title: The mechanical behavior dependence on the TiB whisker realignment during hot-working in titanium matrix composites.
abstract: Low-cost TiB whiskers reinforced titanium matrix composite (TMCs) was fabricated with enhanced mechanical performances using in situ technologies and hot working. Morphologies observation indicates that needle-like TiB whiskers with a hexagonal transverse section grow along the [010] direction due to B27 crystal structure and its growth mechanism. Mechanical properties tests show that the mechanical behavior of the TiB whiskers reinforced TMCs is dependent on the deformation amplitudes applied in hot-working. The improvement in yield strength by hot-working is attributed to the TiB whiskers realignment and the refinement of microstructure. Models are constructed to evaluate the realignment of TiB whisker during deformation and the increase in yield strength of the composite at elevated temperatures. These models clarify the alignment effect of TiB whiskers under various deformation amplitudes applied in hot-workings and reveals the yield strength dependence on TiB whiskers orientation.
authors: School of Materials Science and Engineering, University of Shanghai for science and technology, Shanghai 200093, PR China.
authors: Fengcang
authors: F
authors: Ma
authors: School of Materials Science and Engineering, University of Shanghai for science and technology, Shanghai 200093, PR China.
authors: Ping
authors: P
authors: Liu
authors: School of Materials Science and Engineering, University of Shanghai for science and technology, Shanghai 200093, PR China.
authors: Wei
authors: W
authors: Li
authors: School of Materials Science and Engineering, University of Shanghai for science and technology, Shanghai 200093, PR China.
authors: Xinkuan
authors: X
authors: Liu
authors: School of Materials Science and Engineering, University of Shanghai for science and technology, Shanghai 200093, PR China.
authors: Xiaohong
authors: X
authors: Chen
authors: School of Materials Science and Engineering, University of Shanghai for science and technology, Shanghai 200093, PR China.
authors: Ke
authors: K
authors: Zhang
authors: School of Materials Science and Engineering, University of Shanghai for science and technology, Shanghai 200093, PR China.
authors: Deng
authors: D
authors: Pan
authors: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, PR China.
authors: Weijie
authors: W
authors: Lu