Zobrazeno 1 - 10
of 633
pro vyhledávání: '"hole expansion"'
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2357-2369 (2024)
To address the requirements for safety enhancement, weight reduction, and emission reduction, a novel transformation-induced plasticity-assisted bainitic ferrite (TBF) steel was processed by involving a pre-quenching (PQ) process. This steel was desi
Externí odkaz:
https://doaj.org/article/edb5ed17daa94ebfb78329f865238130
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 1117-1131 (2024)
The effects of aluminum (Al) additions (0.04, 0.4, and 0.8 wt%) on the microstructural evolution, tensile properties, and sheared-edge ductility of dual phase (DP) steels were investigated. The DP steels were processed with distinct coiling temperatu
Externí odkaz:
https://doaj.org/article/2f17b5768586450d8227c267e10a322c
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 691-702 (2024)
The application of advanced high-strength steels (AHSS) by automakers is now a consolidated reality. In this scenario, Dual Phase (DP) steels deserve special mention due to their versatility in a vast range of applications, since they present an exce
Externí odkaz:
https://doaj.org/article/b3a03a05f4e043cf8f20778cfc92617d
Autor:
Chin Joo Tan
Publikováno v:
Alexandria Engineering Journal, Vol 86, Iss , Pp 360-372 (2024)
In the simulation of the hole-flanging process, many had reported that the effect of mesh sensitivity on strain localizations is insignificant. In this study, mesh layouts including the number of elements along the hole circumference (CD), element si
Externí odkaz:
https://doaj.org/article/5b1e136d0ba84be396dc623a5088fc57
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:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 2040-2048 (2023)
Using the final state analysis method (fracture morphology analysis), it is difficult to establish the dynamic changes that would have occurred during the process of necking under tensile load. In this paper, the time-dependent observations, the crit
Externí odkaz:
https://doaj.org/article/99cc860751c24bfaa1de2fe8ab6fd1a5
Publikováno v:
Journal of Alloys and Metallurgical Systems, Vol 4, Iss , Pp 100046- (2023)
The influence of the central hole-edge condition on the hole expansion ratio (HER) of four automotive-grade steel sheets is experimentally investigated in this work. The punched hole shows inferior HER for all selected automotive-grade steel sheets t
Externí odkaz:
https://doaj.org/article/3325d138a35747c1a8f3fbd80cc18265
Publikováno v:
Metals, Vol 14, Iss 3, p 365 (2024)
In this study, a 780 MPa grade ferritic-bainitic dual-phase steel with excellent matching of strength-plasticity and formability was developed using thermomechanical control processing. Optical microscopy, Scanning electron microscopy, and Electron B
Externí odkaz:
https://doaj.org/article/21300499228a48a8a9c76e4f448baa35
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