WEKO3
アイテム
{"_buckets": {"deposit": "1c6a4e26-135c-46d6-a28b-919369c08aeb"}, "_deposit": {"created_by": 1, "id": "79622", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "79622"}, "status": "published"}, "_oai": {"id": "oai:repo.qst.go.jp:00079622", "sets": ["1"]}, "author_link": ["999866", "999870", "999863", "999865", "999864", "999861", "999872", "999868", "999871", "999862", "999869", "999867"], "item_8_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2019-11", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "11", "bibliographicPageStart": "1192", "bibliographicVolumeNumber": "9", "bibliographic_titles": [{"bibliographic_title": "Metals"}]}]}, "item_8_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The purpose of the present study was to verify the effectiveness of dry laser peening (DryLP), which is the peening technique without a sacrificial overlay under atmospheric conditions using femtosecond laser pulses on the mechanical properties such as hardness, residual stress, and fatigue performance of laser-welded 2024 aluminum alloy containing welding defects such as undercuts and blowholes. After DryLP treatment of the laser-welded 2024 aluminum alloy, the softened weld metal recovered to the original hardness of base metal, while residual tensile stress in the weld metal and heat-affected zone changed to compressive stresses. As a result, DryLP treatment improved the fatigue performances of welded specimens with and without the weld reinforcement almost equally. The fatigue life almost doubled at a stress amplitude of 180 MPa and increased by a factor of more than 50 at 120 MPa. DryLP was found to be more effective for improving the fatigue performance of laser-welded aluminum specimens with welding defects at lower stress amplitudes, as stress concentration at the defects did not significantly influence the fatigue performance.", "subitem_description_type": "Abstract"}]}, "item_8_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "MDPI "}]}, "item_8_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.3390/met9111192", "subitem_relation_type_select": "DOI"}}]}, "item_8_relation_17": {"attribute_name": "関連サイト", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.3390/met9111192", "subitem_relation_type_select": "DOI"}}]}, "item_8_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2075-4701", "subitem_source_identifier_type": "ISSN"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "metadata only access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_14cb"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Sano, Tomokazu"}], "nameIdentifiers": [{"nameIdentifier": "999861", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Eimura, Takayuki"}], "nameIdentifiers": [{"nameIdentifier": "999862", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hirose, Akio"}], "nameIdentifiers": [{"nameIdentifier": "999863", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kawahito, Yosuke"}], "nameIdentifiers": [{"nameIdentifier": "999864", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Katayama , Seiji"}], "nameIdentifiers": [{"nameIdentifier": "999865", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Arakawa, Kazuto"}], "nameIdentifiers": [{"nameIdentifier": "999866", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Masaki, Kiyotaka"}], "nameIdentifiers": [{"nameIdentifier": "999867", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shiro, Ayumi"}], "nameIdentifiers": [{"nameIdentifier": "999868", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shobu , Takahisa"}], "nameIdentifiers": [{"nameIdentifier": "999869", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sano, Yuji"}], "nameIdentifiers": [{"nameIdentifier": "999870", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ayumi, Shiro", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "999871", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Takahisa, Shobu", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "999872", "nameIdentifierScheme": "WEKO"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Improving Fatigue Performance of Laser-Welded 2024-T3 Aluminum Alloy Using Dry Laser Peening", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Improving Fatigue Performance of Laser-Welded 2024-T3 Aluminum Alloy Using Dry Laser Peening"}]}, "item_type_id": "8", "owner": "1", "path": ["1"], "permalink_uri": "https://repo.qst.go.jp/records/79622", "pubdate": {"attribute_name": "公開日", "attribute_value": "2020-03-23"}, "publish_date": "2020-03-23", "publish_status": "0", "recid": "79622", "relation": {}, "relation_version_is_last": true, "title": ["Improving Fatigue Performance of Laser-Welded 2024-T3 Aluminum Alloy Using Dry Laser Peening"], "weko_shared_id": -1}
Improving Fatigue Performance of Laser-Welded 2024-T3 Aluminum Alloy Using Dry Laser Peening
https://repo.qst.go.jp/records/79622
https://repo.qst.go.jp/records/796221b10a68a-205f-4f38-b671-d3a75fe375ea
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2020-03-23 | |||||
タイトル | ||||||
タイトル | Improving Fatigue Performance of Laser-Welded 2024-T3 Aluminum Alloy Using Dry Laser Peening | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sano, Tomokazu
× Sano, Tomokazu× Eimura, Takayuki× Hirose, Akio× Kawahito, Yosuke× Katayama , Seiji× Arakawa, Kazuto× Masaki, Kiyotaka× Shiro, Ayumi× Shobu , Takahisa× Sano, Yuji× Ayumi, Shiro× Takahisa, Shobu |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The purpose of the present study was to verify the effectiveness of dry laser peening (DryLP), which is the peening technique without a sacrificial overlay under atmospheric conditions using femtosecond laser pulses on the mechanical properties such as hardness, residual stress, and fatigue performance of laser-welded 2024 aluminum alloy containing welding defects such as undercuts and blowholes. After DryLP treatment of the laser-welded 2024 aluminum alloy, the softened weld metal recovered to the original hardness of base metal, while residual tensile stress in the weld metal and heat-affected zone changed to compressive stresses. As a result, DryLP treatment improved the fatigue performances of welded specimens with and without the weld reinforcement almost equally. The fatigue life almost doubled at a stress amplitude of 180 MPa and increased by a factor of more than 50 at 120 MPa. DryLP was found to be more effective for improving the fatigue performance of laser-welded aluminum specimens with welding defects at lower stress amplitudes, as stress concentration at the defects did not significantly influence the fatigue performance. | |||||
書誌情報 |
Metals 巻 9, 号 11, p. 1192, 発行日 2019-11 |
|||||
出版者 | ||||||
出版者 | MDPI | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2075-4701 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/met9111192 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3390/met9111192 |