Faculty Profiles - YAMAGUCHI Tomiko

Papers - YAMAGUCHI Tomiko

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Al/Tiクラッド材接合部の微細構造の観察-真空圧延接合法によるクラッド材の製造とその特性（第４報)- Reviewed

西尾一政,加藤光昭,山口富子,恵良秀則,坂本憲一

溶接学会論文集 22 ( 2 ) 254 - 260 2004.05

Observation of Bond Interface of Al/Ti Clad Material by Transmission Electron Microscopy : Development of Clad Materials by Vacuum Roll Bonding and its Characteristics (Report 4) Reviewed

NISHIO Kazumasa, KATOH Mitsuaki, YAMAGUCHI Tomiko, ERA Hidenori, SAKAMOTO Kenichi

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY ( Japan Welding Society ) 22 ( 2 ) 254 - 260 2004.05

Language：English Publishing type：Research paper (scientific journal)

Clad materials consisting of aluminum and titanium plates were produced using the vacuum roll bonding method. This method produces an excellent bond without the intermetallic phase formation observable with conventional optical microscope. Bond interfacial structures in the Al/Ti clad material were observed by TEM, and the bonding mechanism were discussed. Tensile fracture occurred in the aluminum base metal of the clad material on the tensile test and the maximum tensile strength was 95 MPa. In addition, no cracks near the bonded zone were observed in the tensile fractured specimen. Nano-crystals and ultra fine-crystals were observed within the bonded zone using TEM. Within the ultra fine-crystal zone, the compositions of Al and Ti were approximately 80 and 20 at%, respectively. Precipitates those identified as a super lattice structure of the L12 type and an intermetallic phase TiAl3 (D022 type), which are nano-meter size particles, were observed within the ultra fine-crystal zone having Al solid solution (FCC crystal) supersatulated with Ti. The bonding mechanism of aluminum to titanium on the vacuum roll bonding method can be considered that very small thin regions of aluminum surface to be bonded are melted by frictional heat due to the great relative sliding between aluminum and titanium plates during the roll bonding. After that the bonded zone is cooled rapidly due to the diffusion of the heat from the bonded zone toward each base metal and rolls, therefore, the nano-crystals and the ultra fine-crystals are formed in the bonded zone.

DOI： 10.2207/qjjws.22.254

Scopus

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Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=5444256456&origin=inward

Modification of Spraying Coatings using YAG Laser

LI Yu, OKAMINE Shinji, NISHIO Kazumasa, KATOH Mitsuaki, YAMAGUCHI Tomiko

Preprints of the National Meeting of JWS ( Japan Welding Society ) 74 20 - 21 2004.03

Wear characteristics of Al-Ti intermetallic compound

NONO Kiyoshige

17 ( 3 ) 2004.03

シーム溶接法によるチタン板と軟鋼板との重ね溶接 Reviewed

西尾一政,加藤光昭,山口富子,徳永辰也,松本敦夫

溶接学会論文集 21 ( 4 ) 553 - 559 2003.11

Joining of A1050/A5052 and A1050/Cu by Ultrasonic Bonding and their Materials Evaluation Reviewed

Hamed ABDEL-ALEEM,YAMAGATA Toshio,KATOH Mitsuaki,NISHIO Kazumasa,YAMAGUCHI Tomiko

21 ( 4 ) 493 - 500 2003.11

Joining of A1050/A5052 and A1050/Cu by ultrasonic bonding and their materials evaluation Reviewed

Abdel-Aleem H., Yamagata T., Katoh M., Nishio K., Yamaguchi T.

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society 21 ( 4 ) 493 - 500 2003.11

Modeling of the yoke-magnetization in MFL-testing by finite elements Reviewed

Katoh M., Masumoto N., Nishio K., Yamaguchi T.

NDT and E International 36 ( 7 ) 479 - 486 2003.10

20世紀前半に八幡製鉄所で製造されたレールの材質

松永守央,西尾一政,山口富子,桝本弘毅,柏原正

「鉄の歴史ムその技術と文化ム」フォーラム、日本鉄鋼協会/第５回公開研究発表会論文集 76 - 83 2003.07

X-ray Study on Plastic Strain Distribution in Soft Zone of A5052-H Weld Metal Reviewed

M.Katoh,K.Nishio,T.Yamaguchi

Nondestructive Characterizaition of Materials XI 223 - 231 2003.06

Modeling of the yoke-magnetization in MFL-testing by finite elements Reviewed

Mitsuaki Katoh,Noritaka Masumoto,Kazumasa Nishio,Tomiko Yamaguchi

NDT & E International 36 ( 6 ) 479 - 486 2003.06

チタンのレーザ溶接部の材料学的性質に及ぼすシールドガスの影響

西尾一政,加藤光昭,山口富子,田中孝彦,江頭隆一

ＳＶＢＬ年報/九州工業大学 ( 7 ) 64 - 69 2003.06

Surface modification of titanium by laser irradiation

YAMAGUCHI T., NISHIO K., KATOH M., ERA H., OGATA Y.

72 144 - 145 2003.03

Grain refinement using high frequency induction heating

SAITOH Nobuhiko, NISHIO Kazumasa, KATOH Mitsuaki, YAMAGUCHI Tomiko

72 106 - 107 2003.03

Surface modification of titanium by laser irradiation

YAMAGUCHI T., NISHIO K., KATOH M., ERA H.

71 332 - 333 2002.09

Effect of Traveling Speed of Laser Beam on Grain Refinement

ETO Ryuichi, NISHIO Kazumasa, KATOH Mitsuaki, YAMAGUCHI Tomiko

71 334 - 335 2002.09

Bonding of dissimilar metals using vacuum roll bonding method

NISHIO Kazumasa, KATOH Mitsuaki, YAMAGUCHI Tomiko, KAWANO Takayuki

71 F - 23-F-28 2002.09

結晶粒の微細化に及ぼすレーザビーム移動速度の影響

西尾一政,加藤光昭,山口富子,江頭隆一

ＳＶＢＬ年報/九州工業大学６ 56 - 57 2002.08

Materials evaluation of diffusion bonded steel bar and its impact characteristics Reviewed

Mitsuaki Katoh,Kazumasa Nishio,Tomiko Yamaguchi

NDT & E International 35 ( 6 ) 263 - 271 2002.06

STUDY ON FALSE INDICATION DUE TO DIFFERENCE OF PERMEABILITY IN MAGNETIC TESTING OF STEEL WELDS Reviewed

Mitsuaki Katoh,Kazumasa Nishio,Tomiko Yamaguchi,Akhmadi Eko Wardoyo

Proceedings of the 6th Far-East Conference on Nondestructive Testing 315 - 320 2002.04

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