Ductile-Phase Toughening in TiBw/Ti-Ti3Al Metallic-Intermetallic Laminate Composites

作者：Wu, Hao^*; Jin, Bo Cheng; Geng, Lin; Fan, Guohua; Cui, Xiping; Huang, Meng; Hicks, Rodrigo Mier; Nutt, Steven

来源：Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, 2015, 46A(9): 3803-3807.

DOI：10.1007/s11661-015-3025-y

• FRACTURE-BEHAVIOR
• DEFORMATION
• MULTILAYERS
• STRENGTH
• TEXTURE
• COPPER
• TI3AL
• SHEET

The concept of ductile-phase toughening was explored in a metallic-intermetallic laminate (MIL) composite comprising alternating layers of Ti3Al and TiBw/Ti. The laminates, in which the TiBw/Ti layers were intended to impart toughness to the brittle Ti3Al, were fabricated in situ by hot pressing and reaction annealing. Compared with monolithic Ti3Al, the MIL composite exhibited marked increases in both fracture toughness and tensile elongation because of stress redistribution and strain delocalization by in situ interfaces.

• 出版日期2015-9
• 单位哈尔滨工业大学