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论文类型：期刊论文

发表时间：2012-12-23

发表刊物：Applied Mechanics and Materials

收录刊物：EI、Scopus

卷号：312

页面范围：315-318

ISSN号：9783037856901

摘要：In-situ micro/nano-sized TiB2 and Al2(Y, Gd) particles reinforced magnesium matrix composite was successfully fabricated by addition of Al-Ti-B preform into Mg-Gd-Y-Zn matrix alloy, its microstructures and properties were investigated. The results show that the introduction of Al-Ti-B preform causes the precipitation of Al2(Y, Gd) particles and the SHS synthesis of TiB2 particles which significantly refine solidification structure. The reinforced Al2(Y, Gd) particles with average sizes of 5-8 μm are uniformly distributed throughout the magnesium matrix, and have a good bond to the matrix. Tensile tests indicate that, compared with the former matrix alloy, mechanical properties of the multiple in-situ particles reinforced composite are improved all-roundly. © (2013) Trans Tech Publications, Switzerland.