High-temperature Compressive Performance of Mg Alloy Foams Coated with Ni-P Layer
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2020年第4期
论文作者：卢晓通 罗洪杰 ZHANG Zhigang DU Hao HUANG Wenzhan
文章页码：805 - 811
摘 要：Mg/Ni hybrid foams were fabricated by the electroless method.The Ni-P （Nickel-Phosphorous） coatings were deposited on the surface of closed-cell Mg alloy foams.The composition,microstructure and phases of the Ni-P coatings were characterized by scanning electron microscopy （SEM）,energy-dispersive X-ray spectroscopy （EDS） and X-ray diffraction （XRD）,respectively.The compressive tests were performed on the Mg/Ni hybrid foams at 400 ℃ using the Mg alloy foams as a reference.The experimental results show that the yield strength,plateau stress and energy absorption capacity of the closed-cell Mg alloy foams at high temperature were improved by the Ni-P coating.And there are four main modes for the Mg/Ni hybrid foam failure at 400 ℃,i e,shearing in cell wall,bending in cell edge,shedding and cracking in Ni-P coating.
卢晓通1，罗洪杰1,2，ZHANG Zhigang1，DU Hao3，HUANG Wenzhan1
1. School of Metallurgy, Northeastern University2. Engineering Technology Research Center of Ministry of Education for Materials Advanced Preparation3. Institute of Metal Research, The Chinese Academy of Sciences
摘 要：Mg/Ni hybrid foams were fabricated by the electroless method.The Ni-P （Nickel-Phosphorous） coatings were deposited on the surface of closed-cell Mg alloy foams.The composition,microstructure and phases of the Ni-P coatings were characterized by scanning electron microscopy （SEM）,energy-dispersive X-ray spectroscopy （EDS） and X-ray diffraction （XRD）,respectively.The compressive tests were performed on the Mg/Ni hybrid foams at 400 ℃ using the Mg alloy foams as a reference.The experimental results show that the yield strength,plateau stress and energy absorption capacity of the closed-cell Mg alloy foams at high temperature were improved by the Ni-P coating.And there are four main modes for the Mg/Ni hybrid foam failure at 400 ℃,i e,shearing in cell wall,bending in cell edge,shedding and cracking in Ni-P coating.
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