Microstructure specific process chain design for the manufacturing of Al-Li-strips by means of twin-roll casting
Final Report Abstract
Rolling processes for conventional aluminium (Al) - lithium (Li) alloys quickly reach their limits due to the relatively poor formability of the material. This can be overcome by using twin roll casting to produce thin sheets. Further thermomechanical treatment, including hot or cold rolling, and heat treatment can be used to adjust the mechanical properties of Al-Li sheets produced by twin roll casting. The entire process chain requires detailed knowledge of the precipitation and dissolution behaviour during heating, soaking and cooling in order to be able to select the process parameters in a targeted manner. This project investigates the process chain of an Al-Cu-Li twin roll cast alloy, which ultimately achieves a hardness of around 180 HV1 by adjusting the heat treatment parameters for homogenization, hot rolling and age hardening. Both the hardness and the microstructure development are analysed along the process chain.
Publications
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HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY. METAL Conference Proeedings, 2022, 593-598. TANGER Ltd..
CIESLAR, Miroslav; KŘIVSKÁ, Barbora; KRÁLÍK, Rostislav; BAJTOŠOVÁ, Lucia; GRYDIN, Olexandr; STOLBCHENKO, Mykhailo & SCHAPER, Mirko
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Influence of casting methods on microstructure development of Al-Li alloy during constrained groove pressing. AIP Conference Proceedings, 2778, 020002. AIP Publishing.
Křivská, Barbora; Cieslar, Miroslav; Králík, Rostislav; Bajtošová, Lucia; Grydin, Olexandr; Stolbchenko, Mykhailo & Schaper, Mirko
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Numerical and Experimental Investigation of Twin-Roll Casting of Aluminum–Lithium Strips. The Minerals, Metals & Materials Series, 1031-1037. Springer Nature Switzerland.
Grydin, Olexandr; Garthe, Kai-Uwe; Yuan, Xueyang; Broer, Jette; Keßler, Olaf; Králík, Rostislav; Cieslar, Miroslav & Schaper, Mirko
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Process chain of a twin-roll cast aluminium-copper-lithium alloy. Production Engineering, 19(3-4), 473-483.
Mallow, Sina; Broer, Jette; Milkereit, Benjamin; Grydin, Olexandr; Hoyer, Kay-Peter; Garthe, Kai-Uwe; Milaege, Dennis; Boyko, Viktoriya; Schaper, Mirko & Kessler, Olaf
