材料科学
络腮胡子
胡须
复合材料
极限抗拉强度
复合数
微观结构
延展性(地球科学)
热压
图层(电子)
蠕动
作者
B.X. Liu,Lujun Huang,Geng Li,B. Wang,Xiping Cui,Chao Liu,G.S. Wang
标识
DOI:10.1016/j.msea.2013.06.058
摘要
A novel laminated Ti–TiBw/Ti composites composed of Ti layers and TiB whisker reinforced Ti (TiBw/Ti) composite layers were successfully fabricated by reaction hot-pressing. Herein, the TiBw/Ti composite layers were in situ synthesized by reaction in the system of Ti and TiB2 powders during the hot pressing process. The composite layer can effectively refine grains of Ti layer. Moreover, in-situ synthesized TiB whiskers obviously restrain the growth of Ti matrix grains of the TiBw/Ti composite layers. It is worth pointing out that the in situ synthesized TiBw can strengthen the interface between Ti layer and TiBw/Ti layer. The tensile testing results show that the ultimate strength and the ductility of laminated composites can be increased to 617 MPa and 20.5%, respectively, from 546 MPa and 17.5% of pure Ti, indicating that the strengthening effect and the toughening effect of the composites were effectively exploited by tailoring the novel laminated structure of Ti–TiBw/Ti composites.
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