Abstract

Strength and stiffness of conventional titanium alloys (e.g., Ti-6Al-4V) can be significantly improved while maintaining adequate fracture properties via additions of small amounts of boron. Boron-modified titanium alloys have the potential to expand the usage of titanium and are attractive for a variety of applications in the automotive, aerospace, biomedical, and sporting goods industries. The improvements in the mechanical properties of boronmodified titanium alloys are attributed to the presence of TiB whiskers that precipitate in-situ during processing. Significant progress has been made in representation, modeling, and simulation of microstructure-properties relationships in boron-modified titanium alloys. These findings are reviewed in this paper with emphasis on the latest developments in quantitative characterization, mathematical representation, and computer simulations of microstructures of boronmodified Ti-6Al-4V alloys, and their use in the modeling and simulation of the mechanical response.

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