Role of eutectic silicon particles in fatigue crack initiation and propagation and fatigue strength characteristics of cast aluminum alloy A356

Lei Zeng, Junji Sakamoto, Atsushi Fujii, Hiroshi Noguchi

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The cast aluminum alloy A356 was studied to observe the effects of the eutectic silicon particles on its fatigue strength characteristics and the initiation and propagation of fatigue cracks. Two mechanisms of the initiation of the fatigue cracks were observed in the low-cycle fatigue regime, and only one in the high-cycle fatigue regime. A small fatigue life scatter was also found to be characteristics of the specimens of the alloys. Furthermore, the existence of a fatigue limit in the alloy is discussed.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalEngineering Fracture Mechanics
Volume115
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes

Fingerprint

Silicon
Crack initiation
Eutectics
Aluminum alloys
Crack propagation
Fatigue of materials
Fatigue cracks
Fatigue strength

Keywords

  • Aluminum alloys
  • Crack arrest
  • Crack growth
  • Crack initiation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Role of eutectic silicon particles in fatigue crack initiation and propagation and fatigue strength characteristics of cast aluminum alloy A356. / Zeng, Lei; Sakamoto, Junji; Fujii, Atsushi; Noguchi, Hiroshi.

In: Engineering Fracture Mechanics, Vol. 115, 01.01.2014, p. 1-12.

Research output: Contribution to journalArticle

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