TiB whiskers reinforced high temperature titanium Ti60 alloy composites with novel network microstructure
TiB whiskers reinforced high temperature titanium Ti60 alloy composites with novel network microstructure
复制标题
TiB晶须增强新型网络微观结构高温钛Ti60合金复合材料
DOI：
10.1016/j.matdes.2013.04.048
复制
发表时间：
2013-10-01
影响因子：
8.4
通讯作者：
Wu, L. Z.
中科院分区：
文献类型：
--
作者：
Huang, L. J.;Yang, F. Y.;Wu, L. Z.
TiB whiskers reinforced high temperature titanium Ti60 alloy (TiBw/Ti60) composites with a novel network microstructure have been successfully fabricated by the system of large spherical Ti60 powders and fine TiB2 powders. The results show that the minimum temperature fabricating the composites by reaction hot pressing (RHP) is established to be 1300 degrees C due to usage of high temperature titanium Ti60 alloy. The TiB whiskers are in situ synthesized around large Ti60 matrix particles and then formed a novel three-dimensional (3D) network microstructure. The tensile strength of 8 vol.% TiBw/Ti60 composites with a network microstructure is increased by 61.1%, 57.4% and 45.5% compared with that of the monolithic Ti60 alloy at 600 degrees C, 700 degrees C and 800 degrees C, respectively. The superior improvement can be mainly attributed to the network microstructure, grain refinement and usage of large spherical Ti60 powders. (c) 2013 Elsevier Ltd. All rights reserved.
