Study on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size)
A6061-T6 alloy has been used in the liner material of high-pressure hydrogen gas storage container that is mounted on a fuel cell vehicle. The degradation of the properties such as strength, toughness and hydrogen embrittlement resistance, etc., has been pointed out, because the grain structure of t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2014-10-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/80/818/80_2014smm0292/_pdf/-char/en |
| _version_ | 1798019075619684352 |
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| author | Satoshi IWATA Masanori TAKUMA Kenichi SAITOU Junki MATSUI Yoshimasa TAKAHASHI Yuto TSUZUKI |
| author_facet | Satoshi IWATA Masanori TAKUMA Kenichi SAITOU Junki MATSUI Yoshimasa TAKAHASHI Yuto TSUZUKI |
| author_sort | Satoshi IWATA |
| collection | DOAJ |
| description | A6061-T6 alloy has been used in the liner material of high-pressure hydrogen gas storage container that is mounted on a fuel cell vehicle. The degradation of the properties such as strength, toughness and hydrogen embrittlement resistance, etc., has been pointed out, because the grain structure of the mouthpiece part of the liner becomes coarse in the manufacturing process. The tensile and fatigue test for the specimens with different grain size were done, and the detected AE signals during the testing were analyzed. In the tensile test, the characteristics of the signals on dislocation motion, transgranular and intergranular fracture were extracted. In the fatigue test, it was shown that the possibility of which the damage is evaluated by the spectral analysis that utilizes the slope of an approximation straight line in the both logarithmic scale display of FFT analysis result. Then we proposed the amplitude ratio Rv that is the parameter which divided the maximum amplitude of signal for intergranular fracture by that of detected signal, and the correlation between the grain size and the Rv was recognized. These proposed information are able to be utilized in order to evaluate the damage of the container. |
| first_indexed | 2024-04-11T16:34:39Z |
| format | Article |
| id | doaj.art-52a08907ef0a43408eecade57f99e1b1 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T16:34:39Z |
| publishDate | 2014-10-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-52a08907ef0a43408eecade57f99e1b12022-12-22T04:13:52ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-10-0180818SMM0292SMM029210.1299/transjsme.2014smm0292transjsmeStudy on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size)Satoshi IWATA0Masanori TAKUMA1Kenichi SAITOU2Junki MATSUI3Yoshimasa TAKAHASHI4Yuto TSUZUKI5Graduate School of Kansai Univ.Kansai Univ. Dept. of Mechanical EngineeringKansai Univ. Dept. of Mechanical EngineeringGraduate School of Kansai Univ.Kansai Univ. Dept. of Mechanical EngineeringGraduate School of Kansai Univ.A6061-T6 alloy has been used in the liner material of high-pressure hydrogen gas storage container that is mounted on a fuel cell vehicle. The degradation of the properties such as strength, toughness and hydrogen embrittlement resistance, etc., has been pointed out, because the grain structure of the mouthpiece part of the liner becomes coarse in the manufacturing process. The tensile and fatigue test for the specimens with different grain size were done, and the detected AE signals during the testing were analyzed. In the tensile test, the characteristics of the signals on dislocation motion, transgranular and intergranular fracture were extracted. In the fatigue test, it was shown that the possibility of which the damage is evaluated by the spectral analysis that utilizes the slope of an approximation straight line in the both logarithmic scale display of FFT analysis result. Then we proposed the amplitude ratio Rv that is the parameter which divided the maximum amplitude of signal for intergranular fracture by that of detected signal, and the correlation between the grain size and the Rv was recognized. These proposed information are able to be utilized in order to evaluate the damage of the container.https://www.jstage.jst.go.jp/article/transjsme/80/818/80_2014smm0292/_pdf/-char/enacoustic emissionaluminum alloygrain sizefracturefatiguenondestructive evaluation |
| spellingShingle | Satoshi IWATA Masanori TAKUMA Kenichi SAITOU Junki MATSUI Yoshimasa TAKAHASHI Yuto TSUZUKI Study on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size) Nihon Kikai Gakkai ronbunshu acoustic emission aluminum alloy grain size fracture fatigue nondestructive evaluation |
| title | Study on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size) |
| title_full | Study on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size) |
| title_fullStr | Study on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size) |
| title_full_unstemmed | Study on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size) |
| title_short | Study on AE properties of A6061-T6 alloy for high-pressure hydrogen gas container during tensile and fatigue testing (Influence of grain size) |
| title_sort | study on ae properties of a6061 t6 alloy for high pressure hydrogen gas container during tensile and fatigue testing influence of grain size |
| topic | acoustic emission aluminum alloy grain size fracture fatigue nondestructive evaluation |
| url | https://www.jstage.jst.go.jp/article/transjsme/80/818/80_2014smm0292/_pdf/-char/en |
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