Preprints of the National Meeting of JWS

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Preprints of the National Meeting of JWS

Displaying 1-50 of 109 articles from this issue

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Reseach on weld pool formation by two-electrode TIG arc

Yosuke OGINO, Junichi KAWATA, Kazufumi NOMURA, Yoshinori HIRATA

Session ID: 101
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.4.0

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3D Model Numerical Anarysis of TIG-MIG Hybrid Welding Process

Shuhei Kanemaru, Tomoaki Sasaki, Toyoyuki Satou, Hisashi Mishima, Shin ...

Session ID: 102
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.6.0

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Development of deep penetration&low spatter hybrid tandem GMAW process

YIMIN YUAN, KEI YAMAZAKI, REIICHI SUZUKI

Session ID: 103
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.8.0

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Research on Micro discharge

Mingon PARK, Tatsuma URABE, Yoshinori HIRATA

Session ID: 104
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.10.0

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Numerical Analysis of Atmosphere mixing in GTA Welding

Shinji Kodama, Kazuki Sugiura, Yoshihiro Tsujimura, Manabu Tanaka, Tad ...

Session ID: 105
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.12.0

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Expansion of Application Field for Electromagnetic Controlled Molten Pool Process

Control of penetration bead shape in overhead position welding

Koki Tamashiro, Yukio Manabe, Shoichi Matsuda, Yasushi Tanahara, Toru ...

Session ID: 106
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.14.0

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Electromagnetic Controlled Molten Pool Welding Process was researched for the purpose of penetration bead shape control. The process was proved experimentally for improving the penetration bead in overhead position.

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Study of MAG Welding without Steel-backing for Column-to-beam Connection Joints of Steel Structures

Takafumi Sasaki, Tetsuo Suga, Tetsuya Hashimoto, Takuya Nagai, Reiichi ...

Session ID: 107
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.16.0

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The MAG welding procedure without steel-backing for column-to-beam connection joints of steel structures has been studied. This method is characterized by two-pass overhead welding which uses FCW for the back side. Since the toe shape of back bead is good in addition to the absence of a stress concentration part of steel-backing, the fatigue strength of welded joints has been found to be improved, compared with the conventional MAG welding process with steel-backing.

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Hydrogen diffusion of gamma containing weld metals and hydrogen distribution in the welded joint

Tadashi Kasuya, Yuji Hashiba, Hiroshige Inoue, Shu-ichi Nakamura, Keni ...

Session ID: 112
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.26.0

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Hydrogen evolution in the gamma containing weld metals was experimentally investigated to determine the diffusion properties. Using these properties, numerical investigations were conducted for hydrogen distribution in the one pass welded joint to consider the holding period of the cold cracking test pieces.

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Weldability of Thick High-Tensile Strength Steel by Laser-Arc Hybrid Welding

Qinglong Pan, Kwang-Woon Jung, Yousuke Kawahito, Seiji Katayama

Session ID: 116
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.34.0

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A Proposal of Measure for Evaluating Cold Cracking Sensitivity on Laser-Arc Hybrid Welded Joints of High Strength Steel in Mechanics

You-Chul KIM, Mikihito HIROHATA, koutarou Inose

Session ID: 117
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.36.0

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A series of experiments and the simulation by the thermal elastic-plastic analysis were performed on the laser-arc hybrid welded joints of high strength steel in order to propose the measure in mechanics for evaluating the cold cracking sensitivity and verifying its validity.

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Heat input on anode from plasma jet

yoshihiro yamaguchi, yusuke katada, takeru itou, yoshihiko uesugi, yas ...

Session ID: 201
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.46.0

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Heat input on anode from plasma jet was measured by water cooled copper. The measurements were conducted in various conditions to investigate interactions between plasma jet and material.

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Characteristics of Fume Generated During Laser Cutting of Mild Steel

Kazuki Shimada, Kazuomi Kusumoto

Session ID: 202
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.48.0

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This study describes the influence of cutting conditions (laser power, cutting speed, etc) on fume generated during CO2 laser cutting of mild steel. Then, it was found that the laser cutting is very low in fume compared with plasma cutting.

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The cutting method of the thick plate which combined laser and water jet

Patr 1 Observation and consideration of a cutting phenomenon

katsunori shiihara, itaru chida, miyuki akiba, rie sumiya

Session ID: 203
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.50.0

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Microstructures at Heat Affected Zone of High Silicon Ductile Cast Iron

Takuo UMETANI, Tomiko YAMAGUCHI, Hidenori ERA, Kazumasa NISHIO, Hiroyo ...

Session ID: 204
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.52.0

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Development of Solid wire for YP385 steel

Shun Izutani, Ryohei Kuriyama, Reiichi Suzuki

Session ID: 205
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.54.0

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Prediction of Toughness in HAZ produced by Consistent Layer Technique Temper Bead Welding using Neural Network

Masato Sasa, Lina Yu, Kenta Ohnishi, Masashi Kameyama, Shinro Hirano, ...

Session ID: 206
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.56.0

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Prediction system of toughness has been proposed for heat affected zone of temper bead welding using neural network. It is found that the predicted toughness calculated by this system is in a good agreement with the measured results.

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Prediction System for Hardness in HAZ Produced by General Temper Bead Welding Techniques

LINA YU, Kenta Ohnishi, Masato Sasa, Masashi Kameyama, Shinro Hirano, ...

Session ID: 207
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.58.0

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Instead of PWHT, temper bead welding has been applied in repairing or maintenance operation of nuclear reactor pressure vessel fabricated with low-alloy steel. In the present study, the hardness prediction system of general temper bead welding techniques has been constructed using a neural network. Therefore, the hardness in HAZ during general temper bead welding techniques can be predicted.

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Analysis on MIG Welded Interface Between Aluminum and Steel Sheet

Toshihiko FUKUDA, Eisuke NAKAYAMA, Hitomi NISHIBATA

Session ID: 208
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.60.0

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Texture analysis around interface of Al alloy builds fabricated by ultrasonic additive manufacturing

Hiromichi Fujii, Saki Shimizu, Yutaka Sato, Hiroyuki Kokawa, Sriraman ...

Session ID: 209
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.62.0

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Development of Arc Coating and Patterning Processes by Using Nanoparticles Slurry

Soshu Kirihara, Yasunori Uehara, Yousuke Itakura, Satoko Tasaki

Session ID: 210
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.64.0

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Nanoparticles Slurry Supply for Plasma Spray to Create Fine Coated Layer

Yusuke Itakura, Satoko Tasaki, Soshu Kirihara

Session ID: 211
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.66.0

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Evaluation of Microstructure and Property of Sintered Silver Joint Using Ag₂O paste

Shinya Takata, Tomohiro Yagishita, Tomo Ogura, Akio Hirose

Session ID: 212
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.68.0

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The microstructure and the property of the sintered silver joint using Ag₂O paste were evaluated. The relationship between the bonding strength and the microstructure was discussed. The reliability of the superior strength joint was evaluated.

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FORMATION OF INTERMETALLIC COMPOUNDS THROUGH GAS TUNNEL TYPE PLASMA TORCH

Akira Kobayashi, Yugeswaran Subramanium

Session ID: 213
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.70.0

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Effect of Ni and Co Elements in Filler Metals on Brazing of Cemented Carbide

Shinji Yaoita, Takehiko Watanabe, Tomohiro Sasaki, Atsusi Yanagisawa

Session ID: 214
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.72.0

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Dissimilar brazing of sialon to WC-Co alloy using an activated laser brazing

Kimiaki Nagatsuka, Shouitirou Yoshida, Yoshihisa Sechi, Ninshu MA, Kaz ...

Session ID: 215
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.74.0

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The laser brazing of sialon to WC-Co alloy was carried out using Ag-Cu-Ti braze metal. The effect of contents of Ti as an activator was investigated. The shear strength of the joint increased with increasing Ti contents in the braze metal up to 1.7mass%Ti.

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Brazing of C/C composites and heat resistant alloy with interlayer metal

Toshi-Taka Ikeshoji, Tetsutaro Amanuma, Akio Suzumura, Takahisa Yamaza ...

Session ID: 216
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.76.0

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If C/C composites can form the joint with the heat resistant alloy, their application would expand. But the large mismatch in CTE of C/C and that of the heat resistant alloy prevent the formation of sound joints. In this research, Ni-based brazing filler and the interlayer is applied in brazing of C/C, which will relax the residual stress in the brazing interface. The obtained brazed joint was evaluated by the shear fracture test and SEM observation of its microstructure.

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Braizing Characteristics between SCM435 and Cemented Carbides using Amorphous Fillers

Mitsuru NAKAMURA, Kazuya ICHINOHE

Session ID: 217
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.78.0

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Braizing Characteristics between SCM435 and Cemented Carbides using Amorphous Fillers

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Visualization of dissimilar metal joining of aluminum alloys to steel

Kazumasa Kaittoku, Tsuyoshi Matsumoto, Yasuhiro Nagata, Toru Hashimura ...

Session ID: 218
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.80.0

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Visualization of dissimilar metal joining of aluminum alloys to steel

Tsuyoshi Matsumoto, Kazumasa Kaitoku, Yasuhiro Nagata, Toru Hashimura, ...

Session ID: 219
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.82.0

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Trial of Skill Extraction during MIG Welding of Aluminum Alloy using Analytic Hierarchy Process

Naoki Seto, Kazuo Mori, Shingo Hirose

Session ID: 220
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.84.0

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Aluminum alloy is widely used on cars or airplane because this alloy is light and strong. However, welding of aluminum alloy is often performed by MIG welding by welding expert. In this case, welding quality is depended on expert's skill. In this study, the authors tried to extract 10 welding experts' skill for aluminum welding using Analytic hierarchy process. we will introduce the results of this trial.

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Fabrication of Fine Thermocouples for Super-high Temperature Measurement by Non-contact Discharge Welding

TAKESHI KONNO, MITSURU EGASHIRA, MIKIHIKO KOBAYASHI

Session ID: 221
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.86.0

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The improvement method of the performance of electro deposition coating and corrosion resistance in arc welding joint for automobile

Ryu Kasai, Reiichi Suzuki

Session ID: 222
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.88.0

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Blowholes generate phenomenon in GMAW of galvanized steel sheet

KEI YAMAZAKI, KEIICHIRO YANAGI, SYUN IZUTANI, REIICHI SUZUKI, KAZUKI N ...

Session ID: 223
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.90.0

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lowering of Porosity on zinc-coated steel plate welding

Shun Izutani, Kei Yamazaki, Reiichi Suzuki, Kazuo Nakamura, Yuji Ueda, ...

Session ID: 224
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.92.0

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Blowholes reduction in GMAW of galvanized steel sheet

Part2:Influence of shielding gas and pulse current control

Kazuki Nakamura, Yuji Ueda, Toshiro Uezono, Shun Izutani, Keiichiro Ya ...

Session ID: 225
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.94.0

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Spatter reduction in pulsed MAG welding of galvanaized steel sheet

Yuji Ueda, Kazuki Nakamura, Toshiro Uezono, Shun Izutani, Keiichiro Ya ...

Session ID: 226
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.96.0

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Effect of Si content on gap tolerance of lap fillet arc welding

Yoshinari Ishida, Shinji Kodama, Yasunobu Miyazaki

Session ID: 227
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.98.0

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Development of welding method forStainless Steel for Automotive Exhaust System combined pure Ar-MIG and flux-cored wire

Minoru Miyata, Reiichi Suzuki, Shun Izutani

Session ID: 228
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.100.0

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Study on Arc Phenomena of Submerged Arc Welding with Observation Method in Flux

Fundamental Study on Submerged Arc Welding (Report2)

Kazuki KASANO, Shingo MATSUNOBU, Masato UCHIHARA, Hiroyuki HIRATA, Kaz ...

Session ID: 229
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.102.0

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We study on arc phenomena of Submerged Arc Welding with observation method in flux.

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Application of Visual Sensor to Plasma Welding System

Takahiro Godo, Taro Takanashi, Satoshi Yamane, Hikaru Yamamoto, Toru N ...

Session ID: 230
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.104.0

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Analysis of grain structure of solidification in stainless steel weld with time-resolved X-ray diffraction measurements

hidenori terasaki, yu-ichi komizo

Session ID: 301
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.110.0

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Precipitation of Sigma Phase in SUS316FR Weld Metal

Repair Welding of Type 316FR Stainless Steel for Fast-Breeder Reactors (Part 1)

Kazuyoshi Saida, Koji Terashima, Hayato Baba, Hiroyuki Ogiwara, Kazuto ...

Session ID: 302
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.112.0

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Kinetics of the sigma phase precipitation in the SUS316FR weld metal was investigated. Sigma phase was precipitated in ferritic phase and was followed by the Johnson-Mehl equation. Kinetic approach suggested the possibility that sigma phase would be precipitate in the weld metal at the service exposure condition.

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Solution of mechanism to prevent solidification crack in fully austenitic weld metal containing high Phosphorus with crystallization of Cr based carbide using Phase field method

-Development of weld crack of high alloyed steel with high Phosphorus (4)-

Takahiro Osuki, Kouji Moriguchi, Akira Seki, Hiroyuki Hirata, Kazuhiro ...

Session ID: 303
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.114.0

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Stress Relaxation Cracking Properties of Weld Metal of High Strength W Bearing Austenitic Heat Resistant Steel

HIROYUKI HIRATA, KANA JOTOKU, KAZUHIRO OGAWA, MITSURU YOSHIZAWA, ATSUO ...

Session ID: 304
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.116.0

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Grain growth behavior analysis of low alloy steel using phase-field method

Development of method to predict grain growth behavior at Heat Affected Zone(1)

NAOTO FUJIYAMA, TAKAHIRO OSUKI, AKIRA SEKI, HIROYUKI HIRATA, KAZUHIRO ...

Session ID: 305
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.118.0

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Analysis for acicular ferrite in low carbon weld metals

Atsushi Takada, Hidenori Terasaki, Yu-ichi Komizo

Session ID: 306
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.120.0

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Modeling of deoxidation process on submerged arc weld metal

hirohisa tanabe, hiroyuki hirata, kazuhiro ogawa, masahiko hamada

Session ID: 307
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.122.0

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We researched about modeling of deoxidation process on submerged arc weld metal.

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Effect of laser peening condition under low pulse energy on residual stress and fatigue lives

Yoshihiro SAKINO, Yuji SANO, Rie SUMIYA, You-Chul KIM

Session ID: 308
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.124.0

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The effect of peening on the post-weld heat treatment (PWHT) cracking of the Ni-base superalloy

TAKEHISA HINO, WATARU KONO, MASAHIRO SAITO, AKIRA TANAKA, KAZUYOSHI NA ...

Session ID: 309
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.126.0

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Effect of various factor on fatigue strength of the shot peened aluminium alloy

Takuma Mori, Masayoshi Hasegawa, Hiroaki Suzuki

Session ID: 310
Published: 2012
Released on J-STAGE: June 20, 2012

DOIhttps://doi.org/10.14920/jwstaikai.2012s.0.128.0

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