Analysis for non-metal inclusions and precipitates leading to the optimal steel-properties and processes

Katsumi Yamada, Ryo Inoue

Research output: Contribution to journalReview articlepeer-review

4 Citations (Scopus)


Metallic materials as represented by steels mostly contain various precipitates such as nitrides, carbides and inter-metallic compounds in addition to non-metallic inclusions, oxides and sulfides. These are present as an inevitable former or by design. Those varieties, size and distribution types are very wide then one of important structural factors that affects on various properties of materials. Therefore, accurate analysis of them is considerable significance to control target properties of materials reproducibly. In the steel research field, study of analytical methods for inclusion in steels has been actively conducting since 1960's. Especially in chemical analysis method, systematization and standardization like JIS has been promoted by corroborated researches in an ISIJ. Previously established methods and detail of analysis of chemical states have been described in publications edited by ISIJ and comprehensive review paper has been issued by Takayama. In this short article, direct observation methods with microscopy, rapid analysis categorized as instrumental analyses, non-destructive inspections and extraction method for non-metallic inclusions are briefly reviewed.

Original languageEnglish
Pages (from-to)867-872
Number of pages6
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Issue number7
Publication statusPublished - 2014


  • Extraction method
  • Instrumental analysis
  • Non-destructive inspection
  • Non-metallic inclusion; microscopy
  • Rapid analysis

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'Analysis for non-metal inclusions and precipitates leading to the optimal steel-properties and processes'. Together they form a unique fingerprint.

Cite this