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Brittle failure of Alloy 693 at elevated temperatures

Authors
Journal
Materials Science and Engineering A
0921-5093
Publisher
Elsevier
Publication Date
Volume
616
Identifiers
DOI: 10.1016/j.msea.2014.08.015
Keywords
  • Alloy 693
  • γ′ Precipitates
  • Continuous Cooling Transformation (Cct) Diagram
  • High Temperature Deformation
  • Brittle Failure

Abstract

Abstract This reports transgranular brittle failure during high temperature deformation of a wrought Alloy 693 received in solution annealed condition. This has been attributed to the inability to suppress the formation of γ′ precipitates during quenching after the solution annealing treatment. The fine γ′ precipitates severely strained the matrix and inhibited plasticity during subsequent deformation.

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