Results 221 to 230 of about 11,240,897 (283)
Materials and Corrosion, EarlyView.The corrosion rates of two types of magnesium alloys in an alkaline solution containing crushed ordinary Portland cement paste grains decreased with increasing immersion time. This decrease was attributed to the formation of a protective layer containing brucite and hydrotalcite on the specimen surfaces.
Kazutoshi Fujiwara +5 more
wiley +1 more source
Materials and Corrosion, EarlyView.Through a combination of in situ electrochemical corrosion rate measurements and FactSage thermochemistry modeling, chloride and sulphate ions were found to influence the corrosion of carbon steel in high‐temperature boiler water through distinct mechanisms: chloride acidifies the solution, raising iron solubility, while sulphate leaves solubility ...
Benjamin A. Loder, William G. Cook
wiley +1 more source
Effect of Heat Treatment on Hydrogen Embrittlement of Electrodeposited Copper
Materials and Corrosion, EarlyView.This work explores how entrapped hydrogen can cause embrittlement of copper, although this embrittlement is only evidenced during slow strain testing. We demonstrate that significant amounts of hydrogen are trapped in nano‐cavities and investigate the impact of heat treatment in changing the hydrogen distribution and the resulting embrittlement ...
Hamidreza M. Shirazi +9 more
wiley +1 more source
Materials and Corrosion, EarlyView.Copper is exposed to anoxic hydrogen sulfide gas addressing a knowledge gap in the literature, and the corrosion products are characterized using electron microscopy. The results are compared with existing models for corrosion, and new theories are proposed.
Benjamin D. C. Hackett +6 more
wiley +1 more source
Polycarbonate Vitrimers and Dynamic Co‐Networks From Epoxide/Carbon Dioxide Copolymerization
Macromolecular Rapid Communications, EarlyView.This work demonstrates how CO2‐derived poly(propylene carbonate) and poly(cyclohexene carbonate) backbones influence vitrimer thermo‐mechanical behavior. By tuning backbone composition, epoxide crosslinker chemistry and blend ratios, the crosslinked materials span a wide property window, from highly extensible to stiff, glassy networks, establishing an
Satej S. Joshi +3 more
wiley +1 more source
Image Processing for On-Line Detection of Welding Process (Report II) : Binary Processing for the Image of Arc Welding Process(Welding Physics, Processes & Instruments)openaire +1 more source
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Navigation of Welding Torch for Arc Welding Process
IFAC Proceedings Volumes, 2014Abstract Torch position, traveling speed, and attitude play an important role in welding quality control for both manual and robotic arc welding process. Besides, their detection may facilitate welding process monitoring, welder training, as well as novel ways for many other interesting and useful applications.
WeiJie Zhang, Jun Xiao, YuMing Zhang
openaire +1 more source
[New welding processes and health effects of welding].
Giornale italiano di medicina del lavoro ed ergonomia, 2011This paper describes some of the recent developments in the control technology to enhance capability of Pulse Gas Metal Arc Welding. Friction Stir Welding (FSW) processing has been also considered. FSW is a new solid-state joining technique. Heat generated by friction at the rotating tool softens the material being welded. FSW can be considered a green
La Vecchia GM, MAESTRELLI, PIERO
openaire +2 more sources