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- Title
Research on Hot Compressive Deformation of TiBw/TA15 Composite Cylindrical Billet with Network-Distributed Reinforcements.
- Authors
Zhang, Rui; Wang, DongJun; Yuan, ShiJian
- Abstract
A TA15 matrix composite reinforced by 3.5 vol.% TiB whiskers with a network microstructure was fabricated by the reaction hot pressing method. After sintering, the composite developed a net-like microstructure. To improve the mechanical properties, a cylindrical billet of the as-sintered TiBw/TA15 composite was subjected to upsetting and swaging operations with intermediate heating at 1000°C. The original equiaxed network units were stretched slightly, and the matrix had a microstructure evolution from a basket structure to a bi-modal structure after hot forging. The results of tensile tests at room temperature showed that the ultimate tensile strength and elongation of the composite increased by 8.2% and 130%, respectively, while the yield strength appeared to remain constant. Furthermore, the mechanical properties of the as-forged composite also improved at an elevated temperature.
- Subjects
TITANIUM alloys; DEFORMATIONS (Mechanics); COMPOSITE materials; METALLIC whiskers; SWAGING
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2017, Vol 69, Issue 10, p1830
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-017-2477-5