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| 1 | Opportunities and challenges of biodegradable Zn-based alloys显示文摘Following the footsteps of biodegradable Mg-based and Fe-based alloys,biodegradable Zn-based alloy is a newcomer and rising star in the family of biodegradable metals and alloys.The combined superior mechanical properties,appropriate degradation rates,excellent biocompatibility of biodegradable Zn-based alloys have brought worldwide research interest on the design,development and clinical translation of Zn-based alloys.The present perspective has summarized opportunities and challenges in the development of biodegradable Zn-based alloys. | H.F.Li Z.Z.Shi L.N.Wang | 2020 | Journal of Materials Science & Technology2020，42，11： | 8 |
| 2 | Nanocrystalline Ti49.2Ni50.8 shape memory alloy as orthopaedic implant material with better performance显示文摘Ti Ni alloys, with their unique shape memory effects and super elastic properties, occupy an indispensable place in the family of metallic biomaterials. In the past years, surface treatment is the main technique to improve the bioinert nature of microcrystalline Ti Ni alloys and inhibit on the release of toxic nickel ions to obtain excellent osteogenesis and osseointegration function. In the present study, nanocrystalline Ti49.2Ni50.8 alloy has been fabricated via equal channel angular pressing(ECAP), and the in vitro and in vivo studies revealed that it had enhanced cell viability, adhesion, proliferation, ALP(Alkaline phosphatase)activity and mineralization, and increased periphery thickness of new bone, in comparison to the commercial coarse-grained counterpart. These findings indicate that the reduction of grain size is beneficial to increasing the biocompatibility of Ti49.2Ni50.8 shape memory alloy. | H.F.Li F.L.Nie Y.F.Zheng Y.Cheng S.C.Wei R.Z.Valiev | 2019 | Journal of Materials Science & Technology2019，35，10： | 4 |
| 3 | Predictive fatigue crack growth law of high-strength steels显示文摘The fatigue resistance of metallic materials is generally attributed to both strength and toughness.Unfortunately,these properties are mutually exclusive in most materials.Classical theories like Paris’law only provide some data correlation schemes rather than a predictive capability,which cannot satisfactorily guide the anti-fatigue design.In this study,for the first time,the predictive fatigue crack growth rate law is proposed by considering the effects of both strength and toughness.Accordingly,a quantitative criterion is established for judging the fatigue crack resistance of high-strength steels.The predictive law would provide a unique view to the quantitative anti-fatigue design of metallic materials. | H.F.Li P.Zhang B.Wang Z.F.Zhang | 2022 | Journal of Materials Science & Technology2022，，5： | 2 |
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