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沈娟,杨素媛,郭丹,贺静怡.TiNiSMA丝增强AZ31镁合金复合材料的制备及性能[J].稀有金属材料与工程(英文),2018,47(10):3218~3222.[Shen Juan,Yang Suyuan,Guo Dan and He Jingyi.Preparation and Properties of TiNi SMA Reinforced AZ31 Magnesium Matrix Composite[J].Rare Metal Materials and Engineering,2018,47(10):3218~3222.]
Preparation and Properties of TiNi SMA Reinforced AZ31 Magnesium Matrix Composite
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Received:January 06, 2017  Revised:September 09, 2018
DOI:
Key words: Vacuum hot-pressing  TiNi shape memory alloy  magnesium-matrix composite  microstructure  mechanical properties
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Author NameAffiliation
Shen Juan,Yang Suyuan,Guo Dan and He Jingyi  
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Abstract:
      Magnesium matrix composite was fabricated by vacuum hot pressing technique utilizingTiNishape memory alloy as reinforcement and AZ31 plate as matrix. The microstructure and mechanical properties of the composites at room temperature and elevated temperature were studied by optical microscope, SEM, EDS, DSC and tensile test. The results show:The interfacial bonding of the composites was good. The Mg element in the matrix and the Ti and Ni elements in the TiNi alloy diffused to form an interdiffusion layer of about 1 μm. The mechanical properties of the composites at elevated temperature were better than those at room temperature. The yield strength, tensile strength and elastic modulus of the composites were increased by 61MPa、41MPa and 6.05GPa respectively at 100℃ than at room temperature. The yield strength, tensile strength and elastic modulus of the composites were increased by 39MPa、72MPaand 12.19GPa respectively at 150℃ than at room temperature.