Influence of carbides on the strength and toughness of a niobium alloy

Rengen Ding, Ian Jones

Research output: Contribution to journalArticle

9 Citations (Scopus)


The mechanical behaviour of Nb35Ti6Al5Cr8V (at.-%) containing different C contents (0, 1 and 10 at.-%) has been investigated. The addition of 1 at.-% C does not increase the strength at room or high temperature, whereas adding 10 at.-% C improves significantly the strength at both room and high temperature. Adding 1 at.-% C slightly increases the fracture toughness; aging the same alloy for 9 days also results in a slight improvement in the toughness. A 10 at.-% C addition, however, leads to a dramatic decrease in the toughness. The variation in the toughness is linearly related to the proportion of cleavage as modified by the carbide.
Original languageEnglish
Pages (from-to)323-332
Number of pages10
JournalMaterials Science and Technology
Issue number3
Publication statusPublished - 1 Mar 2010


  • Strength
  • Carbon
  • Nb-Ti-Al alloy
  • Fracture toughness


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