Electrochemical deposition of rhenium-iron alloy from water-in-salt electrolytes containing a super-high concentration lithium chloride is investigated. Different techniques, including cyclic voltammetry, chronoamperometry, X-ray fluorescence, scanning electron microscope, X-Ray diffraction, and electrical measurements at cryogenic temperature are used to characterize the electrochemical system...

We report on a theoretical investigation of the electronic structure and magnetic properties of the pseudobinary Y (Fel-,Co,)2 Laves phase alloys. The magnetic properties are found to be well described by a Slater-Pauling curve with a maximum of the magnetisation at z = 0.25. A Fixed Spin Moment (FSM) calculation is used to describe the disappearance of the magnetic moment as a function of allo...

A dynamic light scattering (DLS) method was adopted for measuring the corrosion of iron nanoparticles. The average diameter of the nanoparticles in a sodium chloride suspension increased linearly with time as iron oxide layers formed around the nanoparticles. The nanoparticle corrosion rate determined by DLS was found to be almost identical to the value obtained by conventional immersion tests ...

The alkali melting method was used to pretreat the specimens of Neodymium-iron-boron alloy, and inductively coupled plasma atomic emission spectrometer determine main element boron in NdFeB alloy. parameters instrument were optimized select best spectral line for determination boron, effect matrix overcome by adding Fe. has good precision accuracy, recoveries are range 99%∼101%, RSD less than 1...

The repairing technology based on laser rapid fusion is becoming an important tool for fixing grey cast iron equipment efficiently. A laser repairing protocol was developed using Fe-based alloy powders as material. The microstructure and fracturing feature of the repaired zone (RZ) were analyzed. The results showed that regionally organized RZ with good density and reliable metallurgical bond c...

Most new materials are introduced by selectively comparing their properties against those of steels. Steels set this standard because iron and its alloys have so much potential that new concepts are discovered and implemented with notorious regularity. In this 52nd Hatfield Memorial Lecture, I describe a remarkably beautiful microstructure consisting of slender crystals of ferrite, whose contro...

The present study was performed on two AlSi7Cu3 alloys with different Fe and Mn contents (standard alloy high-Fe/Mn alloy). evolution of microstructures during solidification the standard investigated by thermal analysis interrupted quenching test. effect content reaction sequence were studied. results show that increasing changes precipitation iron-intermetallic α-Al15 (Fe,Mn)3Si2 β-Al5FeSi, l...

A new chromophoric reagent, 2-ketobutyric acid thiosemicarbazone (KBAT) has been used for the simultaneous determination of iron, copper and vanadium. KBAT forms yellowish-green and blue complexes with iron (II) and copper (II) respectively at pH 6.5 and a yellow complex with vanadium (V) at pH 5.5. Calibration graphs for the individual determinations by second derivative spectrophotometry were...

There is renewed interest in the origin and makeup of ferromanganese nodules (FMNs), long known to soil mineralogists as unusual secondary minerals. However, new evidence suggests that microorganisms play a significant role in the generation of FMNs. The biogenic origin of nodules has remained elusive because until recently, little has been known about the overall microbial community structure ...

Cast iron is a very common and useful metal alloy, characterized by its high carbon content (>4%) in the allotropic state of graphite. The correct shape distribution graphite are essential for ensuring that material has right properties. present investigation examines metallurgical mechanical characterization spheroidal (nodular) cast iron, an alloy derives name excellent properties from pre...