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Improved wear resistance of biodegradable Mg-1.5Zn-0.6Zr alloy by Sc addition
Li, Tao1,2,3; Wang, Xi-Tao1,4; Tang, Shou-Qiu1; Yang, Yuan-Sheng1,2; Wu, Jian-Hua1,3; Zhou, Ji-Xue1
Corresponding AuthorWu, Jian-Hua(jianhw@sdas.org) ; Zhou, Ji-Xue(zhoujx@sdas.org)
2020-06-11
Source PublicationRARE METALS
ISSN1001-0521
Pages7
AbstractMagnesium alloys exhibit significant potential for use in next-generation biodegradable materials. Implanted magnesium alloys are expected to exhibit good wear resistance. In this work, the effects of rare earth metal Sc on the wear resistance of biodegradable magnesium alloys were studied. The average grain sizes of Mg-1.5Zn-0.6Zr-xSc (ZK21-xSc,x = 0, 0.2, 0.5, 1.0; wt%) alloys decreased with Sc content increasing. Unlike other rare earth metals, the grain refinement mechanism of Sc belongs to the heterogeneous nucleation mechanism. The yield tensile strengths and Vickers hardness of the ZK21-xSc alloys markedly improved with the addition of Sc increasing. This could be due to the grain refinement and enhanced bond energy resulting from Sc addition. Moreover, the friction and wear tests showed that the friction coefficient of the alloys decreased and the weight loss reduced with Sc addition increasing. This implies that Sc addition could enhance the wear resistance of magnesium alloys. With the addition of Sc increasing, the peeling phenomenon weakened gradually and the worn surfaces of samples became smoother. The major wear mechanisms of the as-cast ZK21-xSc alloys were abrasion wear and delamination wear. Graphic abstract
KeywordMagnesium Wear resistance Scandium Hardness Biodegradable
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; Shandong Provincial Natural Science Foundation ; Specialized Fund for Shandong Postdoctoral Innovation Project ; Youth Science Funds of Shandong Academy of Sciences
DOI10.1007/s12598-020-01420-6
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51174025] ; National Key Research and Development Program of China[2016YFB0301105] ; National Key Research and Development Program of China[2017YFB0103904] ; Shandong Provincial Natural Science Foundation[ZR2017LEM002] ; Specialized Fund for Shandong Postdoctoral Innovation Project[201703093] ; Youth Science Funds of Shandong Academy of Sciences[2018QN0034]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000539813700001
PublisherNONFERROUS METALS SOC CHINA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139275
Collection中国科学院金属研究所
Corresponding AuthorWu, Jian-Hua; Zhou, Ji-Xue
Affiliation1.Qilu Univ Technol, Shandong Acad Sci, Adv Mat Inst, Shandong Prov Key Lab High Strength Lightweight M, Jinan 250014, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
4.Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Li, Tao,Wang, Xi-Tao,Tang, Shou-Qiu,et al. Improved wear resistance of biodegradable Mg-1.5Zn-0.6Zr alloy by Sc addition[J]. RARE METALS,2020:7.
APA Li, Tao,Wang, Xi-Tao,Tang, Shou-Qiu,Yang, Yuan-Sheng,Wu, Jian-Hua,&Zhou, Ji-Xue.(2020).Improved wear resistance of biodegradable Mg-1.5Zn-0.6Zr alloy by Sc addition.RARE METALS,7.
MLA Li, Tao,et al."Improved wear resistance of biodegradable Mg-1.5Zn-0.6Zr alloy by Sc addition".RARE METALS (2020):7.
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