- （SCI）Electroless nickel-plating on die cast magnesium alloy AZ91D
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- 所属单位：材料科学工程学院
- 教研室：材料科学工程学院
- 发表刊物：Transactions of Nonferrous Metals Society of China
- 项目来源：其他课题
- 关键字：electroless nickel-plating; die cast magnesium alloy; corrosion resistance; polarization
- 摘要：Electroless nickel-plating on die cast magnesium alloy AZ91D was investigated. Growth of the electroless nickel-plating coating was characterized using scanning electron microscopy. Corrosion resistance of the coating was evaluated by open circuit potential and potentiodynamic polarization curves in 3.5% (mass fraction) NaCl solution. The results show that plating deposition is initiated on the crevices and then spread onto primary α phase. The corrosion potentials for die cast magnesium alloy AZ91D and nickel-plating coating are about −1.45 V and −0.36 V (vs. SCE), respectively. No discoloration, cracks, blisters, or peeling appear by heat-quench test. The results show that the corrosion potential of Ni-P coating is increased by 1 000 mV and corrosion resistance for die cast magnesium alloy AZ91D is improved. The adhesion between the coating and the substrate is excellent. Electroless nickel plating is a promising method to enhance magnesium alloys resistance for attacking.
- 第一作者：贾素秋
- 论文类型：期刊论文
- 期号：2007-S1
- 页面范围：2
- 是否译文：否
- 发表时间：2007-11-26
