This study proposes a new method, electrochemical critical localized corrosion potential (E-CLCP), in order to evaluate localized corrosion resistance of biomedical additive manufacturing (AM) titanium (Ti) alloys. The procedures for determining E-CLCP are completely different from that of the electrochemical critically localized corrosion temperature (E-CLCT) method (ISO 22910:2020). However, its application should be limited to pH and temperature of the human body because of the temperature scan. E-CLCP displays the localized corrosion resistance of AM Ti alloys based on the human body's repassivation kinetics, whereas E-CLCT displays the localized corrosion resistance of the alloys based on passive film breakdown in much harsher corrosive environments.
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http://dx.doi.org/10.3390/ma14237481 | DOI Listing |
Acta Biomater
December 2024
Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, PR China. Electronic address:
Magnesium (Mg)-based alloys have been recognized as desirable biodegradable materials for orthopedic implants. However, their clinical application has been limited by rapid degradation rates, insufficient antibacterial and osteogenic-promotion properties. Herein, a MgF priming layer was first constructed on AZ31 surface.
View Article and Find Full Text PDFLangmuir
December 2024
Department of Architectural Engineering, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si 15588, Gyeonggi-do, Republic of Korea.
Reliable corrosion inhibition systems are crucial for extending the lifespan of industrial metal structures. Quinolines, with their high adsorption capacity and protective efficiency, are promising next-generation inhibitors. However, the impact of substitutions on their coordination with iron surfaces requires deeper understanding.
View Article and Find Full Text PDFJ Med Case Rep
December 2024
Shiraz Organ Transplant Center,, Abu Ali Sina Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
Background: Corrosive substance ingestion is rare but can cause severe injury, especially to the upper gastrointestinal tract, and can be a potentially fatal event. Various surgical procedures have been advocated for gastroesophageal reconstruction, but especially those using the right colon, when the ileocecal valve is preserved for gastric reconstruction, are briefly exposed in literature and have not been studied in humans by controlled studies. Using the right colon is believed to be beneficial because of the anti-reflux mechanism of the ileocecal valve.
View Article and Find Full Text PDFMechanical properties and integrity of biodegradable Zn alloys during degradation holds significant importance. In this study, a Zn-Mg-Mn alloy with tensile strength of 414 MPa and an elongation of 26% was developed. The strength contributions of as-extruded Zn alloy from grain boundary strengthening, precipitation strengthening, and second phase strengthening.
View Article and Find Full Text PDFAdv Mater
December 2024
School of Engineering, Institute for Multiscale Thermofluids, The University of Edinburgh, Edinburgh, Scotland, EH9 3FD, UK.
Solar evaporation contributes to sustainable and environmentally friendly production of fresh water from seawater and wastewater. However, poor salt resistance and high degree of corrosion of traditional evaporators in brine make their implementation in real applications scarce. To overcome such deficiency, a polyanionic electrolyte functionalization strategy empowering excellent uniform desalination performance over extended periods of time is exploited.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!