Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Kristina Kittner"'
Publikováno v:
Metals, Vol 14, Iss 1, p 121 (2024)
This study investigates the cold formability of twin-roll cast and rolled magnesium strips, specifically focusing on AZ31 and ZAX210 alloys. The aim is to assess the suitability of these alloys for various forming processes. The mechanical properties
Externí odkaz:
https://doaj.org/article/f34db87fbcc74d80a4adef574fefe036
Autor:
Alexander Wolf, Niklas Küsters, Sven Bräunling, Daniel Weck, Kristina Kittner, Maik Gude, Ulrich Prahl, Alexander Brosius
Publikováno v:
Engineering Reports, Vol 4, Iss 7-8, Pp n/a-n/a (2022)
Abstract Modeling sheet metal forming of materials for lightweight construction requires an understanding of their plastic behavior in different loading directions. The presented work focuses on twin‐roll‐casted magnesium alloy AZ31. It is charac
Externí odkaz:
https://doaj.org/article/2727c9a95862486ba46fab338fe36ab5
Autor:
Kristina Kittner, Madlen Ullmann, Falko Arndt, Susanne Berndorf, Thorsten Henseler, Ulrich Prahl
Publikováno v:
Engineering Reports, Vol 4, Iss 7-8, Pp n/a-n/a (2022)
Abstract Twin roll casting (TRC) enables the production of magnesium strips in an economic manner. TRC has enormous potential for the production of thin strip material from magnesium alloys. However, a range of defects may arise during casting. Inter
Externí odkaz:
https://doaj.org/article/f27062f782954df59b6d978d893aa477
Publikováno v:
Metals, Vol 11, Iss 11, p 1771 (2021)
In this study, hot rolling trials were conducted on a twin-roll cast and homogenized magnesium alloy Mg-6.8Y-2.5Zn (WZ73). The WZ73 contains long period stacking ordered (LPSO) structures due to the ratio of Y and Zn content. Microstructural and text
Externí odkaz:
https://doaj.org/article/175741249ed447e9b7392b79f17183a7
Publikováno v:
Crystals, Vol 10, Iss 6, p 513 (2020)
In the present work, the microstructure and texture of a Mg–6.8Y–2.5Zn–0.4Zr sheet manufactured by twin-roll casting were investigated. The twin-roll cast state consisted of two apparent phases: the α-Mg matrix, which was made up of dobulites
Externí odkaz:
https://doaj.org/article/1c707cc43cf14b5b80bf360b9174709d
Autor:
Ulrich Prahl, Thorsten Henseler, Christina Krbetschek, David Rafaja, Madlen Ullmann, Kristina Kittner, Rudolf Kawalla
Publikováno v:
Procedia Manufacturing. 50:809-816
The dynamic recrystallization and changes in the preferred orientation of crystallites during hot rolling at 500 °C have been studied on a cast Mg-6.8Y-2.5Zn-0.3Zr (wt. %) alloy (WZ73) containing long-period stacking ordered (LPSO) phases. The recry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71ec1ac05449216323428b7af8b03dfb
https://doi.org/10.1016/j.promfg.2020.08.146
https://doi.org/10.1016/j.promfg.2020.08.146
Publikováno v:
Materials; Volume 15; Issue 21; Pages: 7499
The formability of magnesium alloys can be significantly improved by Ca as an alloying addition. Compared to conventional alloy sheets such as AZ31, texture modification can be found in rolled Mg-Ca sheets, which reveal a randomized orientation distr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f87796ac317f806add813c8076b963b2
https://doi.org/10.3390/ma15217499
https://doi.org/10.3390/ma15217499
Autor:
Matthias Schmidtchen, Rudolf Kawalla, Madlen Ullmann, Thorsten Henseler, Ulrich Prahl, Kristina Kittner
Publikováno v:
Materials Science Forum. 949:57-65
Deformation behavior of an as-cast Mg-6.8Y-2.5Zn-0.4Zr alloy during plane strain compression was characterized in present work by high-temperature testing. Based on the experimental data, the values of strain rate sensitivity, efficiency of power dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::104c7727c1efc71eb946363f6ab4f69d
https://doi.org/10.4028/www.scientific.net/msf.949.57
https://doi.org/10.4028/www.scientific.net/msf.949.57
Autor:
Kristina Kittner, Ulrich Prahl, Madlen Ullmann, Rudolf Kawalla, Thorsten Henseler, Anett Stöcker
Publikováno v:
Procedia Manufacturing. 27:203-208
In order to establish magnesium alloys in industrial applications, new alloy systems with an excellent property profile as well as suitable processing technologies are required. Magnesium alloys containing Ca offer a significantly improved formabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::937990924cf0b9098cefef62e9135b71
https://doi.org/10.1016/j.promfg.2018.12.065
https://doi.org/10.1016/j.promfg.2018.12.065
Publikováno v:
Materials; Volume 15; Issue 18; Pages: 6437
Magnesium sheet metal alloys offer a deformation asymmetry, which is strongly related to grain size and texture. In order to predict deformation behavior as well as to provide methods to eliminate anisotropy and yield asymmetry, a lot of effort is in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55497dd3f73cc6d50d29c7032143e2d6
https://doi.org/10.3390/ma15186437
https://doi.org/10.3390/ma15186437