Abstract
Ti-23Nb-0.7Ta-(0, 2)Zr-(1.2, 4, 6, 10)O alloys were prepared using a non-consumable arcmelting method. The tensile property of Ti-23Nb-0.7Ta-2Zr-1.2O alloys was tested at temperatures from −196◦C to 750◦C. The influence of O and Zr contents on thermal forgeability, room-temperature hardness and tensile property at 750◦C was investigated. For Ti-23Nb-0.7Ta-2Zr-1.2O alloy, the tensile strength decreased, and the ductility increased with the temperature increase. O and Zr had a negative effect on the thermal forgeability. Room-temperature hardness and tensile strength increased with an increase in O and Zr contents due to interstitial, solid solution strengthening and second-phase strengthening. All of the alloys exhibited high ductility at 750◦C with the total elongation above 34% and reductions in area above 80%.
Original language | English |
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Article number | 1018 |
Number of pages | 13 |
Journal | Metals |
Volume | 12 |
Issue number | 6 |
DOIs | |
Publication status | Published - 16 Jun 2022 |
Keywords
- element
- mechanical property
- microstructure
- titanium alloy