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Journal Articles

Transmission imaging and strain mapping in the vicinity of internal crack tip using synchrotron white X-ray

Shibano, Junichi*; Kajiwara, Kentaro*; Kiriyama, Koji*; Shobu, Takahisa; Suzuki, Kenji*; Nishimura, Suguru*; Miura, Setsuo*; Kobayashi, Michiaki*

Materials Science Forum, 638-642, p.2476 - 2481, 2010/01

Journal Articles

Study on imaging and strain mapping in the vicinity of internal crack tip using synchrotron white X-ray

Shibano, Junichi*; Kajiwara, Kentaro*; Kiriyama, Koji; Shobu, Takahisa; Suzuki, Kenji*; Nishimura, Suguru*; Miura, Setsuo*; Kobayashi, Michiaki*

Zairyo, 57(7), p.667 - 673, 2008/07

Journal Articles

Comparison of boronized wall in LHD and JT-60U

Ashikawa, Naoko*; Kizu, Kaname; Yagyu, Junichi; Nakahata, Toshihiko*; Nobuta, Yuji; Nishimura, Kiyohiko*; Yoshikawa, Akira*; Ishimoto, Yuki*; Oya, Yasuhisa*; Okuno, Kenji*; et al.

Journal of Nuclear Materials, 363-365, p.1352 - 1357, 2007/06

 Times Cited Count:10 Percentile:57.98(Materials Science, Multidisciplinary)

no abstracts in English

Oral presentation

Strain measurement and computed tomography of cracking zone in steel material by high energy white synchrotron radiation

Kiriyama, Koji; Shibano, Junichi*; Kajiwara, Kentaro*; Shobu, Takahisa; Suzuki, Kenji*; Kaneko, Hiroshi; Nishimura, Suguru*; Arai, Takayuki*

no journal, , 

Residual stress measurement is important to understand SCC (Stress Corrosion Cracking) process. In this study, CT (Computed Tomography) imaging and inner strain mapping of steel material (alpha-Fe) have performed at BL28B2 at SPring-8. The result showed that artificial cracking in the sample was clearly measured by CT and that strain maps quite correspond to CT image. Therefore, these methods are very effective tool to measure an inner state of steel material.

Oral presentation

Study of strain measurement of austenitic stainless steel using synchrotron white X-ray

Kiriyama, Koji; Shibano, Junichi*; Shobu, Takahisa; Suzuki, Kenji*; Nishimura, Suguru*; Kaneko, Hiroshi

no journal, , 

Austenitic stailess steel consist of large grains about 50 to 100 $$mu$$m in size. Therefore, it is difficult to measure strain of the steel using X-ray diffraction. In this study, a new analysis method applied to X-ray profiles of the steel by using synchrotron white X-ray. The results showed that average strain mapping of austenitic Fe(311), (420), (620), which are similar Young modulus, was suitable to predicted that, althogh strain mappings by using single planes were not reasonable. This suggested that it would be possible to measure strains in small area, for example crack tips, at austenitic stainless steel.

Oral presentation

Stress measurement of welding zone in steel material by high energy white synchrtron radiation

Kiriyama, Koji; Shibano, Junichi*; Nishimura, Suguru*; Shobu, Takahisa; Kaneko, Hiroshi; Kajiwara, Kentaro*; Suzuki, Kenji*

no journal, , 

no abstracts in English

Oral presentation

Measurement of stress and imaging in the vicinity of fatigue crack in steel material using synchrotron radiation white X-rays

Kiriyama, Koji; Shibano, Junichi*; Kajiwara, Kentaro*; Shobu, Takahisa; Suzuki, Kenji*; Kaneko, Hiroshi; Nishimura, Suguru*; Arai, Takayuki*; Miura, Setsuo*; Kobayashi, Michiaki*

no journal, , 

Residual stress measurement is important to understand Stress Corrosion Cracking process. In this study, measurements of imaging and inner stress mapping around a crack-tip in steel material (alpha-Fe) have performed at beam-line BL14B1 and BL28B2 at SPring-8. The results showed that artificial cracking in the sample was clearly measured by imaging and that stress maps quite correspond to the result of imaging. Therefore, these methods are very effective tool for measurement of inner state of steel material.

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