Search Results 1-20 of 32

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  • Heat-Conduction-Type and Keyhole-Type Laser Welding of Ti–Ni Shape-Memory Alloys Processed by Spark-Plasma Sintering

    Bahador Abdollah , Hamzah Esah , Kondoh Katsuyoshi , Tsutsumi Seiichiro , Umeda Junko , Abu Bakar Tuty Asma , Yusof Farazila

    … <p>High-brightness and high-power laser welding with different welding speeds and laser powers was applied to join Ti–51 at%Ni shape-memory alloy, which was fabricated from the elemental pure Ti and pure Ni powders by spark-plasma sintering. … Dendritic microstructures were observed in all the welds except the heat-conduction-type weld with the minimum welding parameters. …

    MATERIALS TRANSACTIONS 59(5), 835-842, 2018

    J-STAGE

  • CHARACTERIZATION OF CHEMICAL COMPOSITIONS OF WELDING MATERIALS USING FABRICATION OF STEEL BRIDGES  [in Japanese]

    MINAMI Kuniaki , KASUYA Tadashi

    … 本報告は,橋梁で一般に使用されるSM490Y(SM520も含む), SMA490W, SM570QおよびSMA570Wの溶接施工で用いられるガスシールドアーク溶接の溶接材料の化学成分を明確にすることを目的として,溶接材料の現状調査を行ったものである.調査は,ソリッドワイヤおよびフラックス入りワイヤを対象とし,638枚の溶接材料ミルシートから,炭素(C), 珪素(Si), マンガン(Mn), 燐(P), 硫黄(S)の主要5元素を調査した.さらに …

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 71(3), 387-401, 2015

    J-STAGE

  • CHARACTERIZATION OF MECHANICAL PROPERTIES OF WELDING MATERIALS USING FABRICATION OF STEEL BRIDGES  [in Japanese]

    MINAMI Kuniaki , YAMAGUCHI Takashi

    … 本報告は,橋梁で一般に使用されるSM490Y (SM520も含む), SMA490W, SM570QおよびSMA570Wの溶接施工で用いられるガスシールドアーク溶接の溶接材料の機械的性質を把握することを目的として,溶接材料の現状調査を行ったものである.調査は,ソリッドワイヤおよびフラックス入りワイヤを対象とし,638枚の溶接材料ミルシートから,引張強度,降伏強度,シャルピー衝撃値および伸びを調査した.また,鋼 …

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 69(2), 222-231, 2013

    J-STAGE

  • CHARACTERISTICS OF TENSILE STRENGTH AND CHARPY ABSORBED ENERGY OF WELDED JOINTS FOR STEEL BRIDGE STRUCTURES  [in Japanese]

    MINAMI Kuniaki , YAMAGUCHI Takashi

    … 本報告は,橋梁で一般に使用されるSM490Y(SM520も含む), SMA490W, SM570QおよびSMA570Wを対象に,橋梁製作会社で実施した溶接施工試験報告書を調査し,引張試験およびシャルピー衝撃試験結果を分析した.その結果,溶接継手部の引張強度は,基準強度に対し十分な強度を有し,破断位置は溶接熱影響部と溶接金属部がほぼ同数で,溶接継手としてはイーブンマッチであることを示した.また,鋼材熱影響 …

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 68(3), 623-634, 2012

    J-STAGE

  • J044073 In the Present Situation of Ti-Ni Shape Memory Alloy Material and the Efforts of the Processing Research  [in Japanese]

    YOSHIMI Yukiharu , KITAMURA Kazuhiro , KYOGOKU Hideki

    For about a half century up to today since the invention of Ti-Ni shape memory alloy, diverse products have been developed. However, compared with iron, copper, aluminum, and other metals and alloys, …

    The Proceedings of Mechanical Engineering Congress, Japan 2011(0), _J044073-1-_J044073-5, 2011

    J-STAGE

  • Characterization of mechanical properties of welded joints on 570N/mm<sup>2</sup> weathering steel

    MINAMI Kuniaki , YOKOYAMA Hideki

    … This report summarized the welding procedure tests using the weathering steel which we carried out in 2006-2007. … In these welding tests, four kinds of weathering steel were employed to fabricate welded joint specimens, which were SMA570WQ, SMA570W-TMC and SMA570W-MODIFY(1%&3% Ni-advanced steel). …

    Kou kouzou rombunshuu 16(61), 61_85-61_91, 2009

    J-STAGE

  • Improvement of Weld Characteristics by Variation in Welding Processes and Parameters in Joining of Thick Wall 304LN Stainless Steel Pipe

    KULKARNI Shrirang , GHOSH Prakriti Kumar , RAY S.

    … Various properties of weld joints of 25 mm thick wall 325 mm O.D, 304LN austenitic stainless steel pipe prepared by using different welding process and conventional V-groove as per AWS specification have been compared. … The welding was carried out by commonly used shielded metal arc welding (SMAW), gas metal arc welding (GMAW) and pulsed current gas metal arc welding (P-GMAW) processes. …

    ISIJ International 48(11), 1560-1569, 2008-11-15

    J-STAGE References (21)

  • Superelastic Analysis of Coil Spring Composed of Shape Memory Alloy and Ferromagnetic Material

    Kawamura Kouji , Seo Kenji , Kusaka Masahiro , Kimura Masaaki

    … 磁気駆動アクチュエータ材料として期待される形状記憶合金(SMA)と強磁性材料から成る複合材をコイルバネ形状として用いた場合の負荷時・除荷時おける超弾性変形を解析する手法について検討した.その解析手法を用いてアクチュエータとして最適なコイルバネ断面形状について検討した. …

    Preprints of the National Meeting of JWS 2006f(0), 191-191, 2006

    J-STAGE

  • Laser Welding of Shape Memory Alloy

    Miyazawa Hajime , Sakuma Yasuaki

    … 溶接構造による新しい高機能機械要素システムの開発を目標に、形状記憶合金(SMA)のレーザ溶接に関する実験的研究を行った。 … レーザはパルスYAGレーザを使用し、SMAは直線記憶済のものと未記憶のものを使用した。 …

    Proceedings of JSPE Semestrial Meeting 2005S(0), 334-334, 2005

    J-STAGE

  • Superelastic Behaviour Analysis of Composite Plate Composed of Shape Memory Alloy and Ferromagnetic Material

    Takeda Yasuaki , Seo Kenji , Kusaka Masahiro , Kimura Masaaki

    … 形状記憶合金(SMA)と強磁性材料の複合材料は磁気駆動高速アクチュエータ材料として期待されている.そこで本研究ではSMAと強磁性材料から成る二層複合板を解析対象とし,まずSMAの応力-ひずみ関係を熱・力学構成方程式を用いて解析した.その結果を用いて複合板の超弾性挙動を解析した. …

    Preprints of the National Meeting of JWS 2005f(0), 191-191, 2005

    J-STAGE

  • Abrasive Wear Behaviour of Fe-30Cr-3.6C Overlays Deposited on Mild Steel

    SHARMA Tarun , MARIA Saurabh , DWIVEDI D. K.

    … Overlays were deposited by a shielded metal arc (SMA) welding process on mild steel using a commercially available hardfacing electrode (Sugar-Arc) of 4.0 mm in diameter. … Overlays were deposited using a welding current of 250 A (DCEN) and welding speed of 15 cm/min. The abrasive wear resistance of overlays in as-welded and heat-treated condition was tested using a pin on disc type wear testing machine against a 320 grade SiC abrasive paper at different normal loads (1-4 N). …

    ISIJ International 45(9), 1322-1325, 2005

    J-STAGE

  • Influence of Pre and Post Weld Heating on Weldability of Modified 9Cr-1MoVNb Steel Plates under SMA and GTA Welding Processes

    GHOSH P. K. , GUPTA P. C. , POTLURI N. B. , GUPTA Yogesh

    Welding of modified 9Cr-1Mo(V-Nb) steel plates has been carried out by shielded metal arc (SMA) and gas tungsten arc (GTA) welding processes. … The welding has been carried out using different preheating temperatures followed by employing post weld heat treatment (PWHT) at different temperatures. …

    ISIJ International 44(7), 1201-1210, 2004-07-15

    J-STAGE References (14)

  • Study of Practical Use of Welding Consumables for Steel of Hot Dip Galvanizing Bath  [in Japanese]

    SUZUKI Kiyoshi , AIHARA Shuji , ICHIKAWA Kazutoshi , YAJIMA Hiroshi , SHINOZAKI Kenji

    … This study was carried out to select suitable welding methods and welding consumables used for constructing a galvanizing bath. … The shielded metal arc (SMA) and gas shield arc weldings (GMA) were used with a covered electrode (E1) and solid and flux cored wires (F1,F2 and F3). … Strength at the elevated temperature of deposited metals by GMA welding was higher than that by SMA welding. …

    Quarterly journal of the Japan Welding Society. 18(1), 119-125, 2000-02-05

    References (13)

  • Study of Practical Use of Welding Consumables for Steel of Hot Dip Galvanizing Bath.  [in Japanese]

    SUZUKI Kiyoshi , AIHARA Shuji , ICHIKAWA Kazutoshi , YAJIMA Hiroshi , SHINOZAKI Kenji

    … This study was carried out to select suitable welding methods and welding consumables used for constructing a galvanizing bath. …

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 18(1), 119-125, 2000

    J-STAGE

  • Development of In-core Monitor Housing Replacement Technology  [in Japanese]

    OYAMADA Osamu , FURUKAWA Hideyasu , FUJIMORI Haruo , YAMASHITA Hironobu , MATSUMOTO Jun , JACOBSON B. A.

    … Major procedure steps are removal of the existing ICM housing, welding and trimming of a new weld buildup, welding of a new ICM housing, and joint of a new ICM guide tube with the ICM housing using shape memory alloy couplings. …

    Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 41(10), 1075-1083, 1999-10-30

    J-STAGE References (3)

  • Strength and Reliability of Welding Joint of Material for Hot Dip Galvanizing Bath(First Report)-Characteristic of Elevated Temperature Strength and Liquid Metal Embrittlement in Liquid Zinc of Welded Joint-  [in Japanese]

    SUZUKI Kiyoshi , AIHARA Shuji , ICHIKAWA Kazutoshi , YAJIMA Hiroshi , SHINOZAKI Kenji , YAMAMOTO Motomichi

    … This study was carried out to select suitable welding methods and welding consumables used for constructing a galvanizing bath. … The shielded metal arc (SMA) and gas shield arc weldings (GMA) were used with a covered electrode (E1) and solid and flux cored wires (F1, F2 and F3). … Strength at the elevated temperature of deposited metals by GMA welding was higher than that by SMA welding. …

    Transactions of the West-Japan Society of Naval Architects 98, 269-277, 1999-09-04

    References (9) Cited by (3)

  • The Influence of Titanium Additions and Interpass Temperature on the Microstructures and Mechanical Properties of High Strength SMA Weld Metals

    JOHNSON M. Q. , EVANS G. M. , EDWARDS G. R.

    … The influence of titanium additions and interpass temperature on the microstructures and properties in low carbon-1.5Mn-3Ni-0.5Mo multiple pass steel weld metals produced using the shielded metal arc welding (SMAW) process was studied. …

    ISIJ International 35(10), 1222-1231, 1995-10-15

    J-STAGE References (64)

  • The three dimensional distribution of chromium and nickel alloy welding fumes.

    Mori Tadashige , Matsuda Akira , Akashi Shinji , Ogata Masana , Takeoka Kiyoshi , Yoshinaka Masaru

    … <p>In the present study, the fumes generated from manual metal arc (MMA) and submerged metal arc (SMA) welding of low temperature service steel, and the chromium and nickel percentages in these fumes, were measured at various horizontal distances and vertical heights from the arc in order to obtain a three dimensional distribution. … The MMA welding fume concentrations were significantly higher than the SMA welding fume concentrations. …

    Acta Medica Okayama 45(4), 233-240, 1991-08

    IR DOI

  • The three dimensional distribution of chromium and nickel alloy welding fumes.

    Mori Tadashige , Matsuda Akira , Akashi Shinji , Ogata Masana , Takeoka Kiyoshi , Yoshinaka Masaru

    … <p>In the present study, the fumes generated from manual metal arc (MMA) and submerged metal arc (SMA) welding of low temperature service steel, and the chromium and nickel percentages in these fumes, were measured at various horizontal distances and vertical heights from the arc in order to obtain a three dimensional distribution. … The MMA welding fume concentrations were significantly higher than the SMA welding fume concentrations. …

    Acta Medica Okayama 45(4), 233-240, 1991-08

    IR DOI

  • Investigation of fracture toughness of cryogenic high strength stainless steel weld deposits.  [in Japanese]

    Satoh Hiroshi , Matsumoto Toshimi , Funamoto Takao , Wadayama Yoshihide

    … The weld deposits of 17.5Cr-16.5Ni-6.5Mn-2.3Mo system was previously investigated using SMA welding process for the welding construction of superconducting coil container which was used at cryogenic temperature. … The combination of yield strength and fracture toughness was not sufficiently attained by the SMA weld deposits. …

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 7(3), 385-390, 1989

    J-STAGE

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