Effect of titanium carbide inclusions on morphology of low-carbon steel martensite

H. A. Phama, T. Ohba, S. Morito, T. Hayashi, T. Furuhara, G. Miyamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The effect of titanium carbide (TiC) on morphology of low-carbon steel martensite was studied by means of electron backscatter diffraction (EBSD). The nucleation and growth of new morphology subunits such as packet, block and sub-block are observed in the area surrounding of micron-sized TiC particles. The misorientation from a fitted orientation relationship between martensite and austenite near TiC particle is larger than the average misorientation with a localized characteristic. The position of new morphology subunits has a well correspondence with the area in vicinity of TiC particle, which has large misorientation. The micron-sized TiC particle plays a role of stress concentrator in austenite during martensitic transformation which suppresses growth of one martensite variant while stimulates nucleation and growth of another one.

Original languageEnglish
Title of host publicationEuropean Symposium on Martensitic Transformations, ESOMAT 2012
EditorsSergey Prokoshkin, Natalia Resnina
PublisherTrans Tech Publications Ltd
Pages25-30
Number of pages6
ISBN (Print)9783037856109
DOIs
Publication statusPublished - 2013
Event9th European Symposium on Martensitic Transformations, ESOMAT 2012 - Saint-Petersburg, Russian Federation
Duration: 2012 Sep 92012 Sep 16

Publication series

NameMaterials Science Forum
Volume738-739
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other9th European Symposium on Martensitic Transformations, ESOMAT 2012
CountryRussian Federation
CitySaint-Petersburg
Period12/9/912/9/16

Keywords

  • Lath martensite
  • Misorientation distribution
  • Morphology
  • TiC
  • Variant map

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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