AP-FIM study of ultra-fine precipitates at the peak hardening stage in a tempered Fe-Mo-C alloy

Ryuji Uemori, Mitsuru Tanino

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Morphology and chemical compositions of the precipitates formed at the peak stage of secondary hardening in an Fe-Mo-C alloy were examined by atom probe field ion microscopy (AP-FIM). AP-FIM analysis has confirmed the existence of not only needle-like Mo2C precipitates along the 〈100〉α-Fe directions but also plate-like precipitates lying parallel to the {100}α-Fe planes. The latter were deduced to be clusters of Mo and a small fraction of Fe atoms that contain neither C nor N. These Mo-rich clusters are finer and more densely distributed than Mo2C. Thus, its presence may contribute to the secondary hardening of Mo steels.

Original languageEnglish
Pages (from-to)141-150
Number of pages10
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume55
Issue number2
DOIs
Publication statusPublished - Jan 1 1991
Externally publishedYes

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hardening
Hardening
Precipitates
precipitates
Microscopic examination
Ions
microscopy
Atoms
probes
atoms
ions
Steel
needles
Needles
chemical composition
steels
Chemical analysis
Direction compound

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

AP-FIM study of ultra-fine precipitates at the peak hardening stage in a tempered Fe-Mo-C alloy. / Uemori, Ryuji; Tanino, Mitsuru.

In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, Vol. 55, No. 2, 01.01.1991, p. 141-150.

Research output: Contribution to journalArticle

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