WEKO3
アイテム
{"_buckets": {"deposit": "5de2572f-b2dc-4423-8087-8fd4c571e432"}, "_deposit": {"created_by": 17, "id": "13147", "owners": [17], "pid": {"revision_id": 0, "type": "depid", "value": "13147"}, "status": "published"}, "_oai": {"id": "oai:kokushikan.repo.nii.ac.jp:00013147", "sets": ["1059", "865"]}, "author_link": ["20601"], "control_number": "13147", "item_10006_alternative_title_22": {"attribute_name": "その他(別言語等)のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "摩擦攪拌プロセスによるZn-22Al超塑性合金の革新的機能の創成", "subitem_alternative_title_language": "ja"}]}, "item_10006_date_granted_40": {"attribute_name": "学位授与年月日", "attribute_value_mlt": [{"subitem_dategranted": "2018-03-20"}]}, "item_10006_degree_grantor_38": {"attribute_name": "学位授与機関", "attribute_value_mlt": [{"subitem_degreegrantor": [{"subitem_degreegrantor_name": "国士舘大学"}], "subitem_degreegrantor_identifier": [{"subitem_degreegrantor_identifier_name": "32616", "subitem_degreegrantor_identifier_scheme": "kakenhi"}]}]}, "item_10006_degree_name_37": {"attribute_name": "学位名", "attribute_value_mlt": [{"subitem_degreename": "博士 (工学)"}]}, "item_10006_description_26": {"attribute_name": "著者ID", "attribute_value_mlt": [{"subitem_description": "J-GLOBAL ID : 201801016373837352", "subitem_description_type": "Other"}]}, "item_10006_description_34": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "This dissertation is a systematic study on the developments of innovative functions for Zn-22Al superplastic alloy through friction stir processing (FSP), which is a type of friction stir welding (FSW).\nSuperplastic materials are fine-grained polycrystalline solids that have recently gathered interest because of their excellent tensile elongation and behavior in superplastic forming (SPF) technology. SPF is a forming method that produces complex shaped parts in a single forming process. The grain size, which is one of the most important superplastic parameters, affects the strain rate and ductility in grain boundary sliding (GBS). In GBS, a smaller grain size leads to a larger grain boundary area that results in higher elongation and therefore more favorable superplastic behavior.\nIn the present study, we concentrated on Zn-22Al, a commercial superplastic alloy having a wide range of applications in different fields of studies. Zn-22Al has a seismic property, which makes it applicable in buildings for energy absorption during earthquakes. Zn-22Al is also used for electronic enclosures, cabinets and panels, business machine parts, and medical and other laboratory tools. Zn-22Al has the characteristic of reaching its highest superplasticity at a relevantly lower temperature comparing other conventional superplastic alloys and can be used for superplastic forming and diffusion bonding purposes. However, applications of Zn-22Al receive some limitation especially in structural industries such as easily deformation under constant pressure due to its high strain rate sensitivity. Therefore, methods of improving mechanical properties of Zn-22Al, also developing new techniques for manufacturing new composites of this alloy would become essential.\nThe FSP technique, which is a relatively new processing method requiring fewer processing parameters, was used in the present study to refine the grain structure and improve the mechanical and superplastic properties of Zn-22Al. The results revealed FSP can achieve fine grains and improve the superplastic properties of Zn-22Al.\nIn addition, FSP was used for a novel forming method, known as friction stir forming (FSF), to produce multi-functional superplastic composites. By using the FSF technique, perforated steel sheet was mechanically interlocked between Zn-22Al sheets to produce a superplastic damping sheet with outstanding damping capacity. Moreover, insulated copper wire was mechanically interlocked within Zn-22Al alloy to produce a multi-functional superplastic alloy with the ability to transfer information or energy.\nFinally, FSF can improve the mechanical properties of Zn-22Al superplastic alloy by interlocking the stainless steel strands within the alloy. Using the friction stir based technique can have a significant scientific impact on the production of functional composites with respect to both mechanical engineering and electrical engineering.", "subitem_description_type": "Abstract"}]}, "item_10006_description_39": {"attribute_name": "学位授与年度", "attribute_value_mlt": [{"subitem_description": "平成29年度", "subitem_description_type": "Other"}]}, "item_10006_description_53": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_10006_dissertation_number_42": {"attribute_name": "学位授与番号", "attribute_value_mlt": [{"subitem_dissertationnumber": "甲第46号"}]}, "item_10006_subject_50": {"attribute_name": "NDC", "attribute_value_mlt": [{"subitem_subject": "563.8", "subitem_subject_scheme": "NDC"}, {"subitem_subject": "566.6", "subitem_subject_scheme": "NDC"}]}, "item_10006_text_33": {"attribute_name": "発表年月日", "attribute_value_mlt": [{"subitem_text_value": "2018-03-20"}]}, "item_10006_text_41": {"attribute_name": "報告番号", "attribute_value_mlt": [{"subitem_text_value": "甲第46号"}]}, "item_10006_text_60": {"attribute_name": "異なりアクセス2", "attribute_value_mlt": [{"subitem_text_value": "Mofidi Tabatabaei Hamed モフィディタバタバイハメッド モフィディタバタバイ・ハメッド モフィディハメッド モフィディ・ハメッド 西原公"}]}, "item_10006_textarea_57": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_textarea_value": "FSP | Friction Stir Processing | Zn-22Al | multi-functional superplastic composites | 超塑性合金 | 亜鉛合金 | アルミニウム含有合金"}]}, "item_10006_version_type_54": {"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_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "open access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_abf2"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Mofidi Tabatabaei, Hamed", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "20601", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-06-26"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "kdoc_k_00046_01.pdf", "filesize": [{"value": "7.5 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 7500000.0, "url": {"label": "本文", "objectType": "fulltext", "url": "https://kokushikan.repo.nii.ac.jp/record/13147/files/kdoc_k_00046_01.pdf"}, "version_id": "5204afc3-a86e-442e-b85c-854a61861b95"}, {"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-06-26"}], "displaytype": "detail", "download_preview_message": "", "file_order": 1, "filename": "kdoc_k_00046_02.pdf", "filesize": [{"value": "316.3 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 316300.0, "url": {"label": "内容の要旨及び論文審査の結果の要旨", "objectType": "abstract", "url": "https://kokushikan.repo.nii.ac.jp/record/13147/files/kdoc_k_00046_02.pdf"}, "version_id": "91ddb4e2-2e34-4fdc-b832-594f65d9321d"}]}, "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": "doctoral thesis", "resourceuri": "http://purl.org/coar/resource_type/c_db06"}]}, "item_title": "Creation of Innovative Functions for Zn-22Al Superplastic Alloy through Friction Stir Processing", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Creation of Innovative Functions for Zn-22Al Superplastic Alloy through Friction Stir Processing", "subitem_title_language": "en"}]}, "item_type_id": "10006", "owner": "17", "path": ["1059", "865"], "permalink_uri": "https://kokushikan.repo.nii.ac.jp/records/13147", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2018-06-26"}, "publish_date": "2018-06-26", "publish_status": "0", "recid": "13147", "relation": {}, "relation_version_is_last": true, "title": ["Creation of Innovative Functions for Zn-22Al Superplastic Alloy through Friction Stir Processing"], "weko_shared_id": -1}
Creation of Innovative Functions for Zn-22Al Superplastic Alloy through Friction Stir Processing
https://kokushikan.repo.nii.ac.jp/records/13147
https://kokushikan.repo.nii.ac.jp/records/1314755ee543d-ba29-468a-af87-e0293200d97a
名前 / ファイル | ライセンス | アクション |
---|---|---|
本文 (7.5 MB)
|
|
|
内容の要旨及び論文審査の結果の要旨 (316.3 kB)
|
|
Item type | 学位論文 / Thesis or Dissertation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2018-06-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Creation of Innovative Functions for Zn-22Al Superplastic Alloy through Friction Stir Processing | |||||
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_db06 | |||||
資源タイプ | doctoral thesis | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | 摩擦攪拌プロセスによるZn-22Al超塑性合金の革新的機能の創成 | |||||
言語 | ja | |||||
著者 |
Mofidi Tabatabaei, Hamed
× Mofidi Tabatabaei, Hamed |
|||||
著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | J-GLOBAL ID : 201801016373837352 | |||||
発表年月日 | ||||||
2018-03-20 | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This dissertation is a systematic study on the developments of innovative functions for Zn-22Al superplastic alloy through friction stir processing (FSP), which is a type of friction stir welding (FSW). Superplastic materials are fine-grained polycrystalline solids that have recently gathered interest because of their excellent tensile elongation and behavior in superplastic forming (SPF) technology. SPF is a forming method that produces complex shaped parts in a single forming process. The grain size, which is one of the most important superplastic parameters, affects the strain rate and ductility in grain boundary sliding (GBS). In GBS, a smaller grain size leads to a larger grain boundary area that results in higher elongation and therefore more favorable superplastic behavior. In the present study, we concentrated on Zn-22Al, a commercial superplastic alloy having a wide range of applications in different fields of studies. Zn-22Al has a seismic property, which makes it applicable in buildings for energy absorption during earthquakes. Zn-22Al is also used for electronic enclosures, cabinets and panels, business machine parts, and medical and other laboratory tools. Zn-22Al has the characteristic of reaching its highest superplasticity at a relevantly lower temperature comparing other conventional superplastic alloys and can be used for superplastic forming and diffusion bonding purposes. However, applications of Zn-22Al receive some limitation especially in structural industries such as easily deformation under constant pressure due to its high strain rate sensitivity. Therefore, methods of improving mechanical properties of Zn-22Al, also developing new techniques for manufacturing new composites of this alloy would become essential. The FSP technique, which is a relatively new processing method requiring fewer processing parameters, was used in the present study to refine the grain structure and improve the mechanical and superplastic properties of Zn-22Al. The results revealed FSP can achieve fine grains and improve the superplastic properties of Zn-22Al. In addition, FSP was used for a novel forming method, known as friction stir forming (FSF), to produce multi-functional superplastic composites. By using the FSF technique, perforated steel sheet was mechanically interlocked between Zn-22Al sheets to produce a superplastic damping sheet with outstanding damping capacity. Moreover, insulated copper wire was mechanically interlocked within Zn-22Al alloy to produce a multi-functional superplastic alloy with the ability to transfer information or energy. Finally, FSF can improve the mechanical properties of Zn-22Al superplastic alloy by interlocking the stainless steel strands within the alloy. Using the friction stir based technique can have a significant scientific impact on the production of functional composites with respect to both mechanical engineering and electrical engineering. |
|||||
学位名 | ||||||
学位名 | 博士 (工学) | |||||
学位授与機関 | ||||||
学位授与機関識別子Scheme | kakenhi | |||||
学位授与機関識別子 | 32616 | |||||
学位授与機関名 | 国士舘大学 | |||||
学位授与年度 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 平成29年度 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 2018-03-20 | |||||
報告番号 | ||||||
甲第46号 | ||||||
学位授与番号 | ||||||
学位授与番号 | 甲第46号 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 563.8 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 566.6 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
キーワード | ||||||
FSP | Friction Stir Processing | Zn-22Al | multi-functional superplastic composites | 超塑性合金 | 亜鉛合金 | アルミニウム含有合金 |