Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Young-Sik Pyun"'
Publikováno v:
한국해양공학회지, Vol 32, Iss 6, Pp 492-501 (2018)
The following results were obtained from a series of studies to accumulate data to reduce the coefficient of friction for press dies by performing tribological tests before and after the UNSM treatment of SM45C. The UNSM-treated material had a nano-s
Externí odkaz:
https://doaj.org/article/9e57c03d0bc84e00bd5f8ecc15b204a8
Publikováno v:
Metals, Vol 11, Iss 5, p 843 (2021)
Ultrasonic nanocrystal surface modification (UNSM) technology was applied to the surfaces of specimens additively manufactured by powder bed fusion (PBF). The changes in roughness and hardness due to the UNSM were set as objective functions, and the
Externí odkaz:
https://doaj.org/article/09753f7a10bc4877aeda0ba221fb1d8a
Autor:
Sungwoo Cho, Hyun-Uk Hong, Nicholas Mohr, Marc Albert, John Broussard, Auezhan Amanov, Young-Sik Pyun
Publikováno v:
Metals, Vol 10, Iss 2, p 210 (2020)
The advanced surface modification process is known as a promising solution to improve the performance of machine components and systems, especially for vehicles, nuclear power plants, biomedical device, etc. There have been several successful applica
Externí odkaz:
https://doaj.org/article/b674bd40f281408cbb645c8366c218f6
Publikováno v:
Metals, Vol 9, Iss 10, p 1114 (2019)
In this study, the effects of ultrasonic nanocrystal surface modification (UNSM) technology on the fatigue life of needle roller bearings were investigated. The fatigue life of the untreated and UNSM-treated needle roller bearings was evaluated using
Externí odkaz:
https://doaj.org/article/d0dbb42e3b45475a98f91ae2f34c8381
Publikováno v:
The Journal of Engineering (2015)
This study investigates the influence of ultrasonic nanocrystal surface modification (UNSM) technique on fatigue properties of SAE AMS 5662 (solution treatment) of Inconel 718 alloys. The fatigue properties of the specimens were investigated using a
Externí odkaz:
https://doaj.org/article/d87533a75e6e42fca7ff5ec571af4e56
Autor:
Auezhan Amanov, Young-Sik Pyun
Publikováno v:
The Journal of Engineering (2015)
Nanostructured materials (NMs) possess outstanding properties than conventional coarse-grained (CG) materials. Hence designing potentially cost-efficient and environmentally products made of NMs with better are on high demand. This paper gives a comp
Externí odkaz:
https://doaj.org/article/f3dd0405ec784beb801467170b6e0370
Autor:
Nicholas Mohr, Stephen Tate, Marc Albert, Sungwoo Cho, Won-Geun Yi, Jean Collin, Markus Burkardt, John Broussard, Young Sik Pyun
Publikováno v:
Volume 1: Codes and Standards.
Stress corrosion cracking (SCC) of nuclear power plant components is perhaps the most significant issue affecting nuclear power plant availability and plant lifetime management. Actions were taken within ASME Section III Task Group Weld Residual Stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b4630a77d331758447ec320fee3188a
https://doi.org/10.1115/pvp2022-85151
https://doi.org/10.1115/pvp2022-85151
Publikováno v:
International Journal of Precision Engineering and Manufacturing-Green Technology. 8:533-546
We propose an effective method to control the local hardness and morphology of a metal surface by tilting the incident angle of a horn during ultrasonic nanocrystal surface modification (UNSM). In this study, surface treatment using UNSM was performe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::016b07466b608636d8f1cdcb885bf054
https://doi.org/10.1007/s40684-020-00303-6
https://doi.org/10.1007/s40684-020-00303-6
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 15102-15122 (2020)
Ultrasonic nanocrystal surface modification (UNSM) technology can be used for the surface treatment of specimens produced by additive manufacturing using directed energy deposition. We investigated the change in the surface quality characteristics of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e83e17494741b78f2ebf5dc22f0fb1
http://www.sciencedirect.com/science/article/pii/S2238785420319517
http://www.sciencedirect.com/science/article/pii/S2238785420319517
Publikováno v:
Metals; Volume 12; Issue 3; Pages: 515
In this work, the effect of ultrasonic nanocrystal surface modification (UNSM) treatment at room and high temperatures (RT and HT) on the high-frequency fatigue behavior of Inconel 718 alloy fabricated by laser metal deposition (LMD) process was expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2fa363fadf1f9eea9a1e77e25996bf0