carbon-fiber reinforced polymer composites;
electrodeposition;
electron microscopy;
focused ion beam;
galvanic corrosion;
GALVANIC CORROSION;
EPOXY;
COMPOSITE;
ALUMINUM;
MICROSTRUCTURE;
D O I:
10.5006/4604
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Carbon-fiber reinforced polymer (CFRPs) composites can drive galvanic corrosion of other metals with which they are in contact such as aluminum alloys (AAs) when exposed to aggressive environments. In these galvanic couples, CFRP behaves as a cathode, owing to the noble nature of carbon, whereas the coupled metal behaves as an anode that undergoes accelerated deterioration. To be able to control the corrosion, it is critical to understand the electrochemical activity of CFRP. In this work, a copper deposition technique was developed to quantify the extent of electrochemical activity and identify the exact location of electrochemically active sites on the CFRP. Optimization of the deposition parameters was performed by focused ion beam sectioning and viewing the Cu-deposited cross sections in a scanning electron microscope (SEM). Quantification of the electrochemically active area was done through large-area imaging by SEM and optical microscopy and image analysis. The top surfaces and cross sections of deposit/CFRP interfaces were investigated by viewing at high magnification to evaluate polymer coverage and surface defects.
机构:
Univ Hawaii Manoa, Dept Mech Engn, Hawaii Corros Lab, Honolulu, HI 96822 USAUniv Hawaii Manoa, Dept Mech Engn, Hawaii Corros Lab, Honolulu, HI 96822 USA
Srinivasan, Raghu
Hihara, L. H.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Hawaii Manoa, Dept Mech Engn, Hawaii Corros Lab, Honolulu, HI 96822 USAUniv Hawaii Manoa, Dept Mech Engn, Hawaii Corros Lab, Honolulu, HI 96822 USA
机构:
Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China
Army Acad Armored Forces, Natl Engn Res Ctr Mech Prod Remfg, Beijing 100072, Peoples R ChinaShandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China
Song, Yunpeng
Wang, Sijie
论文数: 0引用数: 0
h-index: 0
机构:
Army Acad Armored Forces, Natl Engn Res Ctr Mech Prod Remfg, Beijing 100072, Peoples R China
21 Dujiakan, Beijing, Peoples R ChinaShandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China
Wang, Sijie
Pan, Yaokun
论文数: 0引用数: 0
h-index: 0
机构:
Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China
266 Xincun West Rd, Zibo, Shandong, Peoples R ChinaShandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China
Pan, Yaokun
Li, Zhe
论文数: 0引用数: 0
h-index: 0
机构:
Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R ChinaShandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China
Li, Zhe
Yu, Lang
论文数: 0引用数: 0
h-index: 0
机构:
Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R ChinaShandong Univ Technol, Sch Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China