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Influence of Nb Modification on the Superplastic Behavior and Mechanical Properties of Titanium Alloy at 650 ℃

  • Harbin Institute of Technology

Research output: Contribution to conferencePaperpeer-review

Abstract

To study the superplastic behavior and mechanical properties below recrystallization temperature, titanium alloy with different Nb content were stretched at 650 ℃. The results show that Ti-9Nb titanium alloy shows the best tensile strength (307.2 MPa) and superplasticity (106%). The thermal effect in the process of high temperature drawing leads to the precipitation of α phase. Due to the modification of Nb element, its content decreased gradually. Therefore, the tensile strength and plasticity first increase and then decrease. The superplastic mechanism of Ti-9Nb alloy is mainly caused by dislocation motion.

Original languageEnglish
Pages216-217
Number of pages2
StatePublished - 2024
Event75th World Foundry Congress, WFC 2024 - Deyang, China
Duration: 25 Oct 202430 Oct 2024

Conference

Conference75th World Foundry Congress, WFC 2024
Country/TerritoryChina
CityDeyang
Period25/10/2430/10/24

Keywords

  • Mechanical properties
  • Niobium element
  • Superplastic
  • Titanium alloy

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