Selective laser melting of an Mg/Metallic Glass hybrid for significantly improving chemical and mechanical performances

Yao，X. Y.1; Tang，J. C.1; Zhou，Y. H.1; Huang，Z. Z.1; Xu，J. B.2; Long，Y.2,3; Tan，L. L.4; Wiese，B.5; Ebel，T.5; Yan，M.1

2022-04-01

10.1016/j.apsusc.2021.152229

APPLIED SURFACE SCIENCE   影响因子和分区

0169-4332

1873-5584

Pure magnesium (Mg) is widely used as biomedical material, but its degradation rate is often too high and problematic to clinic applications. In this study, selective laser melting (SLM) was used to prepare an Fe-based metallic glass surface on a pure Mg substrate, forming a hybrid material to explore the advantage associated with such designed structure. It was found that the corrosion resistance was significantly improved with the hybrid material (from 0.89 ± 0.1 mm/a to 0.11 ± 0.03 mm/a in simulated body fluid), along with much increased hardness from 0.46 GPa to 14.3 GPa. The metallic glass surface was shown to retain its amorphous nature after the SLM processing. The molten pool formed by the applied laser beam resulted in a good mechanically interlocked bonding between the metallic glass layer and the Mg matrix. It was further revealed that the metallic glass surface had better wetting property than the Mg substrate, explaining why the MG-63 cells had good adhesion to it. The cell toxicity test was followed under the in vitro condition, indicating no toxicity in the metallic glass part. The results provide a feasible way to develop advanced Mg materials for biomedical applications via the capable SLM technology and via the suggested hybrid material.

Biocompatibility Corrosion Magnesium Metallic glass & Amorphous alloy Selective laser melting

SCI ; EI

英语

第一

Guangdong Basic and Applied Basic Research Foundation[2020B1515120013] ; Shenzhen Science and Technology Innovation Commission["JSGG20210420091802007","JCYJ20180504165824643"]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter

WOS:000762840400002

ELSEVIER

20220111416524

Amorphous alloys ; Biomedical engineering ; Chemical bonds ; Corrosion resistance ; Corrosion resistant alloys ; Degradation ; Glass ; Laser beams ; Medical applications ; Melting ; Metallic glass ; Metals ; Toxicity ; Wetting

Biomedical Engineering:461.1 ; Health Care:461.7 ; Immunology:461.9.1 ; Metallurgy and Metallography:531 ; Metals Corrosion:539.1 ; Laser Beam Interactions:744.8 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Glass:812.3

MATERIALS SCIENCE

2-s2.0-85121967206

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Han's Laser Smart Equipment Group Co.,Ltd.,Shenzhen,518000,China
3.Guangxi University,Nanning,530004,China
4.Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,China
5.Institute of Metallic Biomaterials,Helmholtz-Zentrum Geesthacht,Geesthacht,21502,Germany

Yao，X. Y.,Tang，J. C.,Zhou，Y. H.,et al. Selective laser melting of an Mg/Metallic Glass hybrid for significantly improving chemical and mechanical performances[J]. APPLIED SURFACE SCIENCE,2022,580.

Yao，X. Y..,Tang，J. C..,Zhou，Y. H..,Huang，Z. Z..,Xu，J. B..,...&Yan，M..(2022).Selective laser melting of an Mg/Metallic Glass hybrid for significantly improving chemical and mechanical performances.APPLIED SURFACE SCIENCE,580.

Yao，X. Y.,et al."Selective laser melting of an Mg/Metallic Glass hybrid for significantly improving chemical and mechanical performances".APPLIED SURFACE SCIENCE 580(2022).