Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Hengfeng Gu"'
Autor:
Merve Nur Doğu, Seren Ozer, Mustafa Alp Yalçın, Kemal Davut, Muhannad Ahmed Obeidi, Caner Simsir, Hengfeng Gu, Chong Teng, Dermot Brabazon
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 5457-5481 (2024)
This study provides a comprehensive investigation into the effects of different scanning strategies on the material properties of IN939 fabricated using the PBF-LB process. The scanning strategies examined included alternating bi-directional scanning
Externí odkaz:
https://doaj.org/article/528d01ec4fba406b95b89b4e184f004e
Autor:
Seren Ozer, Merve Nur Doğu, Ceren Ozdemirel, Güney Mert Bilgin, Mert Gunes, Kemal Davut, Hengfeng Gu, Dermot Brabazon
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 574-588 (2024)
This study aimed to provide a comprehensive understanding of how aging treatments (namely, HT1 and HT2) affect the microstructure, cracking behavior, and crystallographic texture of IN939 fabricated by powder bed fusion-laser beam (PBF-LB) method. Al
Externí odkaz:
https://doaj.org/article/66ea5ec046004be58a564e70a02d1b09
Publikováno v:
Materials, Vol 17, Iss 13, p 3324 (2024)
This study investigates the effects of process parameters in the powder bed fusion–laser beam (PBF-LB) process on IN939 samples. The parameters examined include laser power (160, 180, and 200 W), laser scanning speed (400, 800, and 1200 mm/s), and
Externí odkaz:
https://doaj.org/article/d0c85797cc734b7f970e705a1a80942a
Autor:
Merve Nur Doğu, Seren Ozer, Mustafa Alp Yalçın, Kemal Davut, Güney Mert Bilgin, Muhannad Ahmed Obeidi, Håkan Brodin, Hengfeng Gu, Dermot Brabazon
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 8909-8923 (2023)
The effect of various solution heat treatment temperatures (i.e., 1120, 1160, 1200 and 1240 °C) on the microstructure, grain morphology and crystallographic texture of IN939 fabricated by powder bed fusion-laser beam (PBF-LB) was investigated. Micro
Externí odkaz:
https://doaj.org/article/90e0de948c9d4441b2df4065a4e2f624
Autor:
Merve Nur Doğu, Andre Mussatto, Mustafa Alp Yalçın, Seren Ozer, Kemal Davut, Muhannad Ahmed Obeidi, Ajay Kumar, Sarah Hudson, Darragh O'Neill, Robert O'Connor, Hengfeng Gu, Dermot Brabazon
Publikováno v:
Materials & Design, Vol 235, Iss , Pp 112406- (2023)
This study is focused on a comprehensive characterization of virgin and spatter IN939 powders and the effects of a certain amount of spatter powder on the part quality of IN939 fabricated by the L-PBF process. A brown tint coloration formed Al2O3 oxi
Externí odkaz:
https://doaj.org/article/efca8484f04049ce8c96e837565e49a9
Autor:
Merve Nur Doğu, Kemal Davut, Muhannad Ahmed Obeidi, Mustafa Alp Yalçın, Hengfeng Gu, Thaddeus Song En Low, Jon Ginn, Dermot Brabazon
Publikováno v:
Journal of Materials Research and Technology, Vol 19, Iss , Pp 4242-4257 (2022)
The recrystallization and grain growth behaviour of IN718 alloy additively manufactured by laser powder bed fusion (L-PBF) is presented herein. The effects of three different temperatures (1050, 1150 and 1250 °C) and holding times (15, 45 and 90 min
Externí odkaz:
https://doaj.org/article/2ee106a5cf8540f59f1d88b0c298e25f
Autor:
Medad C. C. Monu, Yalda Afkham, Josiah C. Chekotu, Emmanuel J. Ekoi, Hengfeng Gu, Chong Teng, Jon Ginn, Jennifer Gaughran, Dermot Brabazon
Publikováno v:
Integrating Materials and Manufacturing Innovation. 12:52-69
In this paper, a part-scale simulation study on the effects of bi-directional scanning patterns (BDSP) on residual stress and distortion formation in additively manufactured Nitinol (NiTi) parts is presented. The additive manufacturing technique of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f6578be35b6fd67fa91997a7ff87767
https://doi.org/10.1007/s40192-023-00292-9
https://doi.org/10.1007/s40192-023-00292-9
Publikováno v:
Materials & Design, Vol 86, Iss, Pp 545-554 (2015)
This study evaluates the mechanical properties of Ti–6Al–4 V samples produced by selective laser melting (SLM) and electron beam melting (EBM). Different combinations of process parameters with varying energy density levels were utilized to produ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56880a20fbae3d0a11fa5368313a524b
http://www.sciencedirect.com/science/article/pii/S0264127515302161
http://www.sciencedirect.com/science/article/pii/S0264127515302161
Autor:
Hengfeng Guan, Yanzi Zhang, Jingshu Li, Zhening Zhu, Jiarui Chang, Almas Bakari, Shipin Chen, Kehui Zheng, Shijiang Cao
Publikováno v:
Plants, Vol 13, Iss 5, p 722 (2024)
Uridine diphosphate glycosyltransferases (UDP-GTs, UGTs), which are regulated by UGT genes, play a crucial role in glycosylation. In vivo, the activity of UGT genes can affect the availability of metabolites and the rate at which they can be eliminat
Externí odkaz:
https://doaj.org/article/d8ce9b59523f493cb5e137b8d9160f16
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 689:012003
This study measures the rheological properties of two stainless steel 316L powders which are used for the powder-bed-fusion based additive manufacturing process. The purpose is to evaluate the newly acquired powder in comparison with the used and rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77858b60e142c7621bb76060f3d21827
https://doi.org/10.1088/1757-899x/689/1/012003
https://doi.org/10.1088/1757-899x/689/1/012003