A novel low-cost titanium alloy sheet was fabricated by electron beam cold hearth melting using titanium alloy scrap and low-cost elemental intermediate alloys.The evolution of its microstructure and mechanical proper...A novel low-cost titanium alloy sheet was fabricated by electron beam cold hearth melting using titanium alloy scrap and low-cost elemental intermediate alloys.The evolution of its microstructure and mechanical properties was systematically investigated following annealing at various temperatures.The findings demonstrated that annealing has a relatively modest effect on the microstructure.As the annealing temperature increases,the lamellarαphase preferentially thickens along its width,while secondaryαappears at higher temperatures.Correspondingly,within the investigated temperature range,the strength of the alloy exhibits a nonmonotonic trend—initially decreasing and then increasing—whereas ductility varies inversely.展开更多
基金supported by the National Key R&D Program of China(No.2022YFB3705601)。
文摘A novel low-cost titanium alloy sheet was fabricated by electron beam cold hearth melting using titanium alloy scrap and low-cost elemental intermediate alloys.The evolution of its microstructure and mechanical properties was systematically investigated following annealing at various temperatures.The findings demonstrated that annealing has a relatively modest effect on the microstructure.As the annealing temperature increases,the lamellarαphase preferentially thickens along its width,while secondaryαappears at higher temperatures.Correspondingly,within the investigated temperature range,the strength of the alloy exhibits a nonmonotonic trend—initially decreasing and then increasing—whereas ductility varies inversely.
