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Multiscale and Multilevel Composite of Solidified TiC-TiB2 with Ti-6Al-4V Achieved by Fusion Bonding in High-Gravity Field

Zhao, Zhong Min ; Zhang, Long ; Wang, Shuan Jie ; Wang, Min Quan

Advanced materials research, 2014, Vol.833, p.136-141 [Periódico revisado por pares]

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Título:
Multiscale and Multilevel Composite of Solidified TiC-TiB2 with Ti-6Al-4V Achieved by Fusion Bonding in High-Gravity Field
Autor: Zhao, Zhong Min ; Zhang, Long ; Wang, Shuan Jie ; Wang, Min Quan
É parte de: Advanced materials research, 2014, Vol.833, p.136-141
Descrição: By putting Ti-6Al-4V plate at the bottom of the blend of (Ti+B 4 C) and the high-energy thermit, a novel laminated composite of TiC-TiB 2 ceramic to Ti alloy is achieved by combustion synthesis in high-gravity field, and within the joint there presents multiscale and multilevel microstructures characterized by size and distribution of TiB 2 and TiB phases, thereby showing microstructure evolution rather than a clear interface from the ceramic to Ti alloy. The reasons for the unique microstructures in the joint came is considered a result of fusion bonding and atomic interdiffusion between liquid TiC-TiB 2 and liquid Ti in thermal vacuum circumstances, followed by a series of metallurgical reaction including peritectic reaction of TiB 2 solid and Ti liquid, direct growth of TiB from Ti liquid and subsequent eutectic reaction of TiB and Ti, so a continuously-graded microstructure consisting of the multiphases in size from micrometer to nanometer is eatablieshed in the joint.
Idioma: Inglês

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