Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser melting
Nearly fully dense, glassy Zr52.5Cu17.9Ni14.6Al10Ti5 bulk specimens were fabricated by selective laser melting (SLM) and their behaviour during compressive loading, during wear testing and in a corrosive medium was investigated. Their performance was compared with as-cast material of the same compos...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-04-01
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| Series: | Materials & Design |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127520300654 |
| _version_ | 1811206890164584448 |
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| author | L. Deng A. Gebert L. Zhang H.Y. Chen D.D. Gu U. Kühn M. Zimmermann K. Kosiba S. Pauly |
| author_facet | L. Deng A. Gebert L. Zhang H.Y. Chen D.D. Gu U. Kühn M. Zimmermann K. Kosiba S. Pauly |
| author_sort | L. Deng |
| collection | DOAJ |
| description | Nearly fully dense, glassy Zr52.5Cu17.9Ni14.6Al10Ti5 bulk specimens were fabricated by selective laser melting (SLM) and their behaviour during compressive loading, during wear testing and in a corrosive medium was investigated. Their performance was compared with as-cast material of the same composition. The additively manufactured samples exhibit a yield strength around 1700 MPa combined with a plastic strain of about 0.5% after yielding despite the residual porosity of 1.3%, which is distributed uniformly in the samples. The propagation of shear bands in the bulk metallic glass prepared by SLM was studied. The specific wear rate and the worn surfaces demonstrated that similar wear mechanisms are active in the SLM and the as-cast samples. Hence, manufacturing the glass in layers does not adversely affect the wear properties. The same holds for the corrosion tests, which were carried out in 0.01 M Na2SO4 and 0.1 M NaCl electrolyte. The anodic polarization curves of SLM samples and as-cast samples revealed a similar corrosion behaviour. However, the SLM samples have a slightly reduced susceptibility to pitting corrosion and exhibit an improved surface healing ability, which might be attributed to an improved homogeneity of the additively manufactured glass. Keywords: Selective laser melting, Zr-based alloy, Microhardness, Compression tests, Wear resistance, Corrosion resistance |
| first_indexed | 2024-04-12T03:55:41Z |
| format | Article |
| id | doaj.art-02d124c88cfd4e008ace622eb4c638ec |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-12T03:55:41Z |
| publishDate | 2020-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-02d124c88cfd4e008ace622eb4c638ec2022-12-22T03:48:50ZengElsevierMaterials & Design0264-12752020-04-01189Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser meltingL. Deng0A. Gebert1L. Zhang2H.Y. Chen3D.D. Gu4U. Kühn5M. Zimmermann6K. Kosiba7S. Pauly8Institute for Complex Materials, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, Germany; Corresponding author.Institute for Complex Materials, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, GermanyShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, 72 Wenhua Road, Shenyang 110016, PR ChinaInstitute for Complex Materials, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, Germany; College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Yudao Street 29, Nanjing 210016, Jiangsu Province, People's Republic of ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Yudao Street 29, Nanjing 210016, Jiangsu Province, People's Republic of ChinaInstitute for Complex Materials, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, GermanyInstitute of Materials Science, Faculty of Mechanical Engineering, TU Dresden, D-01062 Dresden, GermanyInstitute for Complex Materials, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, GermanyInstitute for Complex Materials, IFW Dresden, Helmholtzstraße 20, D-01069 Dresden, Germany; University of Applied Sciences Aschaffenburg, Würzburger Straße 45, D-63743 Aschaffenburg, GermanyNearly fully dense, glassy Zr52.5Cu17.9Ni14.6Al10Ti5 bulk specimens were fabricated by selective laser melting (SLM) and their behaviour during compressive loading, during wear testing and in a corrosive medium was investigated. Their performance was compared with as-cast material of the same composition. The additively manufactured samples exhibit a yield strength around 1700 MPa combined with a plastic strain of about 0.5% after yielding despite the residual porosity of 1.3%, which is distributed uniformly in the samples. The propagation of shear bands in the bulk metallic glass prepared by SLM was studied. The specific wear rate and the worn surfaces demonstrated that similar wear mechanisms are active in the SLM and the as-cast samples. Hence, manufacturing the glass in layers does not adversely affect the wear properties. The same holds for the corrosion tests, which were carried out in 0.01 M Na2SO4 and 0.1 M NaCl electrolyte. The anodic polarization curves of SLM samples and as-cast samples revealed a similar corrosion behaviour. However, the SLM samples have a slightly reduced susceptibility to pitting corrosion and exhibit an improved surface healing ability, which might be attributed to an improved homogeneity of the additively manufactured glass. Keywords: Selective laser melting, Zr-based alloy, Microhardness, Compression tests, Wear resistance, Corrosion resistancehttp://www.sciencedirect.com/science/article/pii/S0264127520300654 |
| spellingShingle | L. Deng A. Gebert L. Zhang H.Y. Chen D.D. Gu U. Kühn M. Zimmermann K. Kosiba S. Pauly Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser melting Materials & Design |
| title | Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser melting |
| title_full | Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser melting |
| title_fullStr | Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser melting |
| title_full_unstemmed | Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser melting |
| title_short | Mechanical performance and corrosion behaviour of Zr-based bulk metallic glass produced by selective laser melting |
| title_sort | mechanical performance and corrosion behaviour of zr based bulk metallic glass produced by selective laser melting |
| url | http://www.sciencedirect.com/science/article/pii/S0264127520300654 |
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