Low- and high-cycle fatigue properties of ultrafine-grained low carbon steels

Tatsuaki Sawai, Saburo Matsuoka, Kaneaki Tsuzaki

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

It has been well known that fatigue properties of steels are improved by grain refinement. In the STX-21 project, we have been developing low carbon steels with sub-micron meter grain sizes and reported that their tensile strength is 800 MPa and DBTT is around 77K. In this report, low- and high-cycle fatigue properties of ultrafine-grained steels with different grain diameters of 0.7 and 0.9 μm and different carbon contents of 0.05 and 0.15 mass% were investigated. The grain refinement improved high-cycle fatigue properties, whereas it did not affect low-cycle fatigue properties. Fatigue limit showed the similar Hall-Petch type relationship for several studies carried out hitherto.

Original languageEnglish
Pages (from-to)726-733
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume89
Issue number6
DOIs
Publication statusPublished - Jan 1 2003
Externally publishedYes

Fingerprint

low carbon steels
Low carbon steel
Fatigue of materials
cycles
Steel
Grain refinement
steels
tensile strength
grain size
Tensile strength
Carbon
Ultrafine
carbon

All Science Journal Classification (ASJC) codes

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

Cite this

Low- and high-cycle fatigue properties of ultrafine-grained low carbon steels. / Sawai, Tatsuaki; Matsuoka, Saburo; Tsuzaki, Kaneaki.

In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 89, No. 6, 01.01.2003, p. 726-733.

Research output: Contribution to journalArticle

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