論文
2 次元検出器による内部ひずみ評価法
著者:
鈴木 賢治,Kenji SUZUKI,菖蒲 敬久,Takahisa SHOBU,城 鮎美,Ayumi SHIRO,豊川 秀訓,Hidenori TOYOKAWA
発刊日:
公開日:
キーワードタグ:
An area detector technique has to be applied to the strain scanning method for materials with coarse grains. A new rotating slit system was designed for a 2-dimensional (2D) detector strain scanning method. The rotating slit system can focus the 2D detector on the center of the goniometer, and the gauge volume is made by the rotating slit system. The stress measurements were examined with the rotating slit and 2D detector. The measured diffraction spots shifted for the 2D strain scanning. The magnitu...
英字タイトル:
Evaluation of Internal Stresses using Area Detectors
論文
オーステナイト系ステンレス鋼の塑性変形による微視的残留応力
著者:
鈴木 賢治,Kenji SUZUKI,菖蒲 敬久,Takahisa SHOBU
発刊日:
公開日:
キーワードタグ:
Austenitic stainless steel (SUS316L) was used as material of the specimen. Tensile deformation was applied to the plate specimen, the range of plastic strains was from 0% to 55%. The Vickers hardness of the specimens corresponded to the plastic strain. The residual macrostress was measured by Mn-Kα radiations. The residual macrostress of the annealed specimen had a small compression and changed into a tension after tensile plastic deformation. The specimen with 1% plastic strain showed the maximum ten...
英字タイトル:
Residual Microstress of Austenitic Stainless Steel by Plastic Deformation
論文
オーステナイト系ステンレス鋼の高ひずみ速度による 微視的残留応力
著者:
鈴木 賢治,Kenji SUZUKI,田邊 裕治,Yuji TANABE,菖蒲 敬久,Takahisa SHOBU
発刊日:
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キーワードタグ:
Austenitic stainless steel (SUS316L) was used as specimen material, and the plate specimens were deformed plastically with a wide range of strain rates (6.67×10-5~ 6.70×102 /s). The residual micro-stress for each lattice plane was measured with hard synchrotron X-rays. The residual macro-stress due to tensile deformation de- pended on strain rate. The residual micro-stresses varied from tension to compression, depending on the dif- fraction elastic constant. The soft lattice plane had tensile residual...
英字タイトル:
Residual micro-stresses in austenitic stainless steel due to high strain rate
論文
回折斑点追跡法によるオーステナイト系 ステンレス鋼の溶接残留応力の評価
著者:
鈴木 賢治,Kenji SUZUKI,菖蒲 敬久,Takahisa SHOBU,城 鮎美,Ayumi SHIRO,張 朔源,Shuoyuan ZHANG,西川 聡,Satoru NISHIKAWA
発刊日:
公開日:
キーワードタグ:
A diffraction spot trace method (DSTM) was developed to measure internal stresses of materials with coarse grains. The DSTM was applied to light metals, such as aluminum alloy and magnesium alloy. In this study, validity of the DSTM was examined using high energy synchrotron X-rays of 70 keV. The specimen was a welded plate of austenitic stainless steel (SUS316L). The thickness of the specimen was 9 mm. The improved rotating slit-system was used, and PILATUS was used as an area detector. It was diffi...
英字タイトル:
Evaluation of Welding Residual Stresses in Austenitic Stainless Steel Using Diffraction Spot Trace Method
論文
異種材溶接継手の残留応力解析
著者:
鈴木 賢治,Kenji SUZUKI,山岸 葵,Aoi YAMAGISHI,西川 聡,Satoru NISHIKAWA,菖蒲 敬久,Takahisa SHOBU
発刊日:
公開日:
キーワードタグ:
In this study, a residual stress distribution in a dissimilar plate butt-welded joint was simulated by a thermo-elastic finite element method. The base metal was the austenitic stainless steel SUS316L. The other base metal was nickel super-alloy NCF600, and the weld metal was the alloy 82 (YNiCr-3). The dimensions of the plate butt-welded joint were a width of 200 mm, a length of 250 mm and a thickness of 25 mm. The welding joint was fabricated by TIG welding with 22 passes. For comparison, the residu...
英字タイトル:
Residual Stresses in Dissimilar Metal Joint by Multi-pass Welds