Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Jonggyu Jeon"'
Publikováno v:
Materials, Vol 15, Iss 22, p 7924 (2022)
The effects of the shapes (needle and round) and volume fractions (low and high) of microscale particles in Al-Si-Mg-Cu-based alloys on recrystallization behavior, texture evolution, mechanical properties, and formability are investigated. The recrys
Externí odkaz:
https://doaj.org/article/cebabc679ebe4f9194be5d0c154ea3a0
Publikováno v:
Materials, Vol 15, Iss 19, p 6552 (2022)
The influence of cluster composition and the addition of vacancies on the decomposition behavior of clusters during artificial aging in Al–Si–Mg alloys were analyzed according to the kinetic Montel Carlo model. Clusters with a balanced compositio
Externí odkaz:
https://doaj.org/article/3bc5ef98a44f4d8ab94138af22766e9d
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 27:203-209
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::664fd9f13bd96b6f8903b3715cbb75f3
https://doi.org/10.4150/kpmi.2020.27.3.203
https://doi.org/10.4150/kpmi.2020.27.3.203
Autor:
Jun Yeon Hwang, Jonggyu Jeon, Jae Hun Kim, Seungjin Nam, Moon J. Kim, Hyunjoo Choi, Jihye Park, Donghyun Bae
Publikováno v:
Journal of Materials Research. 34:720-731
Nanocrystalline (NC) and ultrafine-grained (UFG) CoCrCuFeNi high-entropy alloy (HEA) with grain size ranging between 59 and 386 nm was produced via powder metallurgy and heat treatment. The as-sintered HEA exhibited two face-centered cubic (FCC) phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eedb7c40dc845cf793a6af3f6e9cbf48
https://doi.org/10.1557/jmr.2018.477
https://doi.org/10.1557/jmr.2018.477
Autor:
Seungjin Nam, Hyunjoo Choi, Min Woo Lee, Dong-Yeol Yang, Kyeong-Sik Min, Hwi-Jun Kim, Jonggyu Jeon, Yeonjoo Lee, Yong Jin Kim, Teasuk Jang
Publikováno v:
Powder Technology. 339:440-445
In this study, we investigated the effect of crystalline structures on the magnetic properties of the Fe-based amorphous powder. We intentionally produced uniformly dispersed nanocrystallites inside the Fe-based amorphous powder using a combined proc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4a832ec3c3e0ea64eb7525140ba5f43
https://doi.org/10.1016/j.powtec.2018.08.037
https://doi.org/10.1016/j.powtec.2018.08.037
Publikováno v:
Materials Science and Engineering: A. 799:140199
The anisotropic mechanical properties and formability of Al–Si–Mg–Cu-based alloy sheets were investigated by varying their recrystallized grain sizes. By adding Cr and Mn and controlling the homogenization heat treatment, the recrystallized she
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ed33b356f4f91ad2bf30e00b145f752
https://doi.org/10.1016/j.msea.2020.140199
https://doi.org/10.1016/j.msea.2020.140199
Publikováno v:
Materials & Design, Vol 92, Iss, Pp 73-78 (2016)
A new class of ultrafine-grained high-Mn steels containing nanoscale oxides has been developed by spark-plasma sintering of ball-milled powders. During spark-plasma sintering, nanoscale manganese oxides were generated in Fe–15Mn steel, while nanosc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a4633ece4cb34a278f8a6486e1efd95
http://www.sciencedirect.com/science/article/pii/S026412751530887X
http://www.sciencedirect.com/science/article/pii/S026412751530887X
Autor:
Seong Hyeon Lee, Heung-Kyu Kim, Singon Kang, Jooyoung Park, Jonggyu Jeon, Sangbong Lee, Hyunjoo Choi
Publikováno v:
Powder Technology. 284:459-466
In this study, the combined effects of alloy compositions and porosity in powder metallurgy (P/M) steels on the phase transformation and mechanical properties were investigated. First, carbon steels and Astaloy CrM (Fe–3.0 wt.% Cr–0.5 wt.% Mo) st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d81db6b321cd1e8850342a16636dcd58
https://doi.org/10.1016/j.powtec.2015.07.029
https://doi.org/10.1016/j.powtec.2015.07.029
Publikováno v:
Materials Science and Engineering: A. 791:139791
The effects of second-phase particles on recrystallization behavior were investigated for Al–Si–Mg–Cu based alloy sheets containing a small amount of Cr and Mn elements. Microscale (>1 μm) and nanoscale (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52e7a36a35d60b3dc3543b09876d5b55
https://doi.org/10.1016/j.msea.2020.139791
https://doi.org/10.1016/j.msea.2020.139791