研究者詳細 - 山口　富子

論文 - 山口　富子

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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)- 査読有り

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年05月

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) 査読有り

Nishio K., Katoh M., Yamaguchi T., Era H., Sakamoto K.

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society ( 社団法人溶接学会 ) 22 ( 2 ) 254 - 260 2004年05月

記述言語：英語掲載種別：研究論文（学術雑誌）

Clad materials consisting of aluminum and aluminum 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 AI/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 30 and 20 at%, respectively. Precipitates those identified as a super lattice structure of the L12type and an intermetallic phase TiAl3(D0zztype), 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

CiNii Article

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レーザ照射による溶射皮膜の材質改善について

李ユ, 岡峯慎治, 西尾一政, 加藤光昭, 山口富子

溶接学会全国大会講演概要 = PREPRINTS OF THE NATIONAL MEETING OF J.W.S. ( 社団法人溶接学会 ) 74 20 - 21 2004年03月

記述言語：日本語掲載種別：研究論文（学術雑誌）

廃棄物焼却炉のボイラチューブでは付着灰中に含まれる低融点塩化物などにより激しい腐食を生じることがしられている。そこで、本研究では溶射皮膜にレーザ照射を施し、高機能化の可能性を検討した。

DOI： 10.14920/jwstaikai.2004s.0.9.0

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/110003430838

Al-Ti金属間化合物の創製と摩耗特性

濃野浄成, 西尾一政, 加藤光昭, 山口富子, 坂本憲一

材料とプロセス : 日本鉄鋼協会講演論文集 = Current advances in materials and processes : report of the ISIJ meeting 17 ( 3 ) 2004年03月

シーム溶接法によるチタン板と軟鋼板との重ね溶接査読有り

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年11月

Joining of A1050/A5052 and A1050/Cu by Ultrasonic Bonding and their Materials Evaluation 査読有り

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

溶接学会論文集 21 ( 4 ) 493 - 500 2003年11月

Joining of A1050/A5052 and A1050/Cu by ultrasonic bonding and their materials evaluation 査読有り

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年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

We tried to bond A1050/A5052 and A1050/Cu by ultrasonic spot bonding and evaluated the bondability of joints by performing tensile shear test, the observation of microstructures and ultrasonic testing. In principle a good joint was obtained by ultrasonic bonding when we selected good bonding conditions and no intermetallic compound was observed at bond interface. It was observed that a crack initiated just before the maximum load near the boundary of the bond area of A1050 in both cases of A1050/A5052 and A1050/Cu by radiographic testing during shear test. Then bond area started to deform and changed its shape from circle to ellipse and the crack propagated further. The maximum load in shear test was obtained at the appropriate input energy depending on the cases of A1050/A5052 and A1050/Cu. The situation of bonds could be evaluated by ultrasonic testing. We could observe nano-crystals near the bond interface of A1050/Cu with TEM probably due to the rapid deformation during the bonding.

Scopus

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Modeling of the yoke-magnetization in MFL-testing by finite elements 査読有り

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

NDT and E International 36 ( 7 ) 479 - 486 2003年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

The yoke-magnetization is very popular in magnetic particle testing of welds. The detectability of a flaw by using this method largely depends on the magnetic flux density passing through a specimen to be examined or on the intensity of magnetic field acting in/on the specimen. In Japan inspectors have to check and confirm the appropriate magnetizing situation of the specimen by using an A-type standard test specimen specified in the standard JIS G 0565-1992. The development of indications by magnetic particles on the standard specimen is influenced by the air gap between the standard specimen and the specimen surface to be examined. Since the height and breadth of an artificial flaw in the standard specimen also influence the leakage of the magnetic flux density from the flaw, the information about the magnetizing situation is complex. In this paper we first identify influences of some factors on the magnetic leakage flux density from an artificial flaw in the standard specimen by using FEM modeling. Since the check with the standard specimen gives not a unique information to the magnetization state we investigate the technique, in which intensity of magnetic field acting on the specimen surface is used to characterize the magnetization. A finite element approach is applied to model the magnetization situation. The effectiveness of the modeling is confirmed by an experiment. © 2003 Elsevier Ltd. All rights reserved.

DOI： 10.1016/S0963-8695(03)00051-3

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0041663563&origin=inward

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年07月

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

M.Katoh,K.Nishio,T.Yamaguchi

Nondestructive Characterizaition of Materials XI　 223 - 231 2003年06月

Modeling of the yoke-magnetization in MFL-testing by finite elements 査読有り

Mitsuaki Katoh,Noritaka Masumoto,Kazumasa Nishio,Tomiko Yamaguchi

NDT & E International 36 ( 6 ) 479 - 486 2003年06月

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年06月

チタンのレーザ溶融部の微細組織観察

山口富子, 西尾一政, 加藤光昭, 恵良秀則, 緒方幸博

溶接学会全国大会講演概要 ( 溶接学会 ) 72 144 - 145 2003年03月

高周波誘導加熱による組織の微細化

斉藤伸彦, 西尾一政, 加藤光昭, 山口富子

溶接学会全国大会講演概要 ( 溶接学会 ) 72 106 - 107 2003年03月

レーザ照射によるチタンの表面改質

山口富子, 西尾一政, 加藤光昭, 恵良秀則

溶接学会全国大会講演概要 ( 溶接学会 ) 71 332 - 333 2002年09月

結晶粒の微細化に及ぼすレーザビーム移動速度の影響

江頭隆一, 西尾一政, 加藤光昭, 山口富子

溶接学会全国大会講演概要 ( 溶接学会 ) 71 334 - 335 2002年09月

真空圧延接合法による異種金属の接合

西尾一政, 加藤光昭, 山口富子, 河野隆之

溶接学会全国大会講演概要 ( 溶接学会 ) 71 F - 23-F-28 2002年09月

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年08月

Materials evaluation of diffusion bonded steel bar and its impact characteristics 査読有り

Mitsuaki Katoh,Kazumasa Nishio,Tomiko Yamaguchi

NDT & E International 35 ( 6 ) 263 - 271 2002年06月

STUDY ON FALSE INDICATION DUE TO DIFFERENCE OF PERMEABILITY IN MAGNETIC TESTING OF STEEL WELDS 査読有り

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

Proceedings of the 6th Far-East Conference on Nondestructive Testing 315 - 320 2002年04月

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