Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Hee-Keun Lee"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 9, Iss 6, p 604 (2021)
The International Maritime Organization has recently updated the ship emission standards to reduce atmospheric contamination. One technique for reducing emissions involves using liquefied natural gas (LNG). The tanks used for the transport and storag
Externí odkaz:
https://doaj.org/article/feacf81d2d0b45b6982c877f4b365e5e
Autor:
Junsang Lee, Kyungyul Lee, Seungha Lee, Oh Min Kwon, Won-Ki Kang, Jong-Il Lim, Hee-Keun Lee, Seong-Min Kim, Dongil Kwon
Publikováno v:
Materials, Vol 14, Iss 8, p 2061 (2021)
HY-80 and HY-100 steels, widely used in constructing large ocean vessels and submarine hulls, contain mixed microstructures of tempered bainite and martensite and provide high tensile strength and toughness. Weld integrity in HY steels has been studi
Externí odkaz:
https://doaj.org/article/8625015eee454ce793e6ce345df29321
Autor:
Seunghun Choi, Jongho Won, Jung-Jun Lee, Hee-Keun Lee, Seong-Min Kim, Changhyun Cho, Dongil Kwon
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 12, p 1009 (2020)
Invar alloy sheet was welded by resistance seam welding (RSW) with a constant electrode force and three different welding currents. Tensile properties were evaluated using instrumented indentation testing (IIT) with a spherical indenter and microstru
Externí odkaz:
https://doaj.org/article/1d50166ebf0f4fb4a864c8f92c8c4bd4
Publikováno v:
Metals, Vol 10, Iss 10, p 1385 (2020)
With the need for eco-friendly energy increasing rapidly due to global environmental issues, there is a rapidly increasing demand for liquefied natural gas (LNG). LNG is liquefied at minus 163 degrees Celsius, and its volume decreases to 1/600, givin
Externí odkaz:
https://doaj.org/article/8dea6a6dc1cd40a78991b371b140f7d1
Publikováno v:
Applied Sciences, Vol 10, Iss 5, p 1848 (2020)
We propose an analytical model for the fast prediction of angular distortion that is caused by practical multilayer (or multi-pass) butt welding under constraints. To this end, the relationships between angular distortion, bead size, thickness, and d
Externí odkaz:
https://doaj.org/article/b5e235d0496a44e6af82666c7e7cd576
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 7, Iss 4, Pp 770-783 (2015)
Lately, high production rate welding processes for Al alloys, which are used as LNG FPSO cargo containment system material, have been developed to overcome the limit of installation and high rework rates. In particular, plasma-metal inert gas (MIG) h
Externí odkaz:
https://doaj.org/article/de6af3a241634e3ab83ca7d42db8f7c2
Publikováno v:
Journal of Welding and Joining. 40:305-310
Tungsten Inert Gas (TIG) welding process is mostly applied to high alloy steel pipes including stainless steels because of superior welding quality and gap bridge-ability than other welding processes. However, it has poor productivity due to low weld
Autor:
Hee-keun Lee
Publikováno v:
Korean Journal of Metals and Materials. 57:771-777
Publikováno v:
Journal of Marine Science and Engineering, Vol 9, Iss 604, p 604 (2021)
Journal of Marine Science and Engineering
Volume 9
Issue 6
Journal of Marine Science and Engineering
Volume 9
Issue 6
The International Maritime Organization has recently updated the ship emission standards to reduce atmospheric contamination. One technique for reducing emissions involves using liquefied natural gas (LNG). The tanks used for the transport and storag
Autor:
J.J. Lee, Oh Min Kwon, Seong-Min Kim, Hee-Keun Lee, Won-Ki Kang, Jong-Il Lim, Seungha Lee, Kyungyul Lee, Dongil Kwon
Publikováno v:
Materials, Vol 14, Iss 2061, p 2061 (2021)
Materials
Volume 14
Issue 8
Materials
Volume 14
Issue 8
HY-80 and HY-100 steels, widely used in constructing large ocean vessels and submarine hulls, contain mixed microstructures of tempered bainite and martensite and provide high tensile strength and toughness. Weld integrity in HY steels has been studi