Distinct fatigue crack propagation limit of new precipitation-hardened aluminium alloy

Takahiro Shikama; Yoshimasa Takahashi; Lei Zeng; Shinji Yoshihara; Tadashi Aiura; Kenji Higashida; Hiroshi Noguchi

doi:10.1016/j.scriptamat.2012.03.018

Distinct fatigue crack propagation limit of new precipitation-hardened aluminium alloy

Takahiro Shikama
, Yoshimasa Takahashi
, Lei Zeng
, Shinji Yoshihara
, Tadashi Aiura
, Kenji Higashida
, Hiroshi Noguchi

Strength of materials

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

New aluminium alloys were developed by adding excess Mg to the ordinary precipitation-hardened aluminium alloy, JIS 6061-T6. By analyzing the results of the fatigue tests and the coaxing effect test, the existence of a distinct fatigue crack propagation limit in these new aluminium alloys was confirmed using a small-holed specimen. Moreover, by comparing the fatigue process with that of the 6061 alloy, the possibility of generating the fatigue limit in face-centred cubic metals, which has been considered to be absent, was discussed.

Original language	English
Pages (from-to)	49-52
Number of pages	4
Journal	Scripta Materialia
Volume	67
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2012.03.018
Publication status	Published - Jul 2012

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2012.03.018

Cite this

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AU - Shikama, Takahiro

AU - Takahashi, Yoshimasa

AU - Zeng, Lei

AU - Yoshihara, Shinji

AU - Aiura, Tadashi

AU - Higashida, Kenji

AU - Noguchi, Hiroshi

PY - 2012/7

Y1 - 2012/7

N2 - New aluminium alloys were developed by adding excess Mg to the ordinary precipitation-hardened aluminium alloy, JIS 6061-T6. By analyzing the results of the fatigue tests and the coaxing effect test, the existence of a distinct fatigue crack propagation limit in these new aluminium alloys was confirmed using a small-holed specimen. Moreover, by comparing the fatigue process with that of the 6061 alloy, the possibility of generating the fatigue limit in face-centred cubic metals, which has been considered to be absent, was discussed.

AB - New aluminium alloys were developed by adding excess Mg to the ordinary precipitation-hardened aluminium alloy, JIS 6061-T6. By analyzing the results of the fatigue tests and the coaxing effect test, the existence of a distinct fatigue crack propagation limit in these new aluminium alloys was confirmed using a small-holed specimen. Moreover, by comparing the fatigue process with that of the 6061 alloy, the possibility of generating the fatigue limit in face-centred cubic metals, which has been considered to be absent, was discussed.

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Distinct fatigue crack propagation limit of new precipitation-hardened aluminium alloy

Abstract

All Science Journal Classification (ASJC) codes

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