{"title":"Antimicrobial property, corrosion resistance and tarnish resistance of cold-sprayed additive manufactured copper-nickel alloy","authors":"Thi Thuy Tien Tran, Kannoorpatti Krishnan","doi":"10.1007/s40964-023-00517-5","DOIUrl":null,"url":null,"abstract":"Abstract The management of infectious diseases has posed a significant challenge in recent years, drawing the attention of scientific communities. Copper is renowned for its robust antimicrobial properties; however, it is susceptible to tarnishing. In contrast, copper-nickel alloy demonstrates not only commendable mechanical strength and corrosion resistance but also exceptional antimicrobial efficacy. A suitable copper-nickel alloy was synthesised using cold spray additive manufacturing, blending copper and nickel powders. The resultant as-printed coupons underwent heat treatment at varying temperatures to ensure alloy formation, porosity reduction, and property enhancement. Both corrosion properties and hardness were investigated across different selected heat treatment conditions. The specimens exhibiting the highest corrosion resistance and hardness were selected for antibacterial and tarnish resistance testing. Stainless Steel 316 was employed in the antibacterial evaluation as a negative control for comparison. Notably, a fair well distribution of copper and nickel was observed within the as-printed product. The optimal heat treatment condition for the copper-nickel alloy was determined to be 1030 °C followed by air cooling, as it exhibited superior material properties compared to alternative heat treatment conditions. An assessment of antimicrobial performance underscored the alloy’s effectiveness in rapidly eradicating bacteria. Additionally, the highest strength samples underwent a tarnish resistance study, revealing elevated tarnish resistance. The nature of material performance in response to the heat-treatment process and antibacterial performance are discussed.","PeriodicalId":36643,"journal":{"name":"Progress in Additive Manufacturing","volume":"35 1","pages":"0"},"PeriodicalIF":4.4000,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Additive Manufacturing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s40964-023-00517-5","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract The management of infectious diseases has posed a significant challenge in recent years, drawing the attention of scientific communities. Copper is renowned for its robust antimicrobial properties; however, it is susceptible to tarnishing. In contrast, copper-nickel alloy demonstrates not only commendable mechanical strength and corrosion resistance but also exceptional antimicrobial efficacy. A suitable copper-nickel alloy was synthesised using cold spray additive manufacturing, blending copper and nickel powders. The resultant as-printed coupons underwent heat treatment at varying temperatures to ensure alloy formation, porosity reduction, and property enhancement. Both corrosion properties and hardness were investigated across different selected heat treatment conditions. The specimens exhibiting the highest corrosion resistance and hardness were selected for antibacterial and tarnish resistance testing. Stainless Steel 316 was employed in the antibacterial evaluation as a negative control for comparison. Notably, a fair well distribution of copper and nickel was observed within the as-printed product. The optimal heat treatment condition for the copper-nickel alloy was determined to be 1030 °C followed by air cooling, as it exhibited superior material properties compared to alternative heat treatment conditions. An assessment of antimicrobial performance underscored the alloy’s effectiveness in rapidly eradicating bacteria. Additionally, the highest strength samples underwent a tarnish resistance study, revealing elevated tarnish resistance. The nature of material performance in response to the heat-treatment process and antibacterial performance are discussed.
期刊介绍：
Progress in Additive Manufacturing promotes highly scored scientific investigations from academia, government and industry R&D activities. The journal publishes the advances in the processing of different kinds of materials by well-established and new Additive Manufacturing (AM) technologies. Manuscripts showing the progress in the processing and development of multi-materials by hybrid additive manufacturing or by the combination of additive and subtractive manufacturing technologies are also welcome. Progress in Additive Manufacturing serves as a platform for scientists to contribute full papers as well as review articles and short communications analyzing aspects ranging from data processing (new design tools, data formats), simulation, materials (ceramic, metals, polymers, composites, biomaterials and multi-materials), microstructure development, new AM processes or combination of processes (e.g. additive and subtractive, hybrid, multi-steps), parameter and process optimization, new testing methods for AM parts and process monitoring. The journal welcomes manuscripts in several AM topics, including: • Design tools and data format • Material aspects and new developments • Multi-material and composites • Microstructure evolution of AM parts • Optimization of existing processes • Development of new techniques and processing strategies (combination subtractive and additive methods, hybrid processes) • Integration with conventional manufacturing techniques • Innovative applications of AM parts (for tooling, high temperature or high performance applications) • Process monitoring and non-destructive testing of AM parts • Speed-up strategies for AM processes • New test methods and special features of AM parts
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