抄録
X-ray microtomography technique was used to observe hydrogen-induced strain localization, nano void formation and brittle fracture behaviour in a model Al-Zn-Mg ternary alloy. The alloy exhibited remarkable hydrogen embrittlement during an ordinary tensile test due to hydrogen uptake during its electro discharge machining. Very sharp cracks of about 1-2 m in CTOD were initiated and propagated after characteristic intense strain localization is observed, which we measured in a series of tomographic volumes by tracking tens of thousands of microstructural features. It is noteworthy that hydrostatic expansion was observed where the strain localisation was observed. This expansion was attributable to the formation of high density nano voids by utilizing the ultra-high magnification X-ray microscopy at a synchrotron radiation facility combined with STEM-HAADF observation.
| 元の言語 | 英語 |
|---|---|
| ページ | 728-729 |
| ページ数 | 2 |
| 出版物ステータス | 出版済み - 1 1 2017 |
| イベント | 14th International Conference on Fracture, ICF 2017 - Rhodes, ギリシャ 継続期間: 6 18 2017 → 6 20 2017 |
会議
| 会議 | 14th International Conference on Fracture, ICF 2017 |
|---|---|
| 国 | ギリシャ |
| 市 | Rhodes |
| 期間 | 6/18/17 → 6/20/17 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Building and Construction
これを引用
4D hydrogen embrittlement behaviour in high strength aluminium alloy. / Toda, Hiroyuki; Shimizu, K.; Gao, H.; Hirayama, K.
2017. 728-729 論文発表場所 14th International Conference on Fracture, ICF 2017, Rhodes, ギリシャ.研究成果: 会議への寄与タイプ › 論文
}
TY - CONF
T1 - 4D hydrogen embrittlement behaviour in high strength aluminium alloy
AU - Toda, Hiroyuki
AU - Shimizu, K.
AU - Gao, H.
AU - Hirayama, K.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - X-ray microtomography technique was used to observe hydrogen-induced strain localization, nano void formation and brittle fracture behaviour in a model Al-Zn-Mg ternary alloy. The alloy exhibited remarkable hydrogen embrittlement during an ordinary tensile test due to hydrogen uptake during its electro discharge machining. Very sharp cracks of about 1-2 m in CTOD were initiated and propagated after characteristic intense strain localization is observed, which we measured in a series of tomographic volumes by tracking tens of thousands of microstructural features. It is noteworthy that hydrostatic expansion was observed where the strain localisation was observed. This expansion was attributable to the formation of high density nano voids by utilizing the ultra-high magnification X-ray microscopy at a synchrotron radiation facility combined with STEM-HAADF observation.
AB - X-ray microtomography technique was used to observe hydrogen-induced strain localization, nano void formation and brittle fracture behaviour in a model Al-Zn-Mg ternary alloy. The alloy exhibited remarkable hydrogen embrittlement during an ordinary tensile test due to hydrogen uptake during its electro discharge machining. Very sharp cracks of about 1-2 m in CTOD were initiated and propagated after characteristic intense strain localization is observed, which we measured in a series of tomographic volumes by tracking tens of thousands of microstructural features. It is noteworthy that hydrostatic expansion was observed where the strain localisation was observed. This expansion was attributable to the formation of high density nano voids by utilizing the ultra-high magnification X-ray microscopy at a synchrotron radiation facility combined with STEM-HAADF observation.
UR - http://www.scopus.com/inward/record.url?scp=85066022820&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066022820&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:85066022820
SP - 728
EP - 729
ER -