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pro vyhledávání: '"Jewoong Lee"'
Autor:
Woojin Cho, Byeong-Seok Jeong, Kyeongjae Jeong, Seung-Ho Lee, Hwangsun Kim, Jewoong Lee, Sung-Ⅱ Kim, Heung Nam Han
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 837-849 (2023)
Although advanced high-strength steel (AHSS) demonstrates excellent uniaxial tensile formability, its application in automotive parts is limited due to inferior flange formability. Despite extensive efforts to enhance the flange formability of AHSS,
Externí odkaz:
https://doaj.org/article/c904afa8fc704a98be2992bf1a2a9a2d
Publikováno v:
Materials Science and Engineering: A. 639:439-447
The dislocation–point defect interactions in press hardened 22MnB5 steel were characterized by the impulse internal friction technique. The analysis focused on the interaction between the interstitial carbon and the dislocation in the as-die quench
Autor:
Bruno C. De Cooman, Jewoong Lee
Publikováno v:
Metallurgical and Materials Transactions A. 46:456-466
The thin slab casting and direct rolling process is a hot-rolled strip production method which has maintained commercial quality steel grades as a major material in many industrial applications due to its low processing cost. Few innovative products
Publikováno v:
Materials Science and Engineering: A. 536:231-238
The present paper investigates the effect of micro-alloying elements on the stretch-flangeability of a conventional dual phase steel by means of microstructural analysis and hole expansion tests. The addition of micro-alloying elements suppressed the
Publikováno v:
Materials Science and Engineering: A. 243:119-125
An analytical model reflecting the microstructural evolution was made on the basis of Dutta and Mukherjee's work, and applied to the superplastic bulge forming of Ti–6Al–4V alloy. Bulge forming of fine grain (2.5 μm) Ti–6Al–4V alloy sheets w