"中島広豊,渡邊海香,岡田陽太郎,竹山雅夫","侵入型軽元素を含む TiAl 多元系状態図の実験および計算による構築","日本鉄鋼協会 材料の組織と特性部会「高温材料の高強度化」研究会","「高温材料の高強度化」研究会 最終報告会",,,,,2022,Mar.
"岡田 陽太郎,山形 遼介,中島 広豊,竹山 雅夫","TiAl基合金におけるβ-Ti, α2-Ti3Al, γ-TiAl各相のヤング率および硬さに及ぼす固溶酸素の影響","日本金属学会第169回講演大会","日本金属学会2021年秋期(第169回)講演大会概要集",,,,"p. 51",2021,Sept.
"山形遼介,岡田陽太郎,中島広豊,竹山雅夫","γ-TiAl基合金の室温破壊靱性に及ぼす固溶酸素の影響","2021年春期講演大会","2021年春期講演大会概要集","日本金属学会",,,"p. 214",2021,Mar.
"岡田 陽太郎,山形 遼介,中島 広豊,竹山雅夫","Ti-Al-Cr三元系における平衡β-Ti/γ-TiAl相のナノインデンテーション法による機械的特性評価","耐熱金属材料第123委員会3月期研究会","耐熱金属材料第123委員会研究報告","日本学術振興会","Vol. 62","No. 1","pp. 87-92",2021,Mar.
"谷口宗大,岡田 陽太郎,山形 遼介,中島 広豊,竹山雅夫","TiAl二元系におけるα2-Ti3Al/γ-TiAlラメラ組織のナノインデンテーション法による機械的特性評価","耐熱金属材料第123委員会3月期研究会","耐熱金属材料第123委員会研究報告","日本学術振興会","Vol. 62","No. 1","pp. 73-86",2021,Mar.
"Yotaro Okada,Sota Taniguchi,Ryosuke Yamagata,Hirotoyo Nakashima,Masao Takeyama","Nano-indentation Modulus and Hardness of β-Ti/α2-Ti3Al/γ-TiAl in Ti-Al-Cr System","MRS2020 fall meeting","2020 MRS Virtual Spring/Fall Meeting,, Fall Abstracts Final Program",,,,"  F.SF07.02.05",2020,Nov.
"Sota Taniguchi,Yotaro Okada,Ryosuke Yamagata,Hirotoyo Nakashima,Masao Takeyama","Evaluation of Mechanical Properties for Constituent Phases by Nano-indentation Method in γ-TiAl Alloys",,"2020 MRS Virtual Spring/Fall Meeting,  Fall Abstracts Final Program",,,,"  F.SF07.06.08",2020,Nov.
"岡田陽太郎,谷口宗大,山形遼介,中島広豊,竹山雅夫","TiAl基合金における平衡β-Ti/γ-TiAl相の機械的特性およびその組成依存性","日本金属学会 2020年度秋期講演大会","日本金属学会 2020年度秋期講演大会概要集","日本金属学会",,,,2020,Sept.
"谷口宗大,岡田陽太郎,山形遼介,中島広豊,竹山雅夫","TiAl基合金の構成相のナノインデンテーションによる特性評価法","日本金属学会 2020年度秋期講演大会","日本金属学会 2020年度秋期講演大会概要集","日本金属学会",,,,2020,Sept.
"岡田陽太郎,谷口宗大,山形遼介,中島広豊,竹山雅夫","β-Ti/α2-Ti3Al/γ-TiAl 3 相からなるTiAl 基合金のナノインデンテーション法による各相の物性評価","日本金属学会第166回春期講演大会","日本金属学会第166回春期講演大会概要集","日本金属学会",,,"p. 49",2020,Mar.
"Yotaro Okada,Ryosuke Yamagata,Hirotoyo Nakashima,Masao Takeyama","Deformation Behavior of Advanced γ-TiAl Based Alloys by In-Situ SEM Observation and Digital Image Correlation Technique","Joint EPRI ? 123HiMAT International Conference","Proceedings of Joint EPRI ? 123HiMAT International Conference","EPRI & JSPS",,,"pp. 1380-1388",2019,Oct.
"Ryosuke Yamagata,Yotaro Okada,Hirotoyo Nakashima,Masao Takeyama","Microstructure Effect on Enhancement of Room-TemperatureDuctility in β-Ti Containing γ-TiAl Based Alloys","Joint EPRI ? 123HiMAT International Conference","Proceedings of Joint EPRI-123HiMAT International Conference",,,,"pp. 1446-1456",2019,Oct.
"Yotaro Okada,Ryosuke Yamagata,Hirotoyo Nakashima,Masao Takeyama","Analysis of local deformation behavior in TiAl based alloys under tensile loading by digital image correlation","Intermetallics 2019","Programme and Abstracts Intermetallics 2019.","Kern GmbH",,,"pp. 162-163",2019,Sept.
"岡田陽太郎,若林英輝,竹山雅夫","TiAl 基合金におけるラメラ組織の微視的変形挙動","日本金属学会秋期講演大会","日本金属学会秋期講演大会概要集","(公社）日本金属学会",,,"p. 111",2019,Sept.
"Ryosuke Yamagata,Yotaro Okada,Hirotoyo Nakashima,Masao Takeyama","Microstructure Design for Enhancement of Room-Temperature Ductility in Multi-Component TiAl Alloys","2018 MRS Fall Meeting & Exhibit","MRS Advances","2019 Materials Research Society",,,"pp. 1523-1529",2019,May
"山形 遼介,岡田陽太郎,若林英輝,中島 広豊,竹山 雅夫","鍛造TiAl基合金の室温延性に及ぼす組織因子の影響","日本学術振興会耐熱金属材料第123委員会3月期研究会","日本学術振興会耐熱金属材料第123委員会研究報告","日本学術振興会","Vol. 60","No. 1","pp. 141-149",2019,Mar.
"Yotaro Okada,Loris J. Signori,Ryosuke Yamagata,Hirotoyo Nakashima,Masao Takeyama","In Situ SEM Observation and Measurement of Strain Localization During Tensile in γ-TiAl Based Alloys","2018 MRS Fall Meeting & Exhibit","2018 MRS Fall Meeting & Exhibit","MRS",,,"p. 1716",2018,Nov.
"岡田 陽太郎,山形 遼介,中島 広豊,竹山 雅夫","TiAl基合金の引張変形下におけるDIC法による局所ひずみの定量化","日本学術振興会耐熱金属材料第123委員会11月期研究会","日本学術振興会耐熱金属材料第123委員会研究報告","日本学術振興会","Vol. 59","No. 3","pp. 515-522",2018,Nov.
"山形 遼介,Loris Signori,岡田 陽太郎,中島 広豊,竹山雅夫","鍛造γ-TiAl基合金の室温延性および疲労き裂進展特性に対するβ-Ti相の効果","日本金属学会2018年秋期講演（第163回）大会","日本金属学会2018年秋期講演（第163回）大会講演概要集DVD","日本金属学会",,,,2018,Aug.
"岡田 陽太郎,Loris SIGNORI,山形 遼介,中島 広豊,竹山 雅夫","γ-TiAl基合金における引張変形中の局所ひずみの定量化","日本金属学会2018年秋期講演（第163回）大会","日本金属学会2018年秋期講演（第163回）大会講演概要集DVD.","日本金属学会.",,,,2018,Aug.
"Loris SIGNORI,Yotaro OKADA,Kenta MURATA,Ryosuke YAMAGATA,Hirotoyo NAKASHIMA,Masao TAKEYAMA","Effect of temperature on fatigue crack growth propagation ofwrought γ-based TiAl alloy containing β-phase","日本金属学会2018 年春期（第162 回）講演大会","日本金属学会2018 年春期（第162 回）講演大会プログラム","日本金属学会","Vol. 57","No. 3",,2018,Mar.
"岡田 陽太郎,中村 大輝,Loris SIGNORI,山形 遼介,中島 広豊,竹山 雅夫","鍛造TiAl 基合金の疲労き裂進展抵抗に及ぼすβ/γ Duplex 組織の役割","日本金属学会2018 年春期（第162 回）講演大会","日本金属学会2018 年春期（第162 回）講演大会プログラム","日本金属学会","Vol. 57","No. 3",,2018,Mar.
"Loris SIGNORI,Yotaro OKADA,Taiki NAKAMURA,Ryosuke YAMAGATA,Hirotoyo NAKASHIMA,Masao TAKEYAMA","Role of β/γ Duplex Microstructure on Crack Propagation of Wrought γ-based Titanium Aluminides at Ambient Temperature","日本学術振興会耐熱金属材料第123委員会設立60周年記念国際シンポジウム","日本学術振興会耐熱金属材料第123委員会設立60周年記念シンポジウム研究報告","日本学術振興会","Vol. 58","No. 3","p. 413-414",2017,Nov.
"Loris Signori,Taiki Nakamura,Yotaro Okada,Hirotoyo Nakashima,Masao Takeyama","Effect of microstructure containing β-Ti phase on crack propagation behavior of wrought γ-TiAl based alloys","Intermetallics 2017 International Conference","Karlsruher Institut for Tech.","Karlsruher Institut for Technologie",,,"pp. 169-170",2017,Oct.
"Loris SIGNORI,Taiki NAKAMURA,Yotaro OKADA,Ryosuke YAMAGATA,Hirotoyo NAKASHIMA,Masao TAKEYAMA","The effect β/γ duplex microstructure on fatigue crack growth behavior of wrought γ-TiAl based alloys","日本金属学会第161回秋期講演大会","日本金属学会講演概要集","日本金属学会",,,,2017,Sept.
"中村 大輝,岡田 陽太郎,中島 広豊,小林 覚,竹山 雅夫","鍛造TiAl基合金の疲労き裂進展挙動に及ぼす組織の影響","耐熱金属材料第123委員会3月期研究会","耐熱金属材料第123委員会研究報告","日本学術振興会","Vol. 58","No. 1","pp. 85-94",2017,Mar.