Zobrazeno 1 - 10
of 240
pro vyhledávání: '"Easo P. George"'
Autor:
Le Li, Zhenghao Chen, Seiko Tei, Yusuke Matsuo, Ryosuke Chiba, Koretaka Yuge, Haruyuki Inui, Easo P. George
Publikováno v:
Science and Technology of Advanced Materials, Vol 25, Iss 1 (2024)
Temperature-dependent plastic deformation behaviors of single crystals of quaternary and ternary equiatomic medium-entropy alloys (MEAs) belonging to the Cr-Mn-Fe-Co-Ni system were investigated in compression at temperatures in the range 9 K to 1373
Externí odkaz:
https://doaj.org/article/383acc1cfd9d47bfaabd62867d0a3cd3
Autor:
Tomohito Tsuru, Shu Han, Shutaro Matsuura, Zhenghao Chen, Kyosuke Kishida, Ivan Iobzenko, Satish I. Rao, Christopher Woodward, Easo P. George, Haruyuki Inui
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Refractory high-entropy alloys (RHEAs) are of interest for ultrahigh-temperature applications. To overcome their drawbacks — low-temperature brittleness and poor creep strength at high temperatures — improved fundamental understanding is
Externí odkaz:
https://doaj.org/article/e80c4e4eac974e63afc9ab046bb42d07
Autor:
Zijiao Zhang, Hongwei Sheng, Zhangjie Wang, Bernd Gludovatz, Ze Zhang, Easo P. George, Qian Yu, Scott X. Mao, Robert O. Ritchie
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Materials that show twinning-induced plasticity can offer unusual combinations of strength and ductility. Here, authors study deformation twinning and dislocation behaviour in a medium-entropy alloy CrCoNi and find a three-dimensional (3D) hierarchic
Externí odkaz:
https://doaj.org/article/95790707a253450c9812a92f3039c978
Autor:
Bernd Gludovatz, Anton Hohenwarter, Keli V. S. Thurston, Hongbin Bei, Zhenggang Wu, Easo P. George, Robert O. Ritchie
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
High-entropy alloys derive their properties from being multi-element systems that can crystallize as a single phase. Here, the authors examine a medium-entropy alloy, CrCoNi, which displays strength-toughness properties exceeding those of high-entrop
Externí odkaz:
https://doaj.org/article/471f23d466664dc4995268a3ad01ac8f
Autor:
Werner Skrotzki, Aurimas Pukenas, Eva Odor, Bertalan Joni, Tamas Ungar, Bernhard Völker, Anton Hohenwarter, Reinhard Pippan, Easo P. George
Publikováno v:
Crystals, Vol 10, Iss 4, p 336 (2020)
The equiatomic face-centered cubic high-entropy alloy CrMnFeCoNi was severely deformed at room and liquid nitrogen temperature by high-pressure torsion up to shear strains of about 170. Its microstructure was analyzed by X-ray line profile analysis a
Externí odkaz:
https://doaj.org/article/45030620a1a74c5b87c7b9f49cd9c9d4
Publikováno v:
AIP Advances, Vol 6, Iss 12, Pp 125008-125008-8 (2016)
Although metals strengthened by alloying have been used for millennia, models to quantify solid solution strengthening (SSS) were first proposed scarcely seventy years ago. Early models could predict the strengths of only simple alloys such as dilute
Externí odkaz:
https://doaj.org/article/86c3e69e53724a8cb986b2cd7643f711
Autor:
Dong Liu, Qin Yu, Saurabh Kabra, Ming Jiang, Paul Forna-Kreutzer, Ruopeng Zhang, Madelyn Payne, Flynn Walsh, Bernd Gludovatz, Mark Asta, Andrew M. Minor, Easo P. George, Robert O. Ritchie
Publikováno v:
Science. 378:978-983
CrCoNi-based medium- and high-entropy alloys display outstanding damage tolerance, especially at cryogenic temperatures. In this study, we examined the fracture toughness values of the equiatomic CrCoNi and CrMnFeCoNi alloys at 20 kelvin (K). We foun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ca4b8c4e84fea146a5277f1df58a045
https://doi.org/10.1126/science.abp8070
https://doi.org/10.1126/science.abp8070
Autor:
Easo P. George, Robert O. Ritchie
Publikováno v:
MRS Bulletin. 47:145-150
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05cb2914e3611bbbd6a047efacc1da03
https://doi.org/10.1557/s43577-022-00285-7
https://doi.org/10.1557/s43577-022-00285-7
Autor:
Daniel Dickes, Beyza Öztürk, Felix Baier, Pascal Berger, Easo P. George, Rainer Völkl, Mathias C. Galetz, Uwe Glatzel
Publikováno v:
Corrosion Science. 217:111159
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d739a58ff069fe40370d232545f6596
https://doi.org/10.1016/j.corsci.2023.111159
https://doi.org/10.1016/j.corsci.2023.111159
Autor:
Jonathan D. Poplawsky, Lizhen Tan, Tianyi Chen, Ying Yang, Albina Y. Borisevich, Yanli Wang, Easo P. George, Andrew R. Lupini, Ke An, Kenneth C. Littrell, German D. Samolyuk
Publikováno v:
Nature. 595:245-249
Single-phase high- and medium-entropy alloys with face-centred cubic (fcc) structure can exhibit high tensile ductility1,2 and excellent toughness2,3, but their room-temperature strengths are low1–3. Dislocation obstacles such as grain boundaries4,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3267388cfe05a9aab9973e751acd011b
https://doi.org/10.1038/s41586-021-03607-y
https://doi.org/10.1038/s41586-021-03607-y