【摘 要】
：
The influence of strontium(Sr) and rare earth(RE) elements on the corrosion behavior of AZ91D magnesium alloy was investigated by conventional corrosion testing
【机 构】
：
Shanghai Institute of Microsystem and Information Technology
论文部分内容阅读
The influence of strontium(Sr) and rare earth(RE) elements on the corrosion behavior of AZ91D magnesium alloy was investigated by conventional corrosion testing and electrochemical measurements in 3.5% NaCI solution. After comparing the mass loss and hydrogen evolution of the samples, the microstruetures of the alloys and the morphologies of their corrosion product films were characterized by electron probe microanalysis-energy dispersive spectrometry(EPMA-EDS) and Auger electron spectroscopy(AES). Compared with individual addition of Sr or RE to AZ91D, the combinative addition of 0.5% Sr and 1% RE to AZ91D successfully decreases the corrosion rate further, which can be attributed to the depression of micro-galvanic couples, as well as the formation of more protective film due to aluminum enrichment. The combinative addition of strontium and rare earth elements to AZ91D magnesium alloy appears to he a promising approach to increase its corrosion resistance.
其他文献
A series of the Pt-Sn/SBA-15 catalysts were prepared and their properties characterized by using X-ray powder diffraction(XRD),N2 adsorption-desorption,high res
Novel pyridine-containing macrocyclic compounds, such as 6,12,19,25-tetramethyl-7,11,20,24-dinitrilo-dibenzo[b,m]l,4,12,15-tetra-azacyclodoc osine (TMCD), were
The influence of crystallization on the corrosion behavior of Al86Ni6La6Cu2 amorphous alloy in 0.01 M NaCl solution was inves-tigated by electrochemical techniq
The adsorption properties of a novel gel-type weak acid resin (110-H) for Pb2+ were investigated using chemical methods and IR spectrometry. The optimal adsorpt
Using pressure swing adsorption(PSA)technology to purify carbon monoxide(CO)discharged from industria]gases is a high-efficiency and economicalmethod.In.this ar
As the aircraft and aerospace industry and the automobile industry are developed, the demand of reliable materials with high strength and high toughness is stea
Fluoropolymer and different kinds of silica particles were used for controlling surface chemistry and morphology,respectively. A superhydrophobic surface origin
The effects of BaO addition on the phase composition, relative density and electric conductivity ofxCu/10NiO-NiFe2O4 (x=5, 10) cermets were studied, which were
The aggregated nanorings of EuF3 were synthesized via ultrasonic irritation in aqueous solution. The products were characterized by X-ray powder diffraction (XR
BaTiO3 films on Ti substrate were fabricated by alternative current(AC) and direct current(DC) micro arc oxidation (MAO). Microstructures of films were investig