Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Jun Hyun Han"'
Autor:
Taeho Lee, Chetan Singh, You Sub Kim, Dong-Hyun Lee, Jun Hyun Han, Jun-Yun Kang, Soo Yeol Lee
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 2580-2592 (2024)
This study investigates the strain rate-dependent deformation behavior of cost-effective twinning-induced plasticity (TWIP) steel, Fe–26Mn-0.4C, at 15 K and reveals intriguing insights into its mechanical properties. The serration type changes from
Externí odkaz:
https://doaj.org/article/20eb06d1579e44e994da9d9d48e80908
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 2376-2387 (2024)
The influence of a pre-deformation mode during the thermomechanical treatment of an A2139 Al alloy plate on the non-homogeneity of plastic deformation and mechanical properties was investigated. Two pre-deformation modes were selected: cold stretchin
Externí odkaz:
https://doaj.org/article/0c685425bf294c0bb97209516d278312
Autor:
Thanh-Dat Nguyen, Chetan Singh, You Sub Kim, Jun Hyun Han, Dong-Hyun Lee, Kwangjin Lee, Stefanus Harjo, Soo Yeol Lee
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 1547-1556 (2024)
This study investigates the mechanical properties of a friction-stir-welded (FSW) AA6061-T6 aluminum alloy at ultra-low temperature (ULT) of 20 K. In-situ neutron diffraction and orientation imaging microscopy were employed to compare the tensile def
Externí odkaz:
https://doaj.org/article/021ab7c39ccc406986949ad592e25afd
Autor:
Jun Zhang, Sang Hun Shim, Hyeyoung Cho, Donggil Lee, Soo Yeol Lee, Jae-Pyoung Ahn, Jun Hyun Han
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 2539-2559 (2023)
Bimodal reinforcement consisting of powders of large graphite flake (GF) and small graphene nanoplatelet (GNP) were used to fabricate (GF + GNP)/Cu composites to reduce the anisotropy of the thermal and mechanical properties in GF/Cu composites. In t
Externí odkaz:
https://doaj.org/article/1c379511e5a64bd490753085dd2c1c7b
Autor:
Wonkee Chae, Minkyung Jeong, Donggil Lee, Jongbeom Lee, Dong Won Chun, Soo Yeol Lee, Soon-Ku Hong, Su Hyeon Kim, Jun Hyun Han
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 9476-9490 (2023)
6061 aluminum (Al) alloys were asymmetrically rolled to apply shear deformation, and the effects of pre/post-aging treatment on the mechanical properties and texture evolution were analyzed. The texture was analyzed using electron backscattered diffr
Externí odkaz:
https://doaj.org/article/31ae7196e1d0461d94ec2950550a6d35
Autor:
Tien-Dung Nguyen, Nooruddin Ansari, Keun Hyung Lee, Dong-Hyun Lee, Jun Hyun Han, Soo Yeol Lee
Publikováno v:
Materials, Vol 17, Iss 5, p 1100 (2024)
The phenomenon of hydrogen embrittlement (HE) in metals and alloys, which determines the performance of components in hydrogen environments, has recently been drawing considerable attention. This study explores the interplay between strain rates and
Externí odkaz:
https://doaj.org/article/47ac747ae6ac4c6a8cd3416aa6db9e19
Autor:
Panneerselvam Mohana, Melkiyur Isacfranklin, Rathinam Yuvakkumar, Ganesan Ravi, Lakshmanan Kungumadevi, Sundaramoorthy Arunmetha, Jun Hyun Han, Sun Ig Hong
Publikováno v:
Nanomaterials, Vol 14, Iss 3, p 280 (2024)
In this study, the pristine MgO, MgO/CNT and Ni-MgO/CNT nanocomposites were processed using the impregnation and chemical vapor deposition methods and analyzed for hydrogen evolution reaction (HER) using the electrochemical water splitting process. F
Externí odkaz:
https://doaj.org/article/466f9c635e8540bc913dda5e220c02c1
Autor:
Ui Seok Kim, Hyo Sang Kwon, Wonjong Yang, Wonchul Lee, Changil Choi, Jong Keun Kim, Seong Ho Lee, Dohyoung Rim, Jun Hyun Han
Publikováno v:
Investigative and Clinical Urology, Vol 63, Iss 4, Pp 441-447 (2022)
Purpose: This study aimed to predict the composition of urolithiasis using deep learning from urinary stone images. Materials and Methods: We classified 1,332 stones into 31 classes according to the stone composition. The top 4 classes with a freque
Externí odkaz:
https://doaj.org/article/0656ea460b154affa1a6b9ae201ced70
Publikováno v:
Investigative and Clinical Urology, Vol 63, Iss 1, Pp 63-70 (2022)
Purpose: To investigate the risk of symptomatic urolithiasis requiring surgical treatment according to obesity and metabolic health status using a nationwide dataset of the Korean population. Materials and Methods: Of the 5,300,646 persons who under
Externí odkaz:
https://doaj.org/article/b676610510454514ba81192aebb9e5de
Autor:
Sang Hun Shim, Hesam Pouraliakbar, Byung Ju Lee, Yong Keun Kim, Mohsen Saboktakin Rizi, Jun Hyun Han, Sun Ig Hong
Publikováno v:
Data in Brief, Vol 45, Iss , Pp 108567- (2022)
The data presented here are related to the research article entitled “Strengthening and deformation behavior of as-cast CoCrCu1.5MnNi high-entropy alloy (HEA) with micro-/nanoscale precipitation [1]”. Non-equimolar CoCrCu1.5MnNi was cast by the c
Externí odkaz:
https://doaj.org/article/51502ad99f704acfbd566881da7efc26