Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Seung Hwan C. Park"'
Autor:
Abhijeet Dhal, Priyanka Agrawal, Ravi Sankar Haridas, Supreeth Gaddam, Aishani Sharma, Digvijay Parganiha, Rajiv S. Mishra, Hirotsugu Kawanaka, Shinji Matsushita, Yusuke Yasuda, Seung Hwan C. Park, Wei Yuan
Publikováno v:
Metals, Vol 13, Iss 2, p 420 (2023)
In this paper, Inconel 718 (IN718) superalloy was processed by laser powder-bed fusion additive manufacturing (L-PBFAM), followed by heat treatment. High-resolution nanoindentation was used to investigate the complex deformation mechanisms that occur
Externí odkaz:
https://doaj.org/article/9657e98afcc04254855636cf4d61a387
Autor:
null Seung Hwan C. PARK, Akihide TANAKA, Isamu TAKAHASHI, Masanori MIYAGI, Naoya OKIZAKI, Kazutoshi SUGIE, Makoto OGATA
Publikováno v:
JOURNAL OF THE JAPAN WELDING SOCIETY. 91:244-249
Publikováno v:
MATERIALS TRANSACTIONS. 60:2003-2007
Autor:
Kiyohito Ishida, Satoshi Hirano, Yutaka S. Sato, Satoshi Hata, Hiroyuki Kokawa, Itto Sugimoto, Seung Hwan C. Park
Publikováno v:
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY. 36:26-30
Autor:
C. Z. Nie, Satoshi Hirano, Hiroyuki Kokawa, P. Hua, S. Moronov, Seung Hwan C. Park, Yutaka S. Sato
Publikováno v:
Science and Technology of Welding and Joining. 19:76-81
Friction stir welding was employed for joining of 12Cr heat resistant ferritic steel. Microstructure and mechanical properties in the obtained welds were examined and their relationship was established. The stir zone microstructure was found to consi
Publikováno v:
Acta Materialia. 61:3465-3472
The structural response of an austenitic stainless steel single crystal to friction stir welding (FSW) was examined. The microstructural changes induced by FSW were found to essentially vary around the rotating tool. This effect was attributed to var
Autor:
Sergey Mironov, Jong Jin Jeon, Satoshi Hirano, Seung Hwan C. Park, Hiroyuki Kokawa, Yutaka S. Sato
Publikováno v:
Metallurgical and Materials Transactions A. 44:3157-3166
The high-resolution electron backscatter diffraction (EBSD) technique was used to study the grain boundary development and texture evolution during friction stir welding (FSW) in a single-crystal austenitic stainless steel. Strain-induced crystal rot
Autor:
Sergey Mironov, Yoshito Nagahama, Yutaka S. Sato, Seung Hwan C. Park, Hiroyuki Kokawa, Satoshi Hirano
Publikováno v:
Scripta Materialia. 67:241-244
Friction stir welding was applied to a zirconium alloy, Zircaloy-4, using a Co-based alloy tool. Zircaloy-4 was successfully welded, and a shiny, smooth surface was obtained. FSW produced a defect-free weld with a fine equiaxed grain structure in the
Publikováno v:
Materials Science Forum. :990-995
Bobbin FSW technique is assessed in terms of process productivity and robustness considering the metallurgical and mechanical qualities of the joint. Several different designed bobbin tools were applied to aluminium A6xxx alloy extrusions, at feed ra
Autor:
Hiroyuki Kokawa, Shinya Imano, Seung Hwan C. Park, Toshihiro Omori, Kiyohito Ishida, Yutaka S. Sato, Satoshi Hirano
Publikováno v:
Materials Science Forum. :996-1001
The authors have developed a new friction-stir welding (FSW) tool that enables to weld high-softening-temperature materials (HSTMs), such as steels, titanium and zirconium alloys. The new tool is made of a Co-based heat-resistant alloy strengthened b