AP-FIM analysis of ultrafine carbonitrides in fire-resistant steel for building construction

Ryuji Uemori, Hiroshi Tamehiro, Rikio Chijiiwa

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The atom-probe field-ion microscope (AP-FIM) can be used to observe materials at an atomic level and analyze their individual atoms. This report presents an application in which the AP-FIM was used to clarify the role of the combined addition of niobium and molybderum in improving the high-temperature strength of fire-resistant steel for building construction. Findings obtained about the composition of ultrafine carbonitrides, which could not be analyzed by conventional electron microscopy, and about the elemental distribution of the carbonitride/ferrite matrix interface are briefly introduced.

Original languageEnglish
Pages (from-to)23-28
Number of pages6
JournalNippon Steel Technical Report
Issue number69
Publication statusPublished - Apr 1 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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