Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Wookha RYU"'
Publikováno v:
Journal of the Japan Society of Powder and Powder Metallurgy. 69:177-184
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b25991501e376a860964c1ebcd19695f
https://doi.org/10.2497/jjspm.69.177
https://doi.org/10.2497/jjspm.69.177
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Scientific Reports
Scientific Reports
The glassy state of a high-pressure heat-treated Zr50Cu40Al10 metallic glass was investigated from energetic and volumetric perspectives. The specific heat (Cp) data of initial heating and subsequent cooling from the supercooled liquid region indicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef1c39b98ee295b3b026d0dac8aa3ef7
http://link.springer.com/article/10.1038/s41598-020-64442-1
http://link.springer.com/article/10.1038/s41598-020-64442-1
Autor:
Kyung-Jun Kim, Hehsang Ahn, Eun Soo Park, Da Hye Seo, Sunghak Park, Sang Won Im, Seungwoo Choi, Ki Tae Nam, Wookha Ryu
Publikováno v:
Journal of Materials Chemistry A. 8:11133-11140
Scalable and facile synthesis of highly active alkaline hydrogen evolution reaction catalysts was demonstrated by controlling the microstructures of Al–Ni alloys and making porous foam and powder. The microstructures were carefully controlled in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9a1a69d3c81c917202bd725e93de1fa
https://doi.org/10.1039/d0ta03391j
https://doi.org/10.1039/d0ta03391j
Publikováno v:
Journal of the Japan Society of Powder & Powder Metallurgy / Funtai Oyobi Fummatsu Yakin; 2022, Vol. 69 Issue 5, p177-184, 8p
Publikováno v:
NPG Asia Materials. 12
The work hardening behavior of bulk metallic glasses has not been previously ascribed to their intrinsic structure but rather to the introduction of other components that act as hardening elements. Here, we present clear evidence of a 2D gradient rej
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::858289a0e8e77837da4e2484d09a5d15
https://doi.org/10.1038/s41427-020-0233-8
https://doi.org/10.1038/s41427-020-0233-8
Autor:
Wookha Ryu, Dierk Raabe, Takeshi Egami, Sai Mu, Cemal Cem Tasan, Kook Noh Yoon, Sang Jun Kim, Fritz Körmann, Hyun Seok Oh, Eun Soo Park, Yuji Ikeda, Khorgolkhuu Odbadrakh
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Nature Communications
Nature Communications, 10(1)
Nature Communications
Nature Communications, 10(1)
Quantitative and well-targeted design of modern alloys is extremely challenging due to their immense compositional space. When considering only 50 elements for compositional blending the number of possible alloys is practically infinite, as is the as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66a919e1b6bd12f5f39c54b0dc5405a3
https://doaj.org/article/c08262e94f0c43aaad759d0c30d7878d
https://doaj.org/article/c08262e94f0c43aaad759d0c30d7878d
Publikováno v:
Journal of Alloys and Compounds. 896:162680
The near-net-shape manufacturing via casting has great potential to commercialize bulk metallic glasses (BMGs) for the complex-shaped structural material. However, it is difficult to cast BMGs with the excellent glass-forming ability (GFA) into the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e967f4106f0b68419fe00a1c7acf7bcf
https://doi.org/10.1016/j.jallcom.2021.162680
https://doi.org/10.1016/j.jallcom.2021.162680
Publikováno v:
NPG Asia Materials. 11
An anomalous glass was discovered through high-pressure heat treatment (5.5 GPa at 850 K) followed by rapid cooling of a Zr50Cu40Al10 metallic glass. Despite a reduction in the crystallization temperature and enthalpy, high-resolution transmission el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f54534660100a01a959e3f8bca3d9ad
https://doi.org/10.1038/s41427-019-0175-1
https://doi.org/10.1038/s41427-019-0175-1
Publikováno v:
Journal of Alloys and Compounds. 879:160417
Herein, we systematically investigate the in-situ synthesis and mechanical properties of Mg-based bulk metallic glass matrix composites (BMGMCs). From a well-known Mg65Cu25Gd10 bulk glass former, a series of Mg65+xCu20–2x/3Zn5Gd10−x/3 (x = 0–18
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8f2d96c89e35888bbf46a7cc046b20e
https://doi.org/10.1016/j.jallcom.2021.160417
https://doi.org/10.1016/j.jallcom.2021.160417
Autor:
Kook Noh Yoon, Jing Zhang, Heh Sang Ahn, Min Seok Kim, Eun Soo Park, Wookha Ryu, Ji Young Kim
Publikováno v:
Metals; Volume 11; Issue 9; Pages: 1487
Metals, Vol 11, Iss 1487, p 1487 (2021)
Metals, Vol 11, Iss 1487, p 1487 (2021)
Herein, we carefully investigate the effect of nitrogen doping in the equiatomic CoCrFeMnNi high-entropy alloy (HEA) on the microstructure evolution and mechanical properties. After homogenization (1100 °C for 20 h), cold-rolling (reduction ratio of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40e340d9452df5109cb85d7858d90071
https://doi.org/10.3390/met11091487
https://doi.org/10.3390/met11091487