Zobrazeno 1 - 10
of 16
pro vyhledávání: '"YuJin Seong"'
Autor:
Ji Hyun Moon, Seung Mi Baek, Seok Gyu Lee, Yujin Seong, Auezhan Amanov, Sunghak Lee, Hyoung Seop Kim
Publikováno v:
Materials Research Letters, Vol 7, Iss 3, Pp 97-102 (2019)
Effects of surface grain refinement and residual stress on the local and global properties of pure Cu processed using ultrasonic nanocrystalline surface modification (UNSM) was investigated. To distinguish each contribution to the local hardness and
Externí odkaz:
https://doaj.org/article/d0f78aa6c5114942a09e274ee33f559f
Publikováno v:
Metals and Materials International. 26:221-229
A physics-based constitutive model of porous materials is proposed to enhance the accuracy of numerical analysis in die/isostatic compaction. The correlation between the yield function and equivalent work equation was derived, and the numerical integ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6727083518c77e9af80b6ba0e0b463bc
https://doi.org/10.1007/s12540-019-00317-z
https://doi.org/10.1007/s12540-019-00317-z
Publikováno v:
Powder Technology. 352:42-52
Nano/micro-bimodal powders take advantages of both nano- and micro-powders. However, densification of the bimodal powder samples is hardly predictable with conventional sintering models due to their particular shrinkage behaviors. In this study, sint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff9c298529c2e9c4e7fa024650032aba
https://doi.org/10.1016/j.powtec.2019.04.056
https://doi.org/10.1016/j.powtec.2019.04.056
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 25:475-481
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a0b98aac409f3b3e4522e6c2f6669d8
https://doi.org/10.4150/kpmi.2018.25.6.475
https://doi.org/10.4150/kpmi.2018.25.6.475
Autor:
Sunghak Lee, Seung Mi Baek, Hyoung Seop Kim, Ji Hyun Moon, Auezhan Amanov, Seok Gyu Lee, Yujin Seong
Publikováno v:
Materials Research Letters, Vol 7, Iss 3, Pp 97-102 (2019)
Effects of surface grain refinement and residual stress on the local and global properties of pure Cu processed using ultrasonic nanocrystalline surface modification (UNSM) was investigated. To distinguish each contribution to the local hardness and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c93ce2935fb7ff0892a34b162fa0bd41
https://doi.org/10.1080/21663831.2018.1560370
https://doi.org/10.1080/21663831.2018.1560370
Publikováno v:
Journal of Materials Processing Technology. 262:503-510
This paper presents investigation of how nanoparticles in bimodal powder that contains both nanoparticles and microparticles affect the physical and mechanical properties of injection-molded parts. As the starting materials, a pure-micropowder, and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c13f57a4085419fd62cca6d1725a6e77
https://doi.org/10.1016/j.jmatprotec.2018.07.012
https://doi.org/10.1016/j.jmatprotec.2018.07.012
Autor:
Yujin Seong, Sungho Kim, Seong-Gon Kim, Hak Jun Kim, See Jo Kim, Youngkyu Kim, Seong Jin Park, Randall M. German
Publikováno v:
Computational Materials Science. 123:164-175
Sintering mechanisms of nanoscale copper powder are investigated using molecular dynamics (MD) simulations based on the embedded-atom method (EAM). The densification parameters, such as shrinkage, and relative sintered density are calculated using th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7717e5a7154a7d7509d95132affce4fd
https://doi.org/10.1016/j.commatsci.2016.06.016
https://doi.org/10.1016/j.commatsci.2016.06.016
Autor:
Jung Gi Kim, Min Hong Seo, Hyoung Seop Kim, Hyunsang Hwang, Jongwon Lee, Yujin Seong, Dong Hyuk Kim
Publikováno v:
Materials Science and Engineering: A. 794:139965
Martensitic steels are widely used for safety parts in automobiles due to their high strength and excellent energy absorption, in particular, under high strain-rate service conditions. Precipitation in the martensite matrix increases strength but red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd708a3a88c28db926f84ee8e893a97f
https://doi.org/10.1016/j.msea.2020.139965
https://doi.org/10.1016/j.msea.2020.139965
Autor:
Seong Jin Park, Sungho Kim, See Jo Kim, Sungwon Hwang, Yujin Seong, Seong-Gon Kim, Hak Jun Kim
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 22:247-253
The sintering mechanisms of nanoscale copper powders have been investigated. A molecular dynamics(MD) simulation with the embedded-atom method (EAM) was employed for these simulations. The dimensional changesfor initial-stage sintering such as charac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::755e585a45437693aef3b299006e6c48
https://doi.org/10.4150/kpmi.2015.22.4.247
https://doi.org/10.4150/kpmi.2015.22.4.247
Autor:
Sun Hong Park, Jeong Min Park, Jung Gi Kim, Yujin Seong, Hyoung Seop Kim, Ji-Hun Yu, Jin Myoung Jeon
Publikováno v:
Materials Science and Engineering: A. 763:138152
In this study, the anisotropic and asymmetric mechanical behaviors of 316 L stainless steel processed using selective laser melting, were investigated experimentally and theoretically by performing tension and compression tests along different direct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e52ecb9f790ef76178e2bb94cbf7bb4
https://doi.org/10.1016/j.msea.2019.138152
https://doi.org/10.1016/j.msea.2019.138152