Al-10Mg 合金における応力腐食割れ挙動に及ぼす水素の影響

Translated title of the contribution: Influence of hydrogen on stress corrosion cracking behavior in Al-10Mg alloy

Kyosuke Hirayama, Hiroyuki Toda, Kazuyuki Shimizu, Kentaro Uesugi, Akihisa Takeuchi, Ryohei Masunaga

Research output: Contribution to journalArticle

Abstract

It is known that the susceptibility to stress corrosion cracking of Al-Mg alloy increase with increasing Mg content, whereas the strength of Al-10Mg alloy reach to that of 2000 and 7000 series Al alloys. In-situ observation of the stress corrosion cracking of a hydrogen charged Al-10Mg alloy was conducted by using synchrotron X-ray mi-crotomography in SPring-8. The corrosion area and crack were observed in hydrogen charged material with water atmosphere. The corrosion and crack grow up with increasing applied strain. In addition, deformation localization and high hydrostatic strain that was caused by nucleation of nanovoids during deformation was also observed in crack tip. These observations indicated that the stress corrosion cracking of an Al-10Mg alloy occurs due to the influence of hydrogen.

Original languageJapanese
Pages (from-to)223-227
Number of pages5
JournalKeikinzoku/Journal of Japan Institute of Light Metals
Volume69
Issue number4
DOIs
Publication statusPublished - Jan 1 2019

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Stress corrosion cracking
Hydrogen
Corrosion
Cracks
Synchrotrons
Crack tips
Nucleation
X rays
Water

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Al-10Mg 合金における応力腐食割れ挙動に及ぼす水素の影響. / Hirayama, Kyosuke; Toda, Hiroyuki; Shimizu, Kazuyuki; Uesugi, Kentaro; Takeuchi, Akihisa; Masunaga, Ryohei.

In: Keikinzoku/Journal of Japan Institute of Light Metals, Vol. 69, No. 4, 01.01.2019, p. 223-227.

Research output: Contribution to journalArticle

Hirayama, Kyosuke ; Toda, Hiroyuki ; Shimizu, Kazuyuki ; Uesugi, Kentaro ; Takeuchi, Akihisa ; Masunaga, Ryohei. / Al-10Mg 合金における応力腐食割れ挙動に及ぼす水素の影響. In: Keikinzoku/Journal of Japan Institute of Light Metals. 2019 ; Vol. 69, No. 4. pp. 223-227.
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