Philippi, B.; Kirchlechner, C.; Micha, J.-S.; Dehm, G.: Size and orientation dependent mechanical behavior of body-centered tetragonal Sn at 0.6 of the melting temperature. Acta Materialia 115, pp. 76 - 82 (2016)
Imrich, P. J.; Kirchlechner, C.; Dehm, G.: Influence of inclined twin boundaries on the deformation behavior of Cu micropillars. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 642, pp. 65 - 70 (2015)
Imrich, P. J.; Kirchlechner, C.; Kiener, D.; Dehm, G.: In situ TEM microcompression of single and bicrystalline samples: insights and limitations. JOM-Journal of the Minerals Metals & Materials Society 67 (8), pp. 1704 - 1712 (2015)
Imrich, P. J.; Kirchlechner, C.; Kiener, D.; Dehm, G.: Internal and external stresses: in situ TEM compression of Cu bicrystals containing a twin boundary. Scripta Materialia 100, pp. 94 - 97 (2015)
Kapp, M. W.; Kapp, M. W.; Kirchlechner, C.; Pippan, R.; Dehm, G.: Importance of dislocations pile-ups on the mechanical properties and the Bauschinger effect in micro cantilevers. Journal of Materials Research 30 (6), pp. 791 - 797 (2015)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Can micro-scale fracture tests provide reliable fracture toughness values? A case study in silicon. Journal of Materials Research 30 (5), pp. 686 - 698 (2015)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
The aim of the work is to develop instrumentation, methodology and protocols to extract the dynamic strength and hardness of micro-/nano- scale materials at high strain rates using an in situ nanomechanical tester capable of indentation up to constant strain rates of up to 100000 s−1.
This project deals with the phase quantification by nanoindentation and electron back scattered diffraction (EBSD), as well as a detailed analysis of the micromechanical compression behaviour, to understand deformation processes within an industrial produced complex bainitic microstructure.
Within this project, we will use a green laser beam source based selective melting to fabricate full dense copper architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional copper lattice architectures, under both quasi-static and dynamic loading conditions.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.