Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Seung-Chang Han"'
Autor:
Umer Masood Chaudry, Seung-Chang Han, Kaab bin Tayyab, Ameeq Farooq, Woo-Sung Kim, Tea-Sung Jun
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 1188-1200 (2024)
In this study, cubic Hastelloy-X was manufactured by laser powder bed fusion process. A systematic investigation focused on the microstructure and anisotropic electrochemical corrosion behavior along the building direction was conducted. Distinctive
Externí odkaz:
https://doaj.org/article/e1842be8b9e844dfa538864c9b21b647
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 4444-4455 (2024)
This study investigates the microstructure and mechanical properties of wear-resistant hardfacing structures fabricated on an AISI 1045 carbon steel substrate using a specially designed Fe–Cr based powder for directed energy deposition (DED). Elect
Externí odkaz:
https://doaj.org/article/6b7889512dfa46ec9a6cd0649610bac2
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 5118-5125 (2024)
Ti–6Al–4V alloy was subjected to cryogenic treatment at −196 °C followed by single and multiple treatment cycles. Compression tests revealed that, despite a decrease in yield strength, cryogenically treated samples (especially by multiple cryo
Externí odkaz:
https://doaj.org/article/5d1c82be8c29450aa36ef413947effd3
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 4976-4989 (2023)
In this study, microstructural and texture development in the individual weld zone during friction stir welding (FSW) of DP780 steel at similar tool rotation speed (200 rpm) different welding speeds (200 mm/min and 400 mm/min) was investigated. Phase
Externí odkaz:
https://doaj.org/article/18c78d7dd147447ca22c9864dfddb146
Publikováno v:
Journal of Materials Research and Technology, Vol 20, Iss , Pp 508-515 (2022)
In this study, the effect of variable transverse speed (200 mm/min and 400 mm/min) on the microstructure and mechanical properties of FSWed DP 780 steel was systematically investigated. A detailed microstructural characterization was conducted using
Externí odkaz:
https://doaj.org/article/c64ed267b29c4324b5e4ecde5786f990
Role of silicon on formation and growth of intermetallic phases during rapid Fe–Zn alloying reaction
Autor:
Seung-Chang Han, Dario Ferreira Sanchez, Daniel Grolimund, Sang-Ho Uhm, Du-Youl Choi, Hong-Chul Jeong, Tea-Sung Jun
Publikováno v:
Materials Today Advances, Vol 18, Iss , Pp 100368- (2023)
The study of liquid metal embrittlement in Fe–Zn systems is challenging because of the high temperature and vapor pressure of Zn, which hinders in-situ investigations with sufficiently high spatial resolution. This is typically associated with subs
Externí odkaz:
https://doaj.org/article/42630f79517846c78df9a188b0dea920
Publikováno v:
Metals, Vol 13, Iss 10, p 1697 (2023)
This study presents information on the behavior of paint baking (PB) after resistance spot welding of the 5- and 6xxx series aluminum alloys. The weld parameters are optimized, and the weld specimens are baked three times for 20 min at 180 °C to sim
Externí odkaz:
https://doaj.org/article/24590156e3e04276b166dac3261ca26b
Autor:
Seung-Chang Han, Umer Masood Chaudry, Sandra Bernardo Cenalmor, Si Mo Yeon, Jongcheon Yoon, Hyub Lee, Kyeongtae Kim, Tea-Sung Jun
Publikováno v:
Metals, Vol 13, Iss 7, p 1214 (2023)
The directed energy deposition (DED) process offers potential advantages, such as a large building space, limited dilutions, narrow heat-affected zones (HAZ) and potentially improved surface properties. Moreover, heat treatments have been reported to
Externí odkaz:
https://doaj.org/article/bbb541dc8f894e5aab01970b99ae576e
Publikováno v:
Metals, Vol 11, Iss 7, p 1097 (2021)
In the present study, the effect of post-weld heat treatment (PWHT) on the microstructure and mechanical properties of friction stir welded (FSW) DP780 steel sheets was investigated. FSW was carried out at a constant tool rotation speed of 400 rpm an
Externí odkaz:
https://doaj.org/article/9ce1621ff59640bf92fd2b13a17a7a95
Autor:
Jun, Seung-Chang Han, Umer Masood Chaudry, Sandra Bernardo Cenalmor, Si Mo Yeon, Jongcheon Yoon, Hyub Lee, Kyeongtae Kim, Tea-Sung
Publikováno v:
Metals; Volume 13; Issue 7; Pages: 1214
The directed energy deposition (DED) process offers potential advantages, such as a large building space, limited dilutions, narrow heat-affected zones (HAZ) and potentially improved surface properties. Moreover, heat treatments have been reported to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::673b1c7cd8dd0c30d57b7cd3bda2b98a