To prolong the service time of ship and seawater piping systems, titanium alloys have a series excellent properties, such as their low density, high strength, corrosion resistance, they become main material used in ocean engineering. A welded joint is nonuniform structure that composed weld seam (WM), base metal (BM), heat-affected zone (HAZ). When an alloy used, it easier to form galvanic corr...

Bis(2-ethylhexyl) phosphate (BEHP) was exposed to carbon steel surfaces from dry and water-saturated dodecane. The resulting changes the were characterised using spectroscopic techniques (energy dispersive X-ray (EDX), photoelectron (XPS), far-infrared reflection absorption (RAIRS) spectroscopies) polarised neutron reflectometry (PNR). Although there no observable affinity of BEHP surface in so...

Due to its excellent performance, 90-10 cupronickel has been widely used as a pipeline for marine engineering. However, due the harsh service conditions of flowing seawater, problem corrosion leakage is extremely serious. One most common locations welding joint. In this paper, electrochemical impedance spectroscopy, surface morphology analysis techniques (scanning electron energy disperse three...

Cover: Corrosion of stainless steel ropes from a nominally austenitic alloy in seawater may result hollow wires. This phenomenon was replicated by electrochemical tests and analysis EBSD data indicates the susceptibility to such preferential axial corrosion being much more related crystal orientation than amount α'-martensite induced cold drawing Different production technologies significantly ...

this work reports the comparative study of heavy metal water concentrations fromtwo coastal ecosystems ofcadizgulf (swspain): bay of cadiz and ria ofhuelva estuary in samplestaken on years 1999-2000. sampling zones showed different heavymetal levels. statistical analysisof dissolved trace metal concentrations (cu, zn, cd and pb) showed significant differences betweenhuelva and cadiz zones based...

We report the production of an efficient anti-corrosive coating of cold-rolled (CR) steel in a seawater environment (∼3.5 wt% NaCl aqueous solution) using an oil-based graphene oxide ink. The graphene oxide was produced by heating Aeschynomene aspera plant as a carbon source at 1600 °C in an argon atmosphere. The ink was prepared by cup-milling the mixture of graphene oxide and sunflower oil fo...

Desalinated seawater enters the urban water supply network on a large scale, which brings new challenges to quality assurance. In order strengthen safety supervision of pipeline network, ensure stability quality, prevent corrosion, and avoid “red water” problem, this study constructed system for desalinated entering network. system, on-line monitoring can monitor quantity, pressure corrosion in...