Copper alloy
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A Review of the Recent Developments and Challenges in Wire Arc Additive Manufacturing (WAAM) Process Open
Wire arc additive manufacturing (WAAM) is an emerging and promising technology for producing medium-to-large-scale metallic components/structures for different industries, i.e., aerospace, automotive, shipbuilding, etc. It is now a feasibl…
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Copper Alloy Touch Surfaces in Healthcare Facilities: An Effective Solution to Prevent Bacterial Spreading Open
In the healthcare environment, microorganisms’ cross-transmission between inanimate surfaces and patients or healthcare workers can lead to healthcare-associated infections. A recent interest has grown to create antimicrobial copper touch …
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“Life-like” assessment of antimicrobial surfaces by a new touch transfer assay displays strong superiority of a copper alloy compared to silver containing surfaces Open
Transmission of bacteria from inanimate surfaces in healthcare associated environments is an important source of hospital acquired infections. A number of commercially available medical devices promise to fulfill antibacterial activity to …
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Testing New Coatings for Outdoor Bronze Monuments: A Methodological Overview Open
Coatings to be used for cultural heritage protection face peculiar challenges. In the last few decades, several projects addressed the issue of new treatments in the field of copper alloy artworks. Nonetheless, no one has yet been recognis…
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Non‐Destructive Survey of Early Roman Copper‐Alloy Brooches using Portable X‐ray Fluorescence Spectrometry Open
This paper argues that portable X‐ray fluorescence spectrometry (pXRF) is a suitable elemental measurement technique to study the production of copper‐alloy artefacts. However, rather than try to imitate the accuracy and precision of labor…
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Preparation and Property of MXene/Copper Alloy Composites Open
司晓阳, 陈凡燕, 邓启煌, 都时禹, 黄 庆 (中国科学院 宁波材料技术与工程研究所 特种纤维与核能材料工程实验室
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Study on Friction and Wear Properties of New Self-Lubricating Bearing Materials Open
In this paper, friction and wear tests were carried out: 45# steel (carbon steel) was rubbed with aluminum bronze, aluminum bronze-based inlaid solid self-lubricating bearing (ISSLB) material, tin bronze, and tin bronze-based ISSLB materia…
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Corrosion Behavior of High-Strength C71500 Copper-Nickel Alloy in Simulated Seawater with High Concentration of Sulfide Open
The corrosion behavior of high-strength C71500 copper-nickel alloy in high concentrations of sulfide-polluted seawater was studied by potentiodynamic polarization measurements, electrochemical impedance spectroscopy (EIS), immersion testin…
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Long-Term Embrittlement of Ancient Copper and Silver Alloys Open
The manifestations of ancient metals’ embrittlement, cracking and fracture, are challenging problems for restorers and conservators, yet the scientific understanding of these problems is limited. In particular, the study and interpretation…
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Plasma electrolytic oxidation as an effective tool for production of copper incorporated bacteriostatic coatings on Ti-15Mo alloy Open
This report describes the plasma electrolytic oxidation (PEO) treatment of Ti-15Mo alloy surfaces in baths containing 0.1 M Ca(H2PO2)2 with different insoluble copper-based additives: CuO or Cu3(PO4)2. The aim of this work was to fabricate…
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In Situ Monitoring of the Antibacterial Activity of a Copper–Silver Alloy Using Confocal Laser Scanning Microscopy and pH Microsensors Open
The antibacterial efficacy of a copper–silver alloy coating under conditions resembling build up of dry surface bacterial biofilms is successfully demonstrated according to US EPA test methods with a ≥99.9% reduction of test organisms over…
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Influence of trace Mn doping on the high-speed shear performance of lead-free alloy/copper solder joints: Experimental and first principles investigation Open
This study aims to investigate the mechanical properties changes and the underlying reasons caused by Mn addition to the Cu6Sn5 intermetallic compounds (IMC). For this purpose, 0.07 wt.% Mn doped SnAgCu (SAC)305/Cu joint were prepared to o…
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Recycling‐Induced Copper Contamination of a 42CrMo4 Quench and Tempering Steel: Alterations in Transformation Behavior and Mechanical Properties Open
The transformation behavior and the mechanical properties of three laboratory produced steels are presented. To investigate the influence of copper contamination, the reference alloy 42CrMo4 is modified and alloyed with 0.5 and 1.0 wt% cop…
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Microscopic and microanalytical study on Sasanian metal objects from Western Iran: A case study Open
Recent archaeological excavation in western Iran discovered a Sasanian palace called Ghaleh Guri (Qela Gowri) beside of the Seimarreh River. As part of the archaeometric studies on the site, five metallic objects (a coin, a disc, a vessel,…
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Copper at ancient Kerma: A diachronic investigation of alloys and raw materials Open
status: Published
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Investigations of microstructure and mechanical properties of brass alloys produced by sand casting method at different casting temperatures Open
Brass, which is an alloy of copper and zinc, is of historical and lasting importance due to its hardness and workability. Indeed, to make this metal alloy, ancient metalworkers around the Mediterranean Sea were able to melt copper with zin…
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Selective laser melting of copper alloy Open
Additive Manufacturing (AM) of copper and its alloys is a promising way to produce parts with complex geometries without tooling. One of the AM processes is Selective Laser Melting (SLM) technology that uses a laser beam to fuse powder lay…
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Investigations on Copper Cast Cakes, Sickle Fragments and a Spout Axe of the Hoard Find from Drassburg/Burgenland Open
The Bronze Age hoard from Drassburg contains among other objects cast cakes, sickles, spout axes and fragments of these. Ten copper alloy samples were examined by metallography. The high Pb content of three cast cakes indicates that Pb or …
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Silver, Copper, and Bronze in Early Dynastic Ur, Mesopotamia. A High-Resolution Analysis Approach Open
The excavations of the Royal Tombs of Ur by Leonard Woolley in the 1920s to 30s provided a great wealth of precious metal artefacts, which must have travelled a long way due to their location in the metal-poor alluvial plains of the Euphra…
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Structural analysis of selective laser melted copper-tin alloy Open
Additively manufactured complex geometries from copper alloys with high thermal and mechanical properties have drawn the attention of researchers. The present contribution explores the additive manufacturing (AM) of copper-based alloys fro…
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Development of copper alloy by microwave hybrid heating technique and its characterization Open
Material deterioration caused during service life led to the development of erosive/corrosive resistant materials.The present work focuses on characterization of an alloy, naval brass, developed by microwave hybrid heating method, which is…
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Enhanced corrosion protection of copper alloy in 2.0 M HNO3 solution using expired solo sept, slim-lax and well derm drugs Open
Three expired drugs, Solo Sept (SS), Slim-lax (SL), and Well Derm (WD), have been tested as corrosion inhibitors for corrosion of copper alloy (C10100) in 2.0 M HNO3 solution. Three experimental methods such as weight loss measurements, po…
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Effect of the building orientation on additively manufactured copper alloy: Hydraulic performance of different surface roughness channels Open
The additive manufacturing capabilities open new frontiers in the design of complex geometries in many different application fields, especially thermal science, in which multi-functional, efficient, compact components with internal cooling…
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Dynamic Material Flow Analysis of Copper and Copper Alloy in Global Scale —Forecast of In-Use Stock and Inputs and the Estimation of Scrap Recovery Potential— Open
The recovery of copper (Cu) from secondary sources has received much attention because of its scarcity of natural resources. In this work, we estimated the input, in-use stock and discard of copper and copper alloy during 1950-2015 in glob…
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Influence of the concentration of NaHCO3 solution on cavitation erosion of copper alloy Open
To investigate the ultrasonic cavitation erosion in NaHCO3 solutions, experiments with copper alloy specimens were carried out. Three NaHCO3 solutions with concentrations of 0.3%, 3% and 6% were used as liquid mediums in which the vibratio…
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Rituals, Hoards and Travellers? Archaeometry of the Iron Age Bronze Wheel Amulets Open
This paper aims to discuss the origin and significance of the so-called spoked-wheel amulets from the late Iron Age (3 rd to 1 st century BC).The type with eight spokes, which most resembles a real chariot wheel, was discovered to be made …
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Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches Open
The inhibition efficacies of two porphyrin molecules, namely, 5,10,15,20-tetra-[m-(methoxy) phenyl] porphyrin (m-TMPP) and 5,10,15,20-tetra-[p-(methoxy)phenyl] porphyrin (p-TMPP) on the corrosion of copper alloy (C12510) in 1.0 M H2SO4 sol…
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Copper-Silver Alloy Coated Door Handles as a Potential Antibacterial Strategy in Clinical Settings Open
Coating surfaces with a copper-silver alloy in clinical settings can be an alternative or complementary antibacterial strategy to other existing technologies and disinfection interventions. A newly developed copper-silver alloy coating has…
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Heterostructure and multiple nano-phases achieve superior strength-ductility-conductivity synergy of laser additive manufacturing copper alloy Open
Synchronous improvement in strength, ductility and conductivity is a challenge for copper alloys. We propose introducing a heterostructure and multiple nano-phases into copper alloys to improve the comprehensive properties of Cu-Cr-Nb-(Y) …
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Between Centre and Periphery: Early Egyptian and Nubian Copper Alloy Artefacts in the Collection of the Kunsthistorisches Museum Vienna (KHM) Open
The article reports on the results of the project of non-destructive X-ray fluorescence analysis of 15 artefacts, deposited in the Egyptian and Near Eastern Collection of the Kunsthistorisches Museum Wien. Artefacts from the sites of Giza,…