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Preparation of Fe_3Si Alloy Powders by High Energy Ball Milling

Quan Xie

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Abstract

Mechanical alloying(MA) process of Fe75Si25 powder was studied by high energy ball milling under different milling conditions.Phase formation,crystal structures,grain sizes and lattice constant were characterized by means of X-ray diffraction(XRD),scanning electron microscopy(SEM).The results indicate that ball milling time,percentage loading of mill and drum′s speed of rotation have important influence on MA process.The saturated solid solution alloy α-Fe(Si) formed through Si atoms entered into Fe lattice after 55h of ball milling,and grain sizes reduce to 7~8nm.

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What this paper is about

Mechanical alloying(MA) process of Fe75Si25 powder was studied by high energy ball milling under different milling conditions.Phase formation,crystal structures,grain sizes and lattice constant were characterized by means of X-ray diffraction(XRD),scanning electron microscopy(SEM).The results indicate that ball milling time,percentage loading of mill and drum′s speed of rotation have important influence on MA process.The saturated solid solution alloy α-Fe(Si) formed through Si atoms entered into Fe lattice after 55h of ball milling,and grain sizes reduce to 7~8nm.

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Available abstract

Mechanical alloying(MA) process of Fe75Si25 powder was studied by high energy ball milling under different milling conditions.Phase formation,crystal structures,grain sizes and lattice constant were characterized by means of X-ray diffraction(XRD),scanning electron microscopy(SEM).The results indicate that ball milling time,percentage loading of mill and drum′s speed of rotation have important influence on MA process.The saturated solid solution alloy α-Fe(Si) formed through Si atoms entered into Fe lattice after 55h of ball milling,and grain sizes reduce to 7~8nm.

Key concepts: Ball mill, Materials science, Alloy, Scanning electron microscope, Lattice constant, Metallurgy, Grain size, Rotational speed

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