Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Nam-Seok Kim"'
Autor:
Jeong-Chan Lee, Dae Cheol Yang, Min Young Sung, Nam-Seok Kim, Hyung-Ki Park, Miri Choi, Young Do Kim, Seok Su Sohn, Chang-Soo Park
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2757-2766 (2024)
Hydrogen embrittlement (HE) resistance is a significant concern in austenitic stainless steel (ASS) used for hydrogen transportation and storage. While microstructure-controlled methods to enhance HE resistance have been extensively studied in ferrit
Externí odkaz:
https://doaj.org/article/6c5b8cc85d4041a0865f50560bb0e07e
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 2, Pp 489-492 (2024)
Effects of Si and Mg as main elements on interface reaction between tool steel and molten Al alloy at 700°C were investigated. Pure aluminum and Al-10mass%Mg alloy showed relatively simple interfacial layers, whereas thicker, multi-layered reaction
Externí odkaz:
https://doaj.org/article/3b062e20792d43008eba407ee9b22817
Autor:
Hyeon-Tae Im, Woo Jin Kim, Nam-Seok Kim, Dae Ha Kim, Chang-Soo Park, Kwangsuk Park, Young Do Kim, Hyung-Ki Park
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 8348-8356 (2023)
Oxide dispersion strengthened (ODS) alloys exhibit excellent mechanical properties due to fine oxide dispersion, but they have great limitations due to utilizing powder fabrication via mechanical alloying. Therefore, this study examined the alloy com
Externí odkaz:
https://doaj.org/article/b224084ea68041638978ceb4a4fbdeb5
Autor:
Kweon-Hoon Choi, Bong-Hwan Kim, Da-Bin Lee, Seung-Yoon Yang, Nam-Seok Kim, Seong-Ho Ha, Young-Ok Yoon, Hyun-Kyu Lim, Shae-Kwang Kim
Publikováno v:
Materials, Vol 14, Iss 12, p 3314 (2021)
In this work, the microstructure and corrosion behavior of a novel Al-6Mg alloy were investigated. The alloy was prepared by casting from pure Al and Mg+Al2Ca master alloy. The ingots were homogenized at 420 °C for 8 h, hot-extruded and cold-rolled
Externí odkaz:
https://doaj.org/article/bef37672a0c9431ca6d043cfbcfbab23
Autor:
Seung-Yoon Yang, Da-Bin Lee, Kweon-Hoon Choi, Nam-Seok Kim, Seong-Ho Ha, Bong-Hwan Kim, Young-Ok Yoon, Hyun-Kyu Lim, Shae K. Kim, Young-Jig Kim
Publikováno v:
Metals, Vol 11, Iss 3, p 410 (2021)
For the purpose of applying a modified 5083 alloy (New 5083M alloy) with high Mg content in various automotive sheet parts, the stretch forming behavior of the 5083M alloy was studied in tensile mode at a wide range of processing conditions. The tens
Externí odkaz:
https://doaj.org/article/eb27f3878db14e8ab87bcedfa8a1db96
Autor:
Kweon-Hoon Choi, Bong-Hwan Kim, Da-Bin Lee, Seung-Yoon Yang, Nam-Seok Kim, Seong-Ho Ha, Young-Ok Yoon, Hyun-Kyu Lim, Shae-Kwang Kim
Publikováno v:
Metals, Vol 11, Iss 3, p 445 (2021)
High strength Al-Mg alloy is an attractive material that has the characteristic of increasing both strength and elongation by adding more solute Mg. However, there is a limitation in the oxidation issue during the casting process when it contains hig
Externí odkaz:
https://doaj.org/article/eff9648e8a98414b9ac660a8c97c253d
Autor:
Nam-Seok Kim, Kweon-Hoon Choi, Seung-Yoon Yang, Seong-Ho Ha, Young-Ok Yoon, Bong-Hwan Kim, Hyun-Kyu Lim, Shae K. Kim, Soong-Keun Hyun
Publikováno v:
Metals, Vol 11, Iss 2, p 288 (2021)
A hot compression test of new Al-6Mg and Al-8Mg alloys was conducted to understand the dynamic recrystallization (DRX) behavior by Mg contents. To investigate the hot workability of Al-Mg with high Mg contents, the hot deformation behavior of Al-6Mg
Externí odkaz:
https://doaj.org/article/3375cdda388648a39469469fd6b089e5
Autor:
Nam-Seok Kim
Publikováno v:
The Journal of Gamsung. 25:67-97
Autor:
Nam-seok Kim
Publikováno v:
THE JOURNAL OF MODERN LITERARY THEORY. 89:5-26
Publikováno v:
THE JOURNAL OF MODERN LITERARY THEORY. 87:31-56