This paper presents results of investigation of the microstructure, elemental composition and corrosion resistance of the samples of low-alloy steel widely used in the engineering, after the application of laser cladding. The level of corrosion damage and the corrosion mechanism of cladded steel ...
The elemental composition of the specimen's surface was inspected using the XPS technique, to provide evidence about the nature of the adsorption process of the inhibitive layer on the C-steel surface. In this way the type of chemical bonding on the surface of carbon steel was recorded. XPS ...
2.1. Preparation of steel coupon The API 5L X70 steel substrate studied within this work is from EVRAZ North America. It was cut into coin-shaped coupons (diameter 1.2 cm with one masked surface) with exposure area of 1 cm2. The steel substrate has the elemental composition: C (0.04...
accelerated corrosion progressed along the electrochemically active interface formed by the ferrite-cementite phase boundary, claiming adjoining portions of abutting ferrite grains, leaving the cementite composition unaffected, and trapping the dislodged cementite grain within the resulting cavity. On the bulk...
The properties of coated carbon layers are influenced by CVD temperature, time, precursor composition, and membrane surface properties [111,130,131]. For example, the ratio of iron salts and polyvinylpyrrolidone (PVP) in the precursor affected the orientation and height of CNTs on membrane ...
The corrosion behaviour of carbon steel in wet elemental sulphur under both aerobic and anaerobic conditions is reported. The corrosion reaction was studied as a function of the initial pH of the system and the particle size of sulphur. Catastrophic corrosion is observed after an induction period ...
Experimentalmethod Rebarwascutintofour8-mm-longspecimensandXPSanalyseswereperformedtoobtainelemental compositionofthesamples.Table1showstheelementsofthespecimensanditisobservedthatthemain componentsofsamplesareFe,Mn,Si,CandCu. Theconcreteporesolution(CPsolution)withpH=13.3waspreparedandthreespecimenswere immersedin...
Solid steel sample dissolution with electrolysis-inductively coupled plasma atomic emission spectrometry (ICP-AES) is applicable to multielemental analysis... M Aimoto,H Kondo,A Ono - Tetsu- to- Hagane 被引量: 1发表: 2007年 A RAPID TRACER METHOD FOR THE DETERMINATION OF RADIOLYTIC CARBON DIOXIDE...
microscopy (SEM) images were taken by a JSM-7800F microscope operated at an accelerating voltage of 1.5 kV, which were used to obtain the surface morphology and elemental composition of the prepared catalysts. SEM with dispersive spectroscopy (SEM-EDS) was used to attain the elemental maps. ...
7e. The corresponding EDS elemental mapping clearly revealed the composition of R-Si@PVB100; Si-K signals (yellow dots) are concentrated on inner region of R-Si@PVB100 but C-K signals (red dots) covers the entire area of R-Si@PVB100. This result indicates that silicon nanoparticles were...