Evaluation of microstructure and mechanical properties of liquid phase diffusion bonded ODS steels

Sanghoon Noh, Ryuta Kasada, Naoko Oono, Noriyuki Iwata, Akihiko Kimura

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Transient liquid phase bonding(TLPB) was employed to join ODS ferritic steel blocks using an amorphous inset material based on Fe-3B-5Si composition with high vacuum uni-axial hot press. The microstructure and mechanical properties were investigated. The TLPB ODS steel showed rather homogeneous distribution of the insert material elements at joined region, while Y-Ti-O precipitation and grain growth up to 20 μm occurred at the region. The TLPB ODS steel had a fairly good tensile strength, which was up to 90% of base material, at temperatures from room temperature to 700 °C. However, it showed poor elongation and impact fracture energy compared to base material, which is considered to be due to the existence of Y-Ti-O precipitate at bonding interface and large grained insert material.

Original languageEnglish
Pages (from-to)1033-1037
Number of pages5
JournalFusion Engineering and Design
Volume85
Issue number7-9
DOIs
Publication statusPublished - 2010 Jan 1
Externally publishedYes

Keywords

  • Oxide dispersion strengthened steel
  • Transient liquid phase bonding

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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