Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Chansun Shin"'
Autor:
Sangeun Kim, Minkyu Ahn, Jinwoo Park, Gyeongsik Yu, Jinhyuk Kim, Hyung-Ha Jin, Chang-hoon Lee, Byung-Yong Yu, Weon Cheol Lim, Chansun Shin
Publikováno v:
Nuclear Materials and Energy, Vol 39, Iss , Pp 101652- (2024)
This study explores the effects of Fe ion irradiation and helium implantation on the mechanical and microstructural behaviors of K-RAFM steels. Through micropillar compression tests, we observed irradiation hardening, which manifested as an increase
Externí odkaz:
https://doaj.org/article/8e0f505415c2474da2dc487a0b7fed19
Autor:
Joonoh Moon, Gyuyeol Bae, Bo-Young Jeong, Chansun Shin, Min-Ji Kwon, Dong-Ik Kim, Dong-Jun Choi, Bong Ho Lee, Chang-Hoon Lee, Hyun-Uk Hong, Dong-Woo Suh, Dirk Ponge
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract The degradation of mechanical properties caused by grain coarsening or the formation of brittle phases during welding reduces the longevity of products. Here, we report advances in the weld quality of ultra-high strength steels by utilizing
Externí odkaz:
https://doaj.org/article/1a06d64b1bc94bbc947de94beac3cdc4
Autor:
Jinhyuk Kim, Gyeongsik Yu, Sangeun Kim, Jinwoo Park, Minkyu Ahn, Jun-Ho Chung, Chang-Hoon Lee, Chansun Shin
Publikováno v:
Metals, Vol 14, Iss 4, p 374 (2024)
This study investigates the microstructure and nano-hardness distribution across the thickness of an H-section steel beam, specifically designed for seismic and fire resistance and fabricated using a quenching and self-tempering process. The beam dim
Externí odkaz:
https://doaj.org/article/8999b4f734904d42b0814992b741aad6
Autor:
Minkyu Ahn, Jinwoo Park, Gyeongsik Yu, Sangeun Kim, Dong-Keun Cho, Hyung-Ha Jin, Chansun Shin
Publikováno v:
Materials, Vol 17, Iss 2, p 350 (2024)
This study presents an experimental approach to address sulfur-induced embrittlement in copper alloys. Building on recent theoretical insights, we identified specific solute elements, such as silicon and silver, known for their strong binding affinit
Externí odkaz:
https://doaj.org/article/f7fcea9c28414c26abc8035dae877eeb
Autor:
Hyo-Haeng Jo, Chansun Shin, Joonoh Moon, Jae Hoon Jang, Heon-Young Ha, Seong-Jun Park, Tae-Ho Lee, Bong Ho Lee, Jun-Ho Chung, John G. Speer, Kip O. Findley, Taylor R. Jacobs, Chang-Hoon Lee, Sung-Dae Kim
Publikováno v:
Materials & Design, Vol 194, Iss , Pp 108882- (2020)
Fire resistance of structural steels used in buildings is typically evaluated based on the ratio of the yield strength at 600 °C to that at room temperature. Fire-resistant steel shows a yield strength ratio of more than 2:3 between 600 °C and room
Externí odkaz:
https://doaj.org/article/404cf278fc1f4dd4896f6276fd4cefcb
Autor:
Seong-Yong Cho, Chang-Hoon Lee, Joonoh Moon, Hyung Ha Jin, Sangeun Kim, Jungwoo Heo, Hyeongchul Kim, Chansun Shin
Publikováno v:
Journal of the Korean Physical Society. 77:32-37
Surface swelling caused by He implantation was studied for newly-developed Ti/Ta-added reduced-activation ferritic/martensitic (RAFM) steels. Post-implantation annealing at 623 K for 2 h of He-implanted RAFM-steel samples led to surface-step formatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a9ff1798082d043f84714896e03c27e
https://doi.org/10.3938/jkps.77.32
https://doi.org/10.3938/jkps.77.32
Autor:
Ki Ju Kim, Yiran Jiang, Hwang Sik Yun, Moonsub Shim, Tae Hyeon Lim, Pilwoo Lee, Tae-Sik Yoon, Yeongho Choi, Young Gwang Kim, Hyun Ho Lee, Keonwon Beom, Ki-Bum Kim, Minsu Kim, Bong Hoon Kim, Jaehoon Lim, Seong-Yong Cho, Minju Kim, Sang-Hyun Lee, Chansun Shin, Kyeongchan Noh, Nuri Oh
Publikováno v:
Current Applied Physics. 19:998-1005
The aging of ZnO nanoparticles in quantum dot light-emitting diode (QD-LED) structures was studied. Coarsening of as-synthesized ZnO nanoparticles is observed in both solution and thin film structures, which potentially deteriorates the performance o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c1876b0844ca3287158af6a1408575f
https://doi.org/10.1016/j.cap.2019.05.016
https://doi.org/10.1016/j.cap.2019.05.016
Autor:
Joonoh Moon, Hwanuk Guim, Chansun Shin, Sangeun Kim, Chang-Hoon Lee, Hyung-Ha Jin, Jungwoo Heo
Publikováno v:
Journal of Nuclear Materials. 512:184-192
Radiation-induced hardening of newly developed Ti/Ta-added reduced activation ferritic-martensitic (RAFM) steel is evaluated by combining self-ion irradiation and cross-sectional micropillar compression tests. 500-nm micropillars were fabricated on a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0757f77707e9221b044e703062c4712
https://doi.org/10.1016/j.jnucmat.2018.10.004
https://doi.org/10.1016/j.jnucmat.2018.10.004
Publikováno v:
Metals and Materials International.
A spring beam in a miniature electrical switch enables the two electrical contacts to either close or separate and supplies both current and necessary contact pressure between the contacts. Arc erosion and material transfer between the contacts occur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d9e2e3c7c217c846037dc602f374469
https://doi.org/10.1007/s12540-019-00602-x
https://doi.org/10.1007/s12540-019-00602-x
Autor:
Dongchan Jang, Hyung-Ha Jin, Chansun Shin, Junhyun Kwon, Sangyeob Lim, Hwanuk Guim, Sangeun Kim, Jungwoo Heo
Publikováno v:
Journal of Nuclear Materials. 503:263-270
HT9, a ferritic/martensitic steel, is a candidate structural material for next-generation advanced reactors. Its microstructure is a typical tempered martensite showing a hierarchical lath-block-and-packet structure. We investigate the specimen size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40c00329181befef8957d4263d967f23
https://doi.org/10.1016/j.jnucmat.2018.03.014
https://doi.org/10.1016/j.jnucmat.2018.03.014