Article
Chemistry, Multidisciplinary
M. Kalaiyarasan, N. Rajendran
Summary: Magnesium alloys are promising materials for orthopedic applications due to their excellent biocompatibility and good mechanical properties. However, the uncontrolled corrosion of magnesium hinders its potential usage. This study explores a solution to address this issue by depositing TiSO4 nanoparticles on the surface of AZ31 magnesium alloy using electrophoretic deposition. The coated alloy shows improved corrosion resistance and reduced degradation rate, as confirmed by various characterization techniques.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Sachiko Hiromoto, Kotaro Doi
Summary: The effect of polyethylene glycol (PEG) modification on the corrosion behavior under tensile deformation of hydroxyapatite-coated Mg-3mass% Al-1mass% Zn (HAp-AZ31) was investigated. PEG-modified HAp-AZ31 exhibited 1.4 times longer elongation to failure in slow strain rate tensile (SSRT) tests. The PEG modification had little effect on cracking of HAp coating in rapid straining electrode (RSE) tests, but reduced corrosion propagation from the cracks by half.
Article
Electrochemistry
Yulong Wu, Liang Wu, Wenhui Yao, Bin Jiang, Jiahao Wu, Yanning Chen, Xiao-bo Chen, Qin Zhan, Gen Zhang, Fusheng Pan
Summary: This study successfully synthesized MXenes/MgAl-LDHs composite coatings via an improved preparation process, which exhibited excellent anti-corrosion performance and self-healing ability on Mg alloy surfaces.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Tehseen Zehra, Supriya A. Patil, Nabeen K. Shrestha, Arash Fattah-alhosseini, Mosab Kaseem
Summary: The present work investigated the impact of different anions on the incorporation of WO3 nanoparticles into the MgO layer during the plasma electrolytic oxidation of AZ31 Mg alloy. The type of anion added into the electrolyte influenced the microstructural features, coating thickness, and corrosion resistance of the samples. The coating produced in the presence of silicate anions exhibited the best corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
Eva Raccosta Leone, Lucia Simona Ferraraccio, Giacomo Damonte, Paola Lova, Paolo Bertoncello, Orietta Monticelli
Summary: The main aim of this study was to test the biopolymer polycaprolactone (PCL) as an electrode modifier for the electrochemical detection of dopamine (DA). Results showed that star-shaped polymer structures have an influence on the electrochemical activity and selectivity.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Y. Zhang, J. Y. Dai, L. Zhao, L. P. Wu
Summary: In this study, a KMgF3 film coated AZ31 magnesium alloy was successfully prepared, which exhibited improved corrosion resistance and biocompatibility. Surface morphology observations and performance testing results showed that the KMgF3 film coated alloy had a 68% reduction in hydrogen evolution and an approximately 49 times higher corrosion current density compared to the uncoated alloy. Additionally, the KMgF3 film demonstrated better durability in simulated body fluid and enhanced the proliferation of bone marrow mesenchymal stem cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Mechanical
G. Venses, M. Sivapragash, T. Sasi Kumar, F. Michael Thomas Rex
Summary: This study analyzes the influence of electroplating parameters on the hardness and corrosion properties of AZ31 Mg alloy, and achieves optimal results by electroplating with Ni-B4C composite coating.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2022)
Article
Materials Science, Coatings & Films
Daniel Kajanek, Filip Pastorek, Branislav Hadzima, Sara Bagherifard, Michal Jambor, Pavol Belany, Peter Minarik
Summary: This paper investigates the influence of selected pre-treatments, including shot peening, polishing, and grinding, on the corrosion characteristics of AZ31 magnesium alloy before plasma electrolytic oxidation (PEO). The results show that shot peening, despite its negative impact on the electrochemical reactivity of the alloy, significantly enhances the corrosion stability of the subsequently formed PEO coating.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Andreea-Mariana Negrescu, Madalina-Georgiana Necula, Adi Gebaur, Florentina Golgovici, Cristina Nica, Filis Curti, Horia Iovu, Marieta Costache, Anisoara Cimpean
Summary: The study investigated the effects of electrospun poly(epsilon-caprolactone) fibers loaded with coumarin (CM) and/or zinc oxide nanoparticles (ZnO) on the inflammatory response and osteoclastogenic process in macrophages. Results showed that AZ31 alloy coated with PCL containing CM and/or ZnO could be a feasible strategy for biomedical applications, with improved corrosion behavior and modulation of immune response.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Zhihao Chen, Zihao Zhang, Yuanyong Ouyang, Yun Chen, Xiaoshuang Yin, Ying Liu, Hanjie Ying, Wenzhong Yang
Summary: In order to enhance the corrosion resistance and biocompatibility of AZ31 Mg alloy, researchers prepared a polycaprolactone/ collagen/cerium-hydroxyapatite (PCL/Col/Ce-HA) fiber coating using electrospinning technique. The PCL/Col/Ce-HA fiber coating with 5 wt% of Ce-HA showed the densest surface with uniform fiber size and provided a firm physical barrier against corrosive ions. Electrochemical tests showed that the corrosion rate of the PCL/Col/Ce-HA fiber coating was almost 30 times lower than the bare AZ31 Mg alloy. The lowest hemolysis rate and excellent cell biocompatibility of the PCL/Col/Ce-HA fiber coating also met the requirements for biomedical material application.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Syamil Zakaria, Mazli Mustapha, Azwan Iskandar Azmi, Azlan Ahmad, Mohd Danish, Saeed Rubaiee
Summary: This study implemented a novel internal cooling technique, known as submerged convective cooling (SCC), to alleviate the excessive temperature rise in dry cutting of AZ31 magnesium alloy. The experimental result demonstrated that SCC outperformed dry cutting in terms of adhesion wear mechanism, cutting force, and temperature, with significantly reduced BUE and BUL formation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Weiying Huang, Jianhua Chen, Ruizhi Zhang, Xuyue Yang, Liping Jiang, Zhenyu Xiao, Yaqun Liu
Summary: Uniaxial compression experiments were conducted on AZ31 magnesium alloy at different temperatures and strain rates to investigate deformation modes and dynamic recrystallization behavior. A unified constitutive equation was established for different initial textures, and activation energies for different samples were determined. The role of prismatic slips and kink bands in the recrystallization process was discussed for the first time, leading to improvements in strength and ductility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Applied
Hamouda M. Mousa, Mahmoud A. Mahmoud, Ahmed S. Yasin, Ibrahim M. A. Mohamed
Summary: AZ31 magnesium alloy coated with a blend of polycaprolactone and amino acid Schiff base showed high corrosion inhibition efficiency, making it a promising material for bone tissue engineering applications. The sample was characterized and evaluated for corrosion behavior using various techniques, and in vitro bioactivity was confirmed through osteoblast cell experiments.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Jianyue Zhang, Xuzhe Zhao, De'an Meng, Qingyou Han
Summary: A surface nanocrystalline fabricated by ultrasonic shot peening treatment showed improved bendability for AZ31 Mg alloy. The thickness of the nanocrystalline and its placement (internal or external) affected the bendability. Internal treatment for 5 minutes improved the bendability, while longer treatment had limited and negative effects. External treatment also improved the bendability by redistributing strain and stress during bending.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Chuanwei Fan, Wei Wang, Jingpei Zhu
Summary: HA-GO/MgF2 composite coating was prepared using acid solution pretreatment and electrophoretic deposition on AZ91D Mg alloy substrate, followed by thermal reduction to obtain HA-RGO/MgF2 double layered composite coating. The influence of RGO content on the surface morphology, crystalline structures, and corrosion resistance of the composite coating was investigated. The results showed that at a RGO content of 0.33 mg/mL, the resulting HA-RGO-0.33/MgF2 composite coating exhibited a uniform and dense surface morphology, with good bonding to the AZ91D Mg alloy substrate. Electrochemical and immersion tests demonstrated that the HA-RGO/MgF2 composite coating improved the corrosion resistance of the AZ91D Mg alloy substrate.
DIAMOND AND RELATED MATERIALS
(2023)
