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Mechanical, tribological and anti-corrosive properties of polyaniline/graphene coated Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys
Alternative TitleMechanical, tribological and anti-corrosive properties of polyaniline/graphene coated Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys
Maurya Rita1; Siddiqui Abdul Rahim1; Katiyar Prvan Kumar1; Balani Kantesh1
2019
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume35Issue:8Pages:1767-1778
AbstractThe mechanical, tribological and corrosion protection offered to Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys by the epoxy coating containing polyaniline/graphene (PANI/Gr) pigments is undertaken in the current work. PANI/Gr containing coatings were observed to be strongly adherent with a higher scratch hardness (H-s) and plowing hardness (H-p), i.e. H-s of 0.43 GPa, and H-p of 0.61 GPa, respectively when compared to that of neat epoxy coating (H-s of 0.17 GPa, and H-p of 0.40 GPa, respectively). Due to their higher H-s and H-p values, PANI/Gr based coatings displayed an enhanced wear resistance (Wear volume, W-v =4.53 x 10(-3) m(3)) than that of neat epoxy coating (W-v = 5.15 x 10(-3) m(3)). The corrosion protection efficiency in corrosive environment of 3.5 wt% NaCl solution was obtained to be >99% for PANI/Gr containing coatings when compared to that of neat epoxy coating. The charge-transfer resistance (R-ct) of the PANI/Gr containing coatings were estimated to be >10(6) Omega cm(2), which indicates their highly protective nature when compared to that of neat epoxy coating (R-ct similar to 10(5) Omega cm(2)). Hence, PANI/Gr containing coatings can be potentially used for wear resistance and corrosion protection applications in marine environments. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
Other AbstractThe mechanical, tribological and corrosion protection offered to Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys by the epoxy coating containing polyaniline/graphene (PANI/Gr) pigments is undertaken in the current work. PANI/Gr containing coatings were observed to be strongly adherent with a higher scratch hardness (H_s) and plowing hardness (H_p), i.e. H_s of 0.43 GPa, and H_p of 0.61 GPa, respectively when compared to that of neat epoxy coating (H_s of 0.17 GPa, and H_p of 0.40 GPa, respectively). Due to their higher H_s and H_p values, PANI/Gr based coatings displayed an enhanced wear resistance (Wear volume, W_v = 4.53×10~(-3)m~3) than that of neat epoxy coating (W_v = 5.15×10~(-3)m~3). The corrosion protection efficiency in corrosive environment of 3.5 wt% NaCl solution was obtained to be >99% for PANI/Gr containing coatings when compared to that of neat epoxy coating. The charge-transfer resistance (Rct) of the PANI/Gr containing coatings were estimated to be >106 ? cm~2, which indicates their highly protective nature when compared to that of neat epoxy coating (Rct ~105 ? cm~2). Hence, PANI/Gr containing coatings can be potentially used for wear resistance and corrosion protection applications in marine environments.
KeywordMG-LI-AL CORROSION-RESISTANT PROPERTIES MAGNESIUM ALLOY PROTECTION PERFORMANCE COATING MATERIAL RECENT PROGRESS BEHAVIOR COMPOSITE GRAPHENE STEEL Mg-Li alloys Scratch hardness Plowing hardness Wear resistance Corrosion protection efficiency Charge transfer resistance
Indexed ByCSCD
Language英语
Funding Project[Space Technology Cell (IIT Kanpur, and Indian Space Research Organisation)] ; [Swarnajayanti Fellowship from Department of Science and Technology]
CSCD IDCSCD:6568347
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/147104
Collection中国科学院金属研究所
Affiliation1.Indian Institute Technol Kanpur, Mat Sci & Engn, Kanpur 208016, Uttar Pradesh, India
2.中国科学院金属研究所
3.Jiangsu Univ Technol, China Canada Institute Adv Surface & Interface Sci & E, Changzhou 213001, Peoples R China
Recommended Citation
GB/T 7714
Maurya Rita,Siddiqui Abdul Rahim,Katiyar Prvan Kumar,et al. Mechanical, tribological and anti-corrosive properties of polyaniline/graphene coated Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(8):1767-1778.
APA Maurya Rita,Siddiqui Abdul Rahim,Katiyar Prvan Kumar,&Balani Kantesh.(2019).Mechanical, tribological and anti-corrosive properties of polyaniline/graphene coated Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(8),1767-1778.
MLA Maurya Rita,et al."Mechanical, tribological and anti-corrosive properties of polyaniline/graphene coated Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.8(2019):1767-1778.
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