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- Title
Strong and Ductile Ti-6Al-4V Alloy Produced by Hot Pressing of Ti-6Al-4V Swarf.
- Authors
Yang, F.; Pi, Z. Q.; Zhao, Q. Y.; Raynova, S.; Liu, Q.; Sharp, K.; Brandt, M.; Bolzoni, L.; Qian, M.
- Abstract
Ti-6Al-4V (Ti-64) swarf is produced every day in commercial operations but its direct use for the fabrication of strong and ductile Ti-6Al-4V alloy is seldom reported. This study consolidated as-received Ti-64 swarf into near fully dense Ti-6Al-4V alloy by hot pressing. The microstructures and tensile mechanical properties of the hot-pressed Ti-64 alloy and the effect of subsequent solution treatment and ageing (STA) were studied. The hot-pressed Ti-64 achieved tensile yield strength (TYS) of 928-998 MPa, ultimate tensile strength (UTS) of 1076-1139 MPa and strain to fracture of 6.92-7.80%. The STA increased the TYS to 1103-1143 MPa and UTS to 1188-1223 MPa, accompanied by a decline in the strain to fracture to 5.32-6.48%. These tensile property data suggest that it is possible to directly consolidate Ti-6Al-4V swarf into a strong and ductile Ti-6Al-4V alloy by hot pressing for a variety of potential applications.
- Subjects
TITANIUM alloys; TENSILE strength; ALLOYS; METAL fabrication; POWDER metallurgy
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2019, Vol 71, Issue 3, p1056
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-018-3301-6