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Investigation of slurry erosion-corrosion behavior of Ta(Si1-xAlx)(2) nanocrystalline coatings
Xu, J1; Xie, QW1; Peng, S1; Li ZY(李正阳)2; Jiang, SY3
Corresponding AuthorXu, Jiang(xujiang73@nuaa.edu.cn)
Source PublicationMATERIALS RESEARCH EXPRESS
2020-02-01
Volume7Issue:2Pages:19
ISSN2053-1591
AbstractTo enhance the erosion-corrosion resistance of titanium alloys, two Ta(Si1-xAlx)(2) coatings with different Al content were deposited on Ti-6Al-4V alloy by double cathode glow discharge method. The coatings consist of single hexagonal C40 structured TaSi2 phase, which forms an equiaxed grain structure with an average diameter of similar to 5 nm. Al addition was found to enhance the values of H/E and adhesive strength between the substrate and coating. The erosion-corrosion behavior of the coatings was studied in a liquid-solid acid slurry flow (specifically a medium of 5 wt% HCl solution that contained a 10 wt% concentration of silica-based sand) using electrochemical measurements, weight loss tests and SEM observation. The results indicated that the ternary Ta(Si0.875Al0.125)(2) coating provided better protection, compared to the binary TaSi2 coating, against the combined attack of mechanical erosion and electrochemical corrosion in a liquid-solid acid slurry flow. This is attributable to high self-healing ability of the surface passive film and a higher H/E ratio.
Keyworderosion-corrosion refractory metal silicides slurry flow EIS mechanical properties
DOI10.1088/2053-1591/ab6f39
Indexed BySCI ; EI
Language英语
WOS IDWOS:000535222500008
WOS KeywordELECTROCHEMICAL-BEHAVIOR ; STAINLESS-STEELS ; RESISTANCE ; TITANIUM ; WEAR ; VELOCITY ; ALLOY ; COMPOSITE ; OXIDATION ; TANTALUM
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding ProjectNational Natural Science Foundation of China[51635004] ; National Natural Science Foundation of China[51675267]
Funding OrganizationNational Natural Science Foundation of China
ClassificationQ3
Ranking4
ContributorXu, Jiang
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/82085
Collection先进制造工艺力学实验室
Affiliation1.Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Peoples R China;
2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
3.Southeast Univ, Dept Mech Engn, 2 Si Pai Lou, Nanjing 210096, Peoples R China
Recommended Citation
GB/T 7714
Xu, J,Xie, QW,Peng, S,et al. Investigation of slurry erosion-corrosion behavior of Ta(Si1-xAlx)(2) nanocrystalline coatings[J]. MATERIALS RESEARCH EXPRESS,2020,7(2):19.
APA Xu, J,Xie, QW,Peng, S,李正阳,&Jiang, SY.(2020).Investigation of slurry erosion-corrosion behavior of Ta(Si1-xAlx)(2) nanocrystalline coatings.MATERIALS RESEARCH EXPRESS,7(2),19.
MLA Xu, J,et al."Investigation of slurry erosion-corrosion behavior of Ta(Si1-xAlx)(2) nanocrystalline coatings".MATERIALS RESEARCH EXPRESS 7.2(2020):19.
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