Inhibition of grain coarsening in nanocrystalline Fe-C alloys by interaction between carbon and grain boundaries

Yu Zeng Chen, A. Herz, Christine Borchers, X. H. Shi, X. Y. Ma, F. Liu, Reiner Kirchheim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Nanocrystalline Fe-1.77at.%C and Fe-3.27at.%C alloys prepared by ball milling iron powders and graphite powders are annealed below 573K where the precipitation of Fe3C does not occur. Upon annealing, a significant grain coarsening is observed in Fe-1.77at.%C alloy, whereas the grain coarsening is inhibited in Fe-3.27at.%C alloy. Within the framework of thermodynamic theories, the inhibition of grain coarsening in nanocrystalline Fe-C alloys is discussed. It is demonstrated that the inhibition of grain coarsening in the nanocrystalline Fe-C alloys can be ascribed to a vanished driving force for grain growth which is caused by the interaction between carbon and the grain boundaries of nano-grains.

Original languageEnglish
Title of host publicationMaterial Science, Manufacturing Technology and Advanced Design Technology
PublisherTrans Tech Publications
Pages184-188
Number of pages5
ISBN (Print)9783038350460
DOIs
StatePublished - 2014
Event3rd International Conference on Materials Science and Manufacturing, ICMSM 2014 - Yichang, China
Duration: 10 Jan 201412 Jan 2014

Publication series

NameAdvanced Materials Research
Volume904
ISSN (Print)1022-6680

Conference

Conference3rd International Conference on Materials Science and Manufacturing, ICMSM 2014
Country/TerritoryChina
CityYichang
Period10/01/1412/01/14

Keywords

  • Alloys
  • Annealing
  • Grain boundary
  • Grain growth
  • Nanostructured materials

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