Abstract
The solution treating and quenching of titanium alloy Ti6Al4V were studied to improve fatigue resistance. Four separate heats of Ti6Al4V rod were solution treated at temperatures ranging from 825 to 1040 °C and then water quenched. Particular solution-treating temperatures in the α + β field produced distinct improvements in fatigue resistance compared with the annealed and solution-treated plus aged conditions. The optimum solution-treating temperature varied for each heat, but typically was about 875–900 °C. The resistance of solution-treated and quenched materials to cyclic strain was also significantly increased over their entire lifetime range. Optimum solution-treated and quenched conditions were characterized by low yield strengths, low elastic moduli and high work-hardening rates. During constant-strain-amplitude cyclic loading, solution-treated and quenched samples also exhibited significantly lower rates of strain softening, indicating a higher cyclic stability than annealed or aged material. The effects of solution treating and quenching in Ti6Al4V appear to be general, thus suggesting the possibility of improving the fatigue resistance in other α + β titanium alloys.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
