Transmission Electron Microscope Observations of SUS304L Stainless Steel Heat Affected Zone

Takeshi Kuwana, Hiroyuki Kokawa

Research output: Contribution to journalArticle

Abstract

The micro-structure distribution of SUS304L stainless steel heat affected zone was investigated by transmission electron microscopy. The results are as follows: (1) Small ferrite phases were observed at sub-boundaries near the fusion boundary in the coarse grained region by transmission electron microscopy, which were not recognized by optical microscopy. (2) The degree of recovery in the dislocation structure became lower in the heat affected zone with the distance from the fusion boundary. (3) No grain boundary precipitations were observed in the grain boundary etched region by transmission electron microscopy. (4) The Vickers hardness distribution can be explained by the distribution of grain size and dislocation density.

Original languageEnglish
Pages (from-to)981-988
Number of pages8
JournalJOURNAL OF THE JAPAN WELDING SOCIETY
Volume51
Issue number12
DOIs
Publication statusPublished - 1982 Jan

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces, Coatings and Films
  • Metals and Alloys

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