Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Kemal Davut"'
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
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
Publikováno v:
Materials, Vol 17, Iss 5, p 1139 (2024)
The mechanical characteristics of polycrystalline metallic materials are influenced significantly by various microstructural parameters, one of which is the grain size. Specifically, the strength and the toughness of polycrystalline metals exhibit en
Externí odkaz:
https://doaj.org/article/c2ac41a70f0047aca977d781abb0c743
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
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 38, Iss , Pp 101337- (2023)
In this study, Armox 600T armor steel was ballistically tested against 7.62 mm × 51 M61 AP projectile. The experimental design was constructed on the basis of the worst-case scenario which is the highest possible impact velocity in the multi-hit con
Externí odkaz:
https://doaj.org/article/ff3e967f95fb442287a139f839a1f321
Publikováno v:
Corrosion and Materials Degradation, Vol 2, Iss 3, Pp 397-411 (2021)
The corrosion morphology in grade 2205 duplex stainless steel wire was studied to understand the nature of pitting and the causes of the ferrite phase’s selective corrosion in acidic (pH 3) NaCl solutions at 60 °C. It is shown that the corrosion m
Externí odkaz:
https://doaj.org/article/f5afe06a0ad741b58cf38212f01f362c
Autor:
Doğancan Eraslan, Ahmet Balcı, Barış Çetin, Necati Uçak, Adem Çiçek, Okan Deniz Yılmaz, Kemal Davut
Publikováno v:
Journal of Materials Research and Technology, Vol 11, Iss , Pp 1443-1456 (2021)
In engineering applications, to increase productivity and to decrease production costs, the selection of the proper engineering material is essential. At that point, machining operations directly affect the production costs. Therefore, determination
Externí odkaz:
https://doaj.org/article/81d6c59eb6de40579ea152c5f4988503
Publikováno v:
Hittite Journal of Science and Engineering, Vol 5, Iss 4, Pp 301-306 (2018)
The requirements for higher passenger safety, improved fuel economy and weight reduction in automobile industry necessitates the usage of advanced high strength steel AHSS grades. Dual phase DP steels are the most widely used one among AHSS. DP steel
Externí odkaz:
https://doaj.org/article/ab57d5777be8496da07b39ede361ef62