The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag content
Biomedical magnesium alloys have become an ideal material for degradable implants because of their similar density and elastic modulus with human bone. In this study, Mg-3Zn-0.2Ca-xAg (x = 0%, 0.1%, 0.3%, 0.5%, 0.7%, wt.%) alloys were fabricated to enhance the comprehensive properties of the Mg-3Zn-...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-09-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420315878 |
| _version_ | 1819227762476449792 |
|---|---|
| author | Leiting Yu Zihan Zhao Chaokun Tang Wei Li Chen You Minfang Chen |
| author_facet | Leiting Yu Zihan Zhao Chaokun Tang Wei Li Chen You Minfang Chen |
| author_sort | Leiting Yu |
| collection | DOAJ |
| description | Biomedical magnesium alloys have become an ideal material for degradable implants because of their similar density and elastic modulus with human bone. In this study, Mg-3Zn-0.2Ca-xAg (x = 0%, 0.1%, 0.3%, 0.5%, 0.7%, wt.%) alloys were fabricated to enhance the comprehensive properties of the Mg-3Zn-0.2Ca (wt.%) alloys. The microstructure shows that the alloy possesses relatively smaller grain size of 2.08 μm when the addition of Ag is 0.3 wt.%. The Mg-3Zn-0.2Ca-0.3Ag also owns the best mechanical properties whose elongation, yield strength and tensile strength are 4.57%, 5.7%, and 2.4%, respectively, higher than that of Mg-3Zn-0.2Ca. The electrochemical experiments shows that Mg-3Zn-0.2Ca-0.3Ag has lower corrosion current density (30.5 μA/cm2), which indicates that its corrosion resistance has been improved. After immersed in simulated body fluids at 37 ℃ for 15 days, the hydrogen release rate and degradation rate of the Mg-3Zn-0.2Ca-0.3Ag is significantly lower than that of Mg-3Zn-0.2Ca. In addition, the cytotoxicity test with L 929 cells shows that Mg-3Zn-0.2Ca-0.3Ag alloy has good biocompatibility. |
| first_indexed | 2024-12-23T10:46:32Z |
| format | Article |
| id | doaj.art-c3c99586c0df43529b95b9e0b747248d |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-23T10:46:32Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c3c99586c0df43529b95b9e0b747248d2022-12-21T17:50:01ZengElsevierJournal of Materials Research and Technology2238-78542020-09-01951086310875The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag contentLeiting Yu0Zihan Zhao1Chaokun Tang2Wei Li3Chen You4Minfang Chen5School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, ChinaSchool of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China; Tianjin Walkman Biomaterial Co., Ltd., Tianjin 300384, ChinaSchool of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, ChinaSchool of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China; School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials & Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, ChinaSchool of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China; School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials & Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China; Corresponding authors.School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China; School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials & Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China; Corresponding authors.Biomedical magnesium alloys have become an ideal material for degradable implants because of their similar density and elastic modulus with human bone. In this study, Mg-3Zn-0.2Ca-xAg (x = 0%, 0.1%, 0.3%, 0.5%, 0.7%, wt.%) alloys were fabricated to enhance the comprehensive properties of the Mg-3Zn-0.2Ca (wt.%) alloys. The microstructure shows that the alloy possesses relatively smaller grain size of 2.08 μm when the addition of Ag is 0.3 wt.%. The Mg-3Zn-0.2Ca-0.3Ag also owns the best mechanical properties whose elongation, yield strength and tensile strength are 4.57%, 5.7%, and 2.4%, respectively, higher than that of Mg-3Zn-0.2Ca. The electrochemical experiments shows that Mg-3Zn-0.2Ca-0.3Ag has lower corrosion current density (30.5 μA/cm2), which indicates that its corrosion resistance has been improved. After immersed in simulated body fluids at 37 ℃ for 15 days, the hydrogen release rate and degradation rate of the Mg-3Zn-0.2Ca-0.3Ag is significantly lower than that of Mg-3Zn-0.2Ca. In addition, the cytotoxicity test with L 929 cells shows that Mg-3Zn-0.2Ca-0.3Ag alloy has good biocompatibility.http://www.sciencedirect.com/science/article/pii/S2238785420315878AgMicrostructureMechanical propertiesIn vitro corrosion |
| spellingShingle | Leiting Yu Zihan Zhao Chaokun Tang Wei Li Chen You Minfang Chen The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag content Journal of Materials Research and Technology Ag Microstructure Mechanical properties In vitro corrosion |
| title | The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag content |
| title_full | The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag content |
| title_fullStr | The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag content |
| title_full_unstemmed | The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag content |
| title_short | The mechanical and corrosion resistance of Mg-Zn-Ca-Ag alloys: the influence of Ag content |
| title_sort | mechanical and corrosion resistance of mg zn ca ag alloys the influence of ag content |
| topic | Ag Microstructure Mechanical properties In vitro corrosion |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420315878 |
| work_keys_str_mv | AT leitingyu themechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT zihanzhao themechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT chaokuntang themechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT weili themechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT chenyou themechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT minfangchen themechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT leitingyu mechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT zihanzhao mechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT chaokuntang mechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT weili mechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT chenyou mechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent AT minfangchen mechanicalandcorrosionresistanceofmgzncaagalloystheinfluenceofagcontent |