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Zhu X.-X.,National Engineering and Technology Research Center for Nonferrous Metal Matrix Composites | Li C.-D.,National Engineering and Technology Research Center for Nonferrous Metal Matrix Composites | Zhang Q.-X.,National Engineering and Technology Research Center for Nonferrous Metal Matrix Composites | Huang Z.-Q.,China offshore Oil Engineering Co. | Li J.,China offshore Oil Engineering Co.
Yejin Fenxi/Metallurgical Analysis | Year: 2010

According to the composition design table of aluminum sacrificial anode, a series of reference materials of aluminum sacrificial anode for the spectral analysis containing nine elements (zinc, indium, cadmium, iron, cooper, silicon, tin, magnesium and titanium) was developed through reasonable smelting and casting processes. The metallurgical structure observation and homogeneity test showed that the structure of these reference materials were dense with homogeneous composition. The characterisation analysis was conducted by entrusting eight qualified laboratories using different and reliable analytical methods. The feedback data of the laboratories were processed according to statistical principle to evaluate the certified value and expanded uncertainty of characterisation element. The linearity of characterisation elements was investigated. The results indicated that the linearity was good. The content exhibited certain graded distribution. The developed reference materials could be applied to the ladle and quality control analysis of aluminum sacrificial anode materials.


Zhao W.,General Research Institute for Nonferrous Metals, China | Zhao W.,National Engineering and Technology Research Center for Nonferrous Metal Matrix Composites | Xu J.,General Research Institute for Nonferrous Metals, China | Xu J.,National Engineering and Technology Research Center for Nonferrous Metal Matrix Composites | And 3 more authors.
Fenmo Yejin Jishu/Powder Metallurgy Technology | Year: 2010

A method of making superfine pre-alloying powder by the way of co-precipitation-decomposition was introduced. Deoxidized products of complex oxides of FeNiCu(AP1) at different temperature stage were anaiyzed by X-ray diffraction(XRD) and scanning electronic microscope (SEM), and the phase and morphology of pre-alloying powder of FeNiCuSn(AM1), FeCoCu(AS1), CuSn(CST) were studied, specific surface area, particle size, D50, apparent density and the content of oxygen of the powder were determined. The characteristics of these powders were presented.

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