.ceramint.2017.01.111
EI Accession Number20170503310845
EI KeywordsTitanium alloys
EI Classification Number539.1 Metals Corrosion - 539.2.1 Protection Methods - 541.2 Aluminum Alloys - 542.3 Titanium and Alloys - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 801 Chemistry - 804.2 Inorganic Compounds
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25561
Collection中国科学院上海硅酸盐研究所
Affiliation1.College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an; 710054, China;
2.Innovation Research Team for Advanced Ceramics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang; 621900, China;
3.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Research Institute of Functional Materials, Donghua University, Shanghai; 201620, China
Recommended Citation
GB/T 7714
Zhu, M.,Wang, R.,Chen, C.,et al. Comparison of corrosion behavior of Ti3SiC2and Ti3AlC2in NaCl solutions with Ti[J]. Ceramics International,2017,43(7):5708-5714.
APA Zhu, M.,Wang, R.,Chen, C.,Zhang, H.B.,&Zhang, G.J..(2017).Comparison of corrosion behavior of Ti3SiC2and Ti3AlC2in NaCl solutions with Ti.Ceramics International,43(7),5708-5714.
MLA Zhu, M.,et al."Comparison of corrosion behavior of Ti3SiC2and Ti3AlC2in NaCl solutions with Ti".Ceramics International 43.7(2017):5708-5714.
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