Chen, T.; Lu, W.; Li, J.; Chen, S.; Li, C.; Weng, G. J.: Tailoring tensile ductility of thin film by grain size graded substrates. International Journal of Solids and Structures 166, pp. 124 - 134 (2019)
Liu, C.; Lu, W.; Weng, G. J.; Li, J.: A cooperative nano-grain rotation and grain-boundary migration mechanism for enhanced dislocation emission and tensile ductility in nanocrystalline materials. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 756, pp. 284 - 290 (2019)
Li, J.; Weng, G. J.; Chen, S.; Wu, X.: On strain hardening mechanism in gradient nanostructures. International Journal of Plasticity 88, pp. 89 - 107 (2017)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
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.
Copper is widely used in micro- and nanoelectronics devices as interconnects and conductive layers due to good electric and mechanical properties. But especially the mechanical properties degrade significantly at elevated temperatures during operating conditions due to segregation of contamination elements to the grain boundaries where they cause…
In this project we work on correlative atomic structural and compositional investigations on Co and CoNi-based superalloys as a part of SFB/Transregio 103 project “Superalloy Single Crystals”. The task is to image the boron segregation at grain boundaries in the Co-9Al-9W-0.005B alloy.
This project aims to investigate the dynamic hardness of B2-iron aluminides at high strain rates using an in situ nanomechanical tester capable of indentation up to constant strain rates of up to 100000 s−1 and study the microstructure evolution across strain rate range.