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

doi:10.1016/j.engfracmech.2013.11.016

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 journal › Article › peer-review

34 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 language	English
Pages (from-to)	1-12
Number of pages	12
Journal	Engineering Fracture Mechanics
Volume	115
DOIs	https://doi.org/10.1016/j.engfracmech.2013.11.016
Publication status	Published - Jan 2014
Externally published	Yes

Keywords

Aluminum alloys
Crack arrest
Crack growth
Crack initiation

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2013.11.016

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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.",

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AU - Zeng, Lei

AU - Sakamoto, Junji

AU - Fujii, Atsushi

AU - Noguchi, Hiroshi

PY - 2014/1

Y1 - 2014/1

N2 - 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.

AB - 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.

KW - Aluminum alloys

KW - Crack arrest

KW - Crack growth

KW - Crack initiation

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JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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