Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Min Young Na"'
Autor:
Naijia Liu, Sungwoo Sohn, Min Young Na, Gi Hoon Park, Arindam Raj, Guannan Liu, Sebastian A. Kube, Fusen Yuan, Yanhui Liu, Hye Jung Chang, Jan Schroers
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Abstract The underlying atomistic mechanism of deformation is a central problem in mechanics and materials science. Whereas deformation of crystalline metals is fundamentally understood, the understanding of deformation of amorphous metals lacks behi
Externí odkaz:
https://doaj.org/article/7199ed1c682a447c8c2f3df90318cad2
Autor:
Jae Bok Seol, Won-Seok Ko, Seok Su Sohn, Min Young Na, Hye Jung Chang, Yoon-Uk Heo, Jung Gi Kim, Hyokyung Sung, Zhiming Li, Elena Pereloma, Hyoung Seop Kim
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-13 (2022)
Unlike diffusion-mediated chemical short-range orders (SROs) in multi-principal element alloys, diffusionless SROs and their impact on alloys have been elusive. Here, the authors show the formation of strain-induced SROs by crystalline lattice defect
Externí odkaz:
https://doaj.org/article/93c28d8fbf0b4391b90b17e8597f8230
Autor:
Giseung Shin, Marzieh Ebrahimian, Nana Kwabena Adomako, Haneul Choi, Dong Jun Lee, Ji-Hyun Yoon, Dae Whan Kim, Jun-Yun Kang, Min Young Na, Hye Jung Chang, Jeoung Han Kim
Publikováno v:
Materials & Design, Vol 227, Iss , Pp 111681- (2023)
In this study, the additive manufacturing of a functionally graded material (FGM) via directed energy deposition was investigated as an alternative to joining dissimilar metals. The metal powder composition of the FGM was gradually changed from fully
Externí odkaz:
https://doaj.org/article/46f77c4c380d40559054405188ef88e4
Autor:
Andrews Nsiah Ashong, Min Young Na, Hyoung Chan Kim, Sang Hoon Noh, Taesung Park, Hye Jung Chang, Jeoung Han Kim
Publikováno v:
Materials & Design, Vol 182, Iss , Pp - (2019)
A novel high-Mn oxide-dispersion-strengthened (ODS) steel, with high cryogenic temperature impact energy, was developed. The effect of Mn content on the microstructure and mechanical properties of ODS steels were examined. The addition of 25 wt.% Mn
Externí odkaz:
https://doaj.org/article/a21769c7d7ad4ae59a2817cae05c3ea0
Publikováno v:
AIP Advances, Vol 5, Iss 11, Pp 117202-117202-8 (2015)
The oxidation behavior of Ti44.5Cu44.5Zr7Be4 metallic glass has been investigated. The oxide layer with a fully amorphous structure forms when heated up to the SCL temperature region, indicating that the presence of Be in the oxide layer improves the
Externí odkaz:
https://doaj.org/article/7bc00d64d3b748289b007786d3db2a41
Autor:
Seunghyeok Lee, Sung‐Jin Jung, Gwang Min Park, Min Young Na, Kwang‐Chon Kim, Junpyo Hong, Albert S. Lee, Seung‐Hyub Baek, Heesuk Kim, Tae Joo Park, Jin‐Sang Kim, Seong Keun Kim
Publikováno v:
Small. 19
Autor:
Min Young Na, Ho Jin Ryu, Hyun-Gil Kim, Il Hyun Kim, Jee Hwan Bae, Barton Mensah Arkhurst, Jeoung Han Kim, Hye Jung Chang
Publikováno v:
Journal of Materials Science & Technology. 95:114-126
Conventionally, Te has primarily been used to improve the machinability of steel and its alloys. In this work, Te was used to refine the grains of an oxide-dispersion-strengthened (ODS) steel produced by additive manufacturing (AM) with fixed process
Autor:
Ka Ram Lim, Sang Tae Woo, Min Young Na, Jee Hyuk Ahn, Young Sang Na, Heon Jun Kwon, Woo Chul Kim, Young Kyun Kim, Eun-Ae Choi, Seung Zeon Han
Publikováno v:
Journal of Alloys and Compounds. 920:166025
Publikováno v:
Korean Journal of Metals and Materials. 57:555-561
Publikováno v:
Journal of Alloys and Compounds. 788:191-197
The effect of quenching temperature on local atomic structure of Al85Ni5Co2Y8 metallic glass has been investigated in the present study. With increasing quenching temperature from 1273 K to 1573 K, the amount of medium range order (MRO) tends to decr