| Autor: |
Wenhui Wang, Xiyue Zhang, Anke Zhang, Han Yu, Xinbao Kang, Cheng Wang, Yang Song, Jiahua Ni, Mikhail L. Zheludkevich, Xiaonong Zhang |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Bioactive Materials, Vol 41, Iss , Pp 371-384 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2452-199X |
| DOI: |
10.1016/j.bioactmat.2024.07.020 |
| Popis: |
Improving the comprehensive performance of low alloyed Mg is a significant challenge for biomedical applications. This paper developed a high-performance Mg–Zn alloy with uniform ultrafine grains and nano-precipitates through a straightforward, high-temperature reciprocating equal channel angle extrusion (ECAP) process and researched the microstructure, mechanical property, degradation behaviour, and biocompatibility of the developed alloy. Results showed that the lean Mg–2Zn alloy successfully refined grain to about 1 μm and produced plenty of nano-particles with uniform distribution, providing high comprehensive mechanical properties (YS: 235 MPa, UTS: 267 MPa, EL: 15.6 %). Additionally, Zn-riched nano-particles in the matrix could decrease the Zn aggregation at the corrosion layer-matrix interface and form a dense oxide film, achieving a low degradation rate (0.13 mm/year in vivo). Finally, this work realizes the low alloy content, low cost, and good properties of one biodegradable Mg alloy, which will benefit the promotion of future clinical applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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