ClusteredShrinkagePoresinIll-ConditionedAluminumAlloyDieCastings

• 資料種別: 文書・図像類
• タイトル: ClusteredShrinkagePoresinIll-ConditionedAluminumAlloyDieCastings
• 著者・編者: Hangai, Yoshihiko; Kuwazuru, Osamu; Yano, Takayuki; Utsunomiya, Takao; Murata, Yozo; Kitahara, Soichiro; Bidhar, Sujit; Yoshikawa, Nobuhiro
• 著者標目: Hangai, Yoshihiko; Kuwazuru, Osamu; Yano, Takayuki; Utsunomiya, Takao; Murata, Yozo; Kitahara, Soichiro; Bidhar, Sujit; Yoshikawa, Nobuhiro
• 出版事項: The Japan Institute of Metals (日本金属学会)
• 出版年月日等: 2010
• 出版年（W3CDTF）: 2010
• タイトル（掲載誌）: Materials Transactions
• 巻号年月日等（掲載誌）: 51 9
• 掲載巻: 51
• 掲載号: 9
• 掲載ページ: 1574-1580
• ISSN（掲載誌）: ISSN : 1345-9678
• 本文の言語コード: eng
• 件名標目: castingdefect; shrinkageporosity; diecasting; aluminumalloy; X-raycomputedtomography; fatigue; serialsectioning
• 対象利用者: 一般
• 一般注記: Thegeometricfeaturesofclusteredshrinkagepores(CSP)inill-conditionedaluminumalloydiecastingswererevealedandtheireffectonthefatiguestrengthwasdiscussed.ToobtainthegeometricfeaturesofCSP,anobservationusingacommercialmicrofocusX-raycomputedtomography(X-rayCT)systemwascarriedoutandthepositionandsizeofCSPwereconfirmed.However,thedetailedgeometryoftheCSPcouldnotbeclearlyobservedbyX-rayCT,becauseeachporeintheCSPwastoosmalltoobserveowingtotheinsufficientresolutionoftheCTimage.Wedevelopedaserialsectioningsystemwithapolishingmachineandanopticalmicroscope.ObservationusingtheserialsectioningsystemclearlyshowedthataCSPconsistsofmanyinterconnectedsmallpores,whichformedanextremelycomplicatedshape.TheCSPwasthoughttogrowfromrelativelylargegaspores,whichconnecttosmallporesandconsequentlygenerateacavitywithahugevolumeandacomplicatedgeometry.ThecomplexgeometryofCSPresultedintheconcentrationofstressaroundCSP,andsignificantlyunderminesmechanicalpropertiessuchastensilestrengthandfatiguestrength.
• オンライン閲覧公開範囲: 限定公開
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 福井大学 : 福井大学学術機関リポジトリ