Growth behavior of microstructurally short cracks in the 6061 aluminum alloy with and without 22 Vol Pet SiCwhiskers

Hiroyuki Toda, Toshiro Kobayashi

研究成果: ジャーナルへの寄稿記事

14 引用 (Scopus)

抄録

Short crack growth behavior of the 6061 Al alloy with and without SiC whiskers was investigated. Fluctuations in the growth rate of short cracks converge with growth of the cracks and become substantially constant between 25 and 40 μm in the metal matrix composite (MMC) and 110 and 183 μm in the unreinforced alloy. This is attributed to the release of the short cracks from the microstructural effects, i.e., the interaction with reinforcement structure in the MMC and grain boundaries in the unreinforced alloy. Furthermore, there exists slowing down of short crack advance in the MMC, and this was explained from rapid development of crack closure obtained in this study.

元の言語英語
ページ(範囲)2013-2021
ページ数9
ジャーナルMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
27
発行部数7
DOI
出版物ステータス出版済み - 1 1 1996

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short cracks
aluminum alloys
metal matrix composites
Aluminum alloys
Cracks
Metals
reinforcement (structures)
Composite materials
crack closure
Crack closure
Crack propagation
Reinforcement
Grain boundaries
cracks
grain boundaries
interactions

All Science Journal Classification (ASJC) codes

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

これを引用

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abstract = "Short crack growth behavior of the 6061 Al alloy with and without SiC whiskers was investigated. Fluctuations in the growth rate of short cracks converge with growth of the cracks and become substantially constant between 25 and 40 μm in the metal matrix composite (MMC) and 110 and 183 μm in the unreinforced alloy. This is attributed to the release of the short cracks from the microstructural effects, i.e., the interaction with reinforcement structure in the MMC and grain boundaries in the unreinforced alloy. Furthermore, there exists slowing down of short crack advance in the MMC, and this was explained from rapid development of crack closure obtained in this study.",
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T1 - Growth behavior of microstructurally short cracks in the 6061 aluminum alloy with and without 22 Vol Pet SiCwhiskers

AU - Toda, Hiroyuki

AU - Kobayashi, Toshiro

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Y1 - 1996/1/1

N2 - Short crack growth behavior of the 6061 Al alloy with and without SiC whiskers was investigated. Fluctuations in the growth rate of short cracks converge with growth of the cracks and become substantially constant between 25 and 40 μm in the metal matrix composite (MMC) and 110 and 183 μm in the unreinforced alloy. This is attributed to the release of the short cracks from the microstructural effects, i.e., the interaction with reinforcement structure in the MMC and grain boundaries in the unreinforced alloy. Furthermore, there exists slowing down of short crack advance in the MMC, and this was explained from rapid development of crack closure obtained in this study.

AB - Short crack growth behavior of the 6061 Al alloy with and without SiC whiskers was investigated. Fluctuations in the growth rate of short cracks converge with growth of the cracks and become substantially constant between 25 and 40 μm in the metal matrix composite (MMC) and 110 and 183 μm in the unreinforced alloy. This is attributed to the release of the short cracks from the microstructural effects, i.e., the interaction with reinforcement structure in the MMC and grain boundaries in the unreinforced alloy. Furthermore, there exists slowing down of short crack advance in the MMC, and this was explained from rapid development of crack closure obtained in this study.

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