{"created":"2023-07-25T09:05:07.292729+00:00","id":3113,"links":{},"metadata":{"_buckets":{"deposit":"999b666a-c424-4c22-ac03-fee303dd4f09"},"_deposit":{"created_by":3,"id":"3113","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"3113"},"status":"published"},"_oai":{"id":"oai:toyama.repo.nii.ac.jp:00003113","sets":["496:556:557:558"]},"author_link":["10173","10392","10174","10385","10388","10389"],"item_2_alternative_title_19":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Fatigue Behavior of AZ31 Extruded Magnesium Alloy in Laboratory Air"}]},"item_2_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"696","bibliographicPageEnd":"1152","bibliographicPageStart":"1146","bibliographicVolumeNumber":"70","bibliographic_titles":[{"bibliographic_title":"日本機械学會論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A"}]}]},"item_2_description_15":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_2_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Rotating bending fatigue test was carried out using AZ31 extruded magnesium alloy in order to clarify the S-N curve, crack initiation and propagation behavior of the alloy. The mechanisms of both crack initiation and crack arrest at the grain boundary during the fatigue process were investigated in detail with a special attention to the microstructure of the material. The material is divided roughly into 2 kinds of banded texture, the phase A (white zone) and B (black zone). The phase B consists of the crystal grains (phase C). Near the endurance limit of the material, fatigue life is greatly affected by a slight difference in the stress amplitude. This feature in fatigue lives is responsible to the sharply curved S-N curve at the endurance limit, a general characteristic of the extruded magnesium alloy. The fatigue crack initiates at the upper and lower edges of the grain boundary of the phase C in the early stage of the fatigue life. At stress amplitude of 122.5MPa which is slightly larger than the fatigue limit, the crack propagates to the next B-phase without being blocked by the grain boundary of the phase C, however at 120MPa which is slightly less than the fatigue limit, the crack advance was blocked by the grain boundary. The sharp curved S-N curve is attributable to the crack arrest which is caused by the grain boundary of the phase C. By integrating the relationship between stress intensity factor and crack growth rate, the calculated S-N curve agrees well with the experimental result.","subitem_description_type":"Abstract"}]},"item_2_description_40":{"attribute_name":"資源タイプ(DSpace)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_2_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"10389","nameIdentifierScheme":"WEKO"}],"names":[{"name":"NAN, Zhenyu"}]},{"nameIdentifiers":[{"nameIdentifier":"10173","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000002438640","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000002438640"},{"nameIdentifier":"60019221","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://nrid.nii.ac.jp/nrid/1000060019221"}],"names":[{"name":"Ishihara, Sotomi"}]},{"nameIdentifiers":[{"nameIdentifier":"10174","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000080109107","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/1000080109107"},{"nameIdentifier":"80109107","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://nrid.nii.ac.jp/nrid/1000080109107"}],"names":[{"name":"Goshima, Takahito"}]},{"nameIdentifiers":[{"nameIdentifier":"10392","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Nakanishi, Reiko"}]}]},"item_2_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"社団法人日本機械学会"}]},"item_2_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"rights: 本文データは社団法人日本機械学会の許諾に基づきCiNiiから複製したものである"}]},"item_2_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN0018742X","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03875008","subitem_source_identifier_type":"ISSN"}]},"item_2_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"南, 震宇"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石原, 外美"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"五嶋, 孝仁"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"中西, 礼子"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-02-16"}],"displaytype":"detail","filename":"機械論文A04-1146.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"機械論文A04-1146.pdf","url":"https://toyama.repo.nii.ac.jp/record/3113/files/機械論文A04-1146.pdf"},"version_id":"bd5b5432-d954-4bc3-8543-b831cf51c815"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Fatigue","subitem_subject_scheme":"Other"},{"subitem_subject":"Magnesium Alloy","subitem_subject_scheme":"Other"},{"subitem_subject":"S-N Curve","subitem_subject_scheme":"Other"},{"subitem_subject":"Fatigue Crack","subitem_subject_scheme":"Other"},{"subitem_subject":"Crack Initiation","subitem_subject_scheme":"Other"},{"subitem_subject":"Crack Propagation","subitem_subject_scheme":"Other"},{"subitem_subject":"Crack Arrest","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"AZ31押し出しマグネシウム合金の大気中における疲労特性(非鉄材料,<特集>ギガサイクル疲労)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"AZ31押し出しマグネシウム合金の大気中における疲労特性(非鉄材料,<特集>ギガサイクル疲労)"}]},"item_type_id":"2","owner":"3","path":["558"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-12-21"},"publish_date":"2007-12-21","publish_status":"0","recid":"3113","relation_version_is_last":true,"title":["AZ31押し出しマグネシウム合金の大気中における疲労特性(非鉄材料,<特集>ギガサイクル疲労)"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-25T12:43:43.397223+00:00"}