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Shi Z.,Advanced Material Research and Development Center | Niu L.,Advanced Material Research and Development Center | Lin J.,Advanced Material Research and Development Center | Sun D.,Advanced Material Research and Development Center | And 3 more authors.
Materials Science Forum | Year: 2013

One kind of deformed magnesium alloy with high strength and high plasticity was made to be bicycle parts. Meantime, the microstructure and mechanical properties of the magnesium alloy were analyzed. In addition, the deformation and welding technology of taper pipe and shaped tube of bicycle were studied. The results showed that the bicycle parts manufactured through extruding and welding of the new type magnesium alloy have high strength, good plasticity. The tensile strength can reach 321.3 MPa and the elongation is more than 20%. By adopting the new welding process of internal mending and cuttage grafting, the after-welding-strength is 90.2%. of the base metal Meanwhile, the industrialization level can meet the requirements of European Union (EU) vehicle standards. © (2013) Trans Tech Publications, Switzerland.


Niu L.-Y.,Advanced Material Research and Development Center | Lin J.-X.,Advanced Material Research and Development Center | Li Y.,Advanced Material Research and Development Center | Shi Z.-M.,Advanced Material Research and Development Center | Xu L.-C.,Advanced Material Research and Development Center
Transactions of Nonferrous Metals Society of China (English Edition) | Year: 2010

A new surface protection process was developed to magnesium alloy against corrosion in aggressive environments. Firstly, a phosphate coating was formed on rinsed magnesium alloy. Then, powder painting was carried out on the phosphated magnesium alloy. Surface morphologies and phase compositions of the phosphate coating were investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM). The results show that the phosphate coatings formed in bath containing earth additives at room temperature have dense and fine microstructure. The phosphate coating provides excellent paint adhesion to the magnesium alloy. Salt spray tests indicate that the corrosion resistance of the phosphate coating plus paint could meet the demand of magnesium alloy automobile components in aggressive environments.

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