点击次数：

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.