Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Uta Kühn"'
Autor:
Mikhail Seleznev, Tobias Gustmann, Judith Miriam Friebel, Urs Alexander Peuker, Uta Kühn, Julia Kristin Hufenbach, Horst Biermann, Anja Weidner
Publikováno v:
Additive Manufacturing Letters, Vol 3, Iss , Pp 100099- (2022)
Despite rapid development of laser powder bed fusion (L-PBF) and its monitoring techniques, there is still a lack of in situ crack detection methods, among which acoustic emission (AE) is one of the most sensitive. To elaborate on this topic, in situ
Externí odkaz:
https://doaj.org/article/fc85643e8f2e4039b40659a60bd52501
Publikováno v:
Materials & Design, Vol 216, Iss , Pp 110516- (2022)
The ß-type Ti-42Nb alloy was processed by laser powder bed fusion (LPBF) with an infrared top hat laser configuration aiming to control the Young’s modulus by creating an adapted crystallographic texture. Utilizing a top hat laser, a microstructur
Externí odkaz:
https://doaj.org/article/ab21cf710045432a888b13047d8a73de
Autor:
Katharina Gabrysiak, Tobias Gustmann, Jens Freudenberger, Kai Neufeld, Lars Giebeler, Christoph Leyens, Uta Kühn
Publikováno v:
Additive Manufacturing Letters, Vol 1, Iss , Pp 100017- (2021)
Laser powder bed fusion (LPBF) can help to overcome two challenges occurring by casting of metastable Al alloys: (1) the high amount of casting defects and (2) the limited part size while maintaining rapid solidification of the whole cross-section. I
Externí odkaz:
https://doaj.org/article/b2cd512ab34145af9b2f96d2980975a3
Publikováno v:
Metals, Vol 11, Iss 6, p 944 (2021)
In the last decade, additive manufacturing technologies like laser powder bed fusion (LPBF) have emerged strongly. However, the process characteristics involving layer-wise build-up of the part and the occurring high, directional thermal gradient res
Externí odkaz:
https://doaj.org/article/dfd3042ec39a499197316eb78d5c0bc5
Publikováno v:
Metals, Vol 5, Iss 2, Pp 686-694 (2015)
Ti-45Nb is one of the potential alloys that can be applied for biomedical applications as implants due to its low Young’s modulus. Ti-45Nb (wt.%) gas atomized powders were used to produce bulk samples by selective laser melting with three different
Externí odkaz:
https://doaj.org/article/8377b84d6b474b6f9c455af0c026fdc3
Autor:
Uta Kühn, Jürgen Eckert, Werner Skrotzki, Andy Eschke, Carl-Georg Oertel, Juliane Scharnweber, Ilya Okulov, Romy Petters, Alexander Kauffmann, Jan Romberg, Jens Freudenberger, Ludwig Schultz, Tom Marr
Publikováno v:
Metals, Vol 3, Iss 2, Pp 188-201 (2013)
This study shows the possibility of processing titanium aluminide wires by cold deformation and annealing. An accumulative swaging and bundling technique is used to co-deform Ti and Al. Subsequently, a two step heat treatment is applied to form the d
Externí odkaz:
https://doaj.org/article/b29dc28e9a024ca892a373a55aa24754
Publikováno v:
Metals, Vol 2, Iss 2, Pp 79-94 (2012)
Brass-matrix composites reinforced with 40 and 60 vol.% of Ni59Zr20Ti16Si2Sn3 glassy particles were produced by powder metallurgy. The crystallization behavior and the temperature dependence of the viscosity of the glass reinforcement were studied in
Externí odkaz:
https://doaj.org/article/9a947672ca544b2b8177efd80afd674d
Autor:
Ludwig Schultz, Jürgen Eckert, Carl-Georg Oertel, Werner Skrotzki, Ilya Okulov, Jan Romberg, Dirk Seifert, Jens Freudenberger, Juliane Scharnweber, Andy Eschke, Tom Marr, Uta Kühn, Hansjörg Klauß
Publikováno v:
Metals, Vol 1, Iss 1, Pp 79-97 (2011)
An alternative deformation technique was applied to a composite made of titanium and an aluminium alloy in order to achieve severe plastic deformation. This involves accumulative swaging and bundling. Furthermore, it allows uniform deformation of a c
Externí odkaz:
https://doaj.org/article/c57162a845b243c7a7c32cf38ac782c6
Publikováno v:
Technologies, Vol 4, Iss 4, p 34 (2016)
The compression behavior of different 316L steel cellular dodecahedron structures with different density values were studied. The 316L steel structures produced using the selective laser melting process has four different geometries: single unit cell
Externí odkaz:
https://doaj.org/article/7f91837b604c423180a30f88dd820026
Autor:
Jan Romberg, Jens Freudenberger, Hansjörg Bauder, Georg Plattner, Hans Krug, Frank Holländer, Juliane Scharnweber, Andy Eschke, Uta Kühn, Hansjörg Klauß, Carl-Georg Oertel, Werner Skrotzki, Jürgen Eckert, Ludwig Schultz
Publikováno v:
Metals, Vol 6, Iss 2, p 30 (2016)
Co-deformation of Al and Ti by accumulative roll bonding (ARB) with intermediate heat treatments is utilized to prepare multi-layered Ti/Al sheets. These sheets show a high specific strength due to the activation of various hardening mechanisms impos
Externí odkaz:
https://doaj.org/article/77793c34e1884a6db968deef34f50607