Oxidation behaviour of a developmental nickel-based alloy and the role of minor elements

Mary Taylor, Rengen Ding, Paul M. Mignanelli, Mark Hardy

Research output: Contribution to journalArticlepeer-review

11 Downloads (Pure)

Abstract

The oxidation kinetics of a chromia forming development nickel-based superalloy over the temperature range of 700 to 850 °C under isothermal and 100 h thermal cycles are presented. The kinetics compare favourably with similar alloys and this is attributed to the formation of (Ti,Nb,Ta)(N,C,B) precipitates throughout the alloy. Between 840 and 850 °C a significant increase in the oxidation kinetics was observed; attributed to the dissolution of the precipitate phases, releasing titanium, tantalum and niobium into the alloy matrix. The results are discussed in terms of potential effect of the presence of (N,C,B) phases and stability on the oxidation kinetics.
Original languageEnglish
Article number110002
Number of pages10
JournalCorrosion Science
Volume196
Early online date5 Dec 2021
DOIs
Publication statusPublished - Mar 2022

Keywords

  • Oxidation
  • Nickel-based alloy
  • Minor elements

Fingerprint

Dive into the research topics of 'Oxidation behaviour of a developmental nickel-based alloy and the role of minor elements'. Together they form a unique fingerprint.

Cite this