In-vitro bio-corrosion behavior of friction stir additively manufactured AZ31B magnesium alloy-hydroxyapatite composites

Ho, Yee‐Hsien; Joshi, Sameehan S.; Wu, Tso-Chang; Hung, C. K.; Ho, New-Jing; Dahotre, Narendra B.

doi:10.1016/j.msec.2020.110632

Cited by 74 publications

(22 citation statements)

References 53 publications

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“…It involves challenges such as brittle nature of the ceramics, difficulties in forming/machining, and requirement of very high temperatures during materials processing. In light of this, metal implants can be surface treated with bioceramic coatings such as hydroxyapatite [30,36,37] or bioglass [38,39] to improve the biocompatibility.…”

Section: Addition Of Bioceramics Into the Surfacementioning

confidence: 99%

“…Processed samples underwent filiform corrosion, whereas, the untreated material experienced heavy pitting along with filiform corrosion Mineralization studies revealed deposition of mineral apatite on composite samples while the untreated sample underwent dissolution and formation of hydroxide Cell adhesion and growth for the processed samples was superior to the untreated material. Among the processed samples, biocompatibility increased with an increase in the hydroxyapatite content [36,37] WE43 Rotation speed 800 and 1400 rpm while the linear speed of 102 mm/min was used.…”

Section: Friction Stir Processing and Surface Modificationmentioning

confidence: 99%

“…A systematic investigation of AZ31B Mg -hydroxyapatite composites fabricated using sheet based friction stir additive manufacturing for biomedical application was carried out [36,37]. Hydroxyapatite powders were packed in between AZ31B Mg sheets and its weight fraction was systematically varied as 5, 10, and 20 wt%.…”

Section: Sheet Based Friction Stir Additive Manufacturingmentioning

confidence: 99%

“…This technique is similar to friction surfacing in which a consumable feed rod is used instead of hollow tool which gets deposited as a layer [111,112]. There is a possibility of [37] composite fabrication through usage of hollow rods filled with ceramic powder as a feed-stock [113]. Although both additive friction stir deposition [104-106, 114, 115] and friction surfacing [116] have been explored in the case of Mg alloys for structural properties, the reports related to bio response of these processed materials are sparsely available in the open literature.…”

Section: Additive Friction Stir Depositionmentioning

confidence: 99%

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Tailored Surfaces on Biomedical Magnesium Alloys via Novel Beam and Friction Based Manufacturing Processes: A Review

Joshi

Dahotre

2022

Biomedical Materials & Devices

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Magnesium based alloys are attractive materials for biomedical applications as a result of their similar properties to the human bone and vital nature of the Mg ions during various functions of the human body. However, these materials suffer from poor corrosion resistance in chloride containing physiological environments. As a result, surface modification of biomedical alloys is needed to not only enhance the corrosion resistance but also biointegration characteristics. The current review article mainly focuses on beam and friction stir based techniques for surface processing of biomedical Mg alloys and composites. Each technique is further divided into sub-methods. Under the beam based processing, surface melting and bioceramic coating synthesis are discussed in detail. In the case of friction based methods, friction stir processing for grain refinement and techniques of surface modification to produce surface bioceramic composites are discussed. Furthermore, latest developments in the area of beam as well as friction stir additive manufacturing of biomedical Mg alloys and composites are elucidated. Lastly, possible directions for future progress and scaling up the lab level developments to actual applications in these materials processing areas for biomedical Mg alloys are provided.

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Section: Addition Of Bioceramics Into the Surfacementioning

confidence: 99%

Section: Friction Stir Processing and Surface Modificationmentioning

confidence: 99%

Section: Sheet Based Friction Stir Additive Manufacturingmentioning

confidence: 99%

Section: Additive Friction Stir Depositionmentioning

confidence: 99%

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Tailored Surfaces on Biomedical Magnesium Alloys via Novel Beam and Friction Based Manufacturing Processes: A Review

Joshi

Dahotre

2022

Biomedical Materials & Devices

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“…This is because the MgO particles are finer and more uniform in the sample produced at 1200 rpm-60 mm/min, and Lin et al [7] proposed that the MgO particles are in a positive potential position during the etching. Research by Ho et al [27] shows that grain refinement can cause an increase in corrosion resistance. When the particles are uniformly dispersed, the potential is high and the distribution is uniform and has a small grain size, so uniform corrosion will occur, thereby improving corrosion resistance.…”

Section: Electrochemical Testingmentioning

confidence: 99%

Fabrication and characterization of friction stir–processed Mg-Zn-Ca biomaterials strengthened with MgO particles

Liu

Cai

Chen

et al. 2021

Int J Adv Manuf Technol

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Magnesium alloy composites play an important role in biomaterials field.In this study, a novel Mg-Zn-Ca matrix composite was reinforced by adding 1.0 wt.% MgO nanoparticles via the high shear casting process. Hereafter, friction stir processing 2 (FSP) was used to achieve a good dispersion of MgO particles and improve the mechanical properties of the composites. After the preparation of the novel composite materials, varied characterization and performance test methods have been selected for comparison. The results illustrate that through FSP, the corresponding microstructure and properties of as-cast MgO/Mg-Zn-Ca composites were significantly modified, and the best combination of the key parameters is 1200 rpm and 60 mm/min for rotational velocity and traveling speed, respectively. After the optimized FSP treatment, the grains size in FSP-processed composites were refined by 42%, to reach 1.04 μm. Due to the grain refinement and the redistribution of MgO particles, the hardness of the FSPprocessed MgO/Mg-Zn-Ca composites were increased by 40%, to reach 101.2 HV.Further, it displayed excellent corrosion resistance as well as strength. Compared to the strengthening through grain refinement, the particle strengthening is more dominant based on the study. And meanwhile, the modified grains and added MgO particles are beneficial to the properties of the nugget zones.

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An osteogenic magnesium alloy with improved corrosion resistance, antibacterial, and mechanical properties for orthopedic applications

Aboutalebianaraki

Zeblisky

Sarker

et al. 2022

J Biomedical Materials Res

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The aim of this study was to develop a novel biodegradable magnesium (Mg) alloy for bone implant applications. We used scandium (Sc; 2 wt %) and strontium (Sr; 2 wt %) as alloying elements due to their high biocompatibility, antibacterial efficacy, osteogenesis, and protective effects against corrosion. In the present work, we also examined the effect of a heat treatment process on the properties of the Mg‐Sc‐Sr alloy. Alloys were manufactured using a metal casting process followed by heat treatment. The microstructure, corrosion, mechanical properties, antibacterial activity, and osteogenic activity of the alloy were assessed in vitro. The results showed that the incorporation of Sc and Sr elements controlled the corrosion, reduced the hydrogen generation, and enhanced mechanical properties. Furthermore, alloying with Sc and Sr demonstrated a significantly enhanced antibacterial activity and decreased biofilm formation compared to control Mg. Also, culturing Mg‐Sc‐Sr alloy with human bone marrow‐derived mesenchymal stromal cells showed a high degree of biocompatibility (>90% live cells) and a significant increase in osteoblastic differentiation in vitro shown by Alizarin red staining and alkaline phosphatase activity. Based on these results, the Mg‐Sc‐Sr alloy heat‐treated at 400°C displayed optimal mechanical properties, corrosion rate, antibacterial efficacy, and osteoinductivity. These characteristics make the Mg‐Sc‐Sr alloy a promising candidate for biodegradable orthopedic implants in the fixation of bone fractures such as bone plate‐screws or intramedullary nails.

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In-vitro bio-corrosion behavior of friction stir additively manufactured AZ31B magnesium alloy-hydroxyapatite composites

Cited by 74 publications

References 53 publications

Tailored Surfaces on Biomedical Magnesium Alloys via Novel Beam and Friction Based Manufacturing Processes: A Review

Tailored Surfaces on Biomedical Magnesium Alloys via Novel Beam and Friction Based Manufacturing Processes: A Review

Fabrication and characterization of friction stir–processed Mg-Zn-Ca biomaterials strengthened with MgO particles

An osteogenic magnesium alloy with improved corrosion resistance, antibacterial, and mechanical properties for orthopedic applications

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