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The novel laminated Ti-TiBw/Ti composites composed of pure Ti layers and Ti Bw/Ti composite layers have been successfully fabricated by reactive hot pressing. Herein, two-scale structures formed: the pure Ti layer and Ti Bw/Ti composite layer together constructed a laminated structure at a macro scale. Furthermore, Ti Bw reinforcement was distributed around Ti particles and then formed a network microstructure in Ti Bw/Ti composite layer at a micro scale. The laminated Ti-Ti Bw/Ti composites reveal a superior combination of high strength and high elongation due to two-scale structures compared with the pure Ti, and a further enhancement in ductility compared with the network structured composites. Moreover, the elastic modulus of the laminated composites can be predicted by H-Supper bound, which is consistent with the experimental values.
The novel laminated Ti-TiBw / Ti composites composed of pure Ti layers and Ti Bw / Ti composite layers have been successfully fabricated by reactive hot pressing. Herein, two-scale structures formed: the pure Ti layer and Ti Bw / Ti composite layer together constructed Ti, Ti Bw / Ti composite layers at a micro scale. Ti, Ti Bw / Ti composites reveal a superior combination of high strength and high elongation due to two-scale structures compared with the pure Ti, and a further enhancement in ductility compared with the network structured composites. Moreover, the elastic modulus of the laminated composites can be predicted by H-Supper bound, which is consistent with the experimental values.