{"_buckets": {"deposit": "78e5c89b-f82c-451a-bff1-b12e4970d8e3"}, "_deposit": {"id": "2931", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "2931"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00002931"}, "item_5_alternative_title_1": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "Mechanical Properties of Titanium Casting Prepared in Different Atmospheres"}]}, "item_5_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1997-07", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "4", "bibliographicPageEnd": "334", "bibliographicPageStart": "330", "bibliographicVolumeNumber": "16", "bibliographic_titles": [{"bibliographic_title": "\u6b6f\u79d1\u6750\u6599\u30fb\u5668\u68b0"}, {"bibliographic_title": "\u6b6f\u79d1\u6750\u6599\u30fb\u5668\u68b0", "bibliographic_titleLang": "en"}]}]}, "item_5_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "\u30a2\u30eb\u30b4\u30f3\u5439\u304d\u4ed8\u3051\u96f0\u56f2\u6c17\u3068\u7f6e\u63db\u96f0\u56f2\u6c17\u306e\u4e8c\u3064\u306e\u96f0\u56f2\u6c17\u3067\u30c1\u30bf\u30f3\u92f3\u9020\u4f53\u3092\u4f5c\u88fd\u3057\u305f.\u92f3\u9020\u4f53\u306e\u5f15\u5f35\u5f37\u3055\u3068\u7834\u65ad\u4f38\u3073, \u304a\u3088\u3073\u786c\u3055\u3092\u6e2c\u5b9a\u3057, \u305d\u308c\u3089\u3092\u92f3\u9020\u4f53\u4e2d\u306eO\u3068N\u306e\u542b\u6709\u91cf\u3068\u95a2\u9023\u3065\u3051\u3066\u691c\u8a0e\u3057\u305f.\u30a2\u30eb\u30b4\u30f3\u5439\u304d\u4ed8\u3051\u96f0\u56f2\u6c17\u3067\u5f97\u305f\u92f3\u9020\u4f53\u306e\u5f15\u5f35\u5f37\u3055\u3068\u786c\u3055\u306f, \u7f6e\u63db\u96f0\u56f2\u6c17\u306e\u305d\u308c\u3088\u308a\u5927\u304d\u3044\u304c, \u4f38\u3073\u306f\u9006\u3067\u3042\u3063\u305f.O\u306e\u542b\u6709\u91cf\u306f, \u30a4\u30f3\u30b4\u30c3\u30c8, \u30a4\u30f3\u30b4\u30c3\u30c8\u3092\u6eb6\u89e3\u51dd\u56fa\u3055\u305b\u305f\u3082\u306e, \u92f3\u9020\u4f53\u306e\u9806\u306b\u591a\u304b\u3063\u305f.\u7f6e\u63db\u96f0\u56f2\u6c17\u4e2d\u3067\u30a4\u30f3\u30b4\u30c3\u30c8\u3092\u6eb6\u89e3\u51dd\u56fa\u3055\u305b\u305f\u3082\u306e\u3068\u92f3\u9020\u4f53\u306eO\u306e\u542b\u6709\u91cf\u306f, \u30a2\u30eb\u30b4\u30f3\u5439\u304d\u4ed8\u3051\u96f0\u56f2\u6c17\u306e\u5834\u5408\u3088\u308a\u591a\u3044\u50be\u5411\u306b\u3042\u3063\u305f.\u3053\u308c\u306b\u5bfe\u3057\u3066, \u30a2\u30eb\u30b4\u30f3\u5439\u304d\u4ed8\u3051\u96f0\u56f2\u6c17\u3067\u5f97\u305f\u92f3\u9020\u4f53\u306eN\u306e\u542b\u6709\u91cf\u306f, \u7f6e\u63db\u96f0\u56f2\u6c17\u306e\u305d\u308c\u306e13\u301c15\u500d\u3067\u3042\u3063\u305f.\u3053\u306e\u7d50\u679c\u304b\u3089, \u4e0a\u3067\u8ff0\u3079\u305f\u30a2\u30eb\u30b4\u30f3\u5439\u304d\u4ed8\u3051\u96f0\u56f2\u6c17\u3068\u7f6e\u63db\u96f0\u56f2\u6c17\u306b\u304a\u3051\u308b\u92f3\u9020\u4f53\u306e\u6a5f\u68b0\u7684\u6027\u8cea\u306e\u9055\u3044\u306f, N\u306e\u542b\u6709\u91cf\u306b\u95a2\u4fc2\u3059\u308b\u3053\u3068\u304c\u793a\u5506\u3055\u308c\u305f.", "subitem_description_type": "Abstract"}, {"subitem_description": "Titanium castings were prepared in two atmospheres; one was argon-arc melted and cast in the ambient atmosphere(AA) and the other was argon-arc melted and cast in the argon-replaced atmosphere(ARA).Tensile test and Vickers hardness measurement were conducted. The results were discussed in relation to the contents of oxygen and nitrogen absorbed by titanium during the melting and the casting procedures. While the tensile strength and the hardness of castings obtained in AA were higher than those of castings obtained in ARA, the elongation exhibited the reverse relation. The oxygen content was ranked from least to most: the ingot, the solidified and the cast. The oxygen content of the solidified and the cast obtained in ARA tended to be higher than that of castings obtained in AA. On the contrary, the nitrogen content of castings obtained in AA was 13 to 15 times higher than that of castings obtained in ARA. The results of this study indicate that the nitrogen content relates to the above-mentioned difference in mechanical properties of castings obtained in AA or ARA.", "subitem_description_type": "Abstract"}]}, "item_5_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "39932", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Okawa, Seigo"}]}, {"nameIdentifiers": [{"nameIdentifier": "39933", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Watanabe, Kouichi"}]}, {"nameIdentifiers": [{"nameIdentifier": "39934", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Kanatani, Mitsugu"}]}, {"nameIdentifiers": [{"nameIdentifier": "39935", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Nakano, Syuji"}]}, {"nameIdentifiers": [{"nameIdentifier": "39936", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Miyakawa, Osamu"}]}, {"nameIdentifiers": [{"nameIdentifier": "39937", "nameIdentifierScheme": 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