Reduced-Order Models Correlating Ti Beta 21S Microstructures and Vickers Hardness Measurements

  • Mostafa Mahdavi School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
  • Mike Standish School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
  • Almambet Iskakov George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
  • Hamid Garmestani School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
  • Surya R. Kalidindi George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
Keywords: Vickers hardness, Ti Beta 21S alloy, thermal treatments, structure-property linkage

Abstract

Ti Beta 21S alloy is a metastable Ti Beta alloy commonly used in the aerospace industry, especially in jet engines. Components made from this alloy are usually subjected to varied thermal histories during service, which leads to significant changes in their microstructures and associated mechanical properties. The central goal of this study is to demonstrate the feasibility of correlating the optical images of the microstructure obtained from heat-treated samples of Ti Beta 21S to their respective Vickers hardness measurements using recently established analyses and statistical quantification approaches based on the principal components of the rotationally invariant 2-point spatial correlations.  The correlations extracted in this work can be used for non-destructive diagnostics of in-service components.

Published
2020-12-18
How to Cite
1.
Mahdavi M, Standish M, Iskakov A, Garmestani H, Kalidindi SR. Reduced-Order Models Correlating Ti Beta 21S Microstructures and Vickers Hardness Measurements. Materials Genome Engineering [Internet]. 2020Dec.18 [cited 2021Jan.17];1(1):1-11. Available from: http://ojs.wiserpub.com/index.php/MGE/article/view/590