Towards understanding the brittle–ductile transition in the extreme manufacturing

T Zhang, F Jiang, H Huang, J Lu, Y Wu… - … Journal of Extreme …, 2021 - iopscience.iop.org
The brittle–ductile transition (BDT) widely exists in the manufacturing with extremely small
deformation scale, thermally assisted machining, and high-speed machining. This paper …

[HTML][HTML] Recent advances in nanomechanical and in situ testing techniques: Towards extreme conditions

D Kiener, M Wurmshuber, M Alfreider… - Current Opinion in Solid …, 2023 - Elsevier
Nanoindentation based techniques were significantly enhanced by continuous stiffness
monitoring capabilities. In essence, this allowed to expand from point-wise discrete …

Achieving micron-scale plasticity and theoretical strength in Silicon

M Chen, L Pethö, AS Sologubenko, H Ma… - Nature …, 2020 - nature.com
As the backbone material of the information age, silicon is extensively used as a functional
semiconductor and structural material in microelectronics and microsystems. At ambient …

[HTML][HTML] Exploring the high-temperature deformation behavior of monocrystalline silicon–An advanced nanoindentation study

GJK Schaffar, D Tscharnuter, V Maier–Kiener - Materials & Design, 2023 - Elsevier
Knowing the mechanical behavior of silicon at elevated temperatures is crucial for many
high-temperature applications and processes. This work aims to expand the knowledge of …

[HTML][HTML] New ultra-high temperature nanoindentation system for operating at up to 1100 C

C Minnert, WC Oliver, K Durst - Materials & Design, 2020 - Elsevier
In this work a new ultra-high temperature (UHT) nanoindentation system for testing at up to
1100° C is presented. The system is capable to perform indents from small scale up to large …

[HTML][HTML] Multi-scale modeling method for polycrystalline materials considering grain boundary misorientation angle

Y Zhao, Q Song, H Ji, W Cai, Z Liu, Y Cai - Materials & Design, 2022 - Elsevier
Grain boundaries (GBs) are microstructures in polycrystalline materials, which influence the
mechanical properties of materials significantly. Simulation is an indispensable means to …

[HTML][HTML] Determination of critical resolved shear stresses associated with< a> slips in pure Zn and Zn-Ag alloys via micro-pillar compression

W Bednarczyk, M Wątroba, M Jain, K Mech… - Materials & Design, 2023 - Elsevier
The room-temperature plastic deformation behavior of pure Zn and Zn-Ag (0–2.2 at.%)
biodegradable alloys has been investigated via uniaxial in situ micro-pillar compression …

Exploring defect behavior and size effects in micron-scale germanium from cryogenic to elevated temperatures

M Chen, AS Sologubenko, JM Wheeler - Matter, 2023 - cell.com
Germanium displays enhanced carrier mobility under mechanical straining, which makes it
an important material for optoelectronics and ultrafast semiconductor devices. However, it is …

Microstructure dependence of stress relaxation behavior of powder-processed Ni‐base superalloys

L Li, E Sun, S Tin - Materials Science and Engineering: A, 2021 - Elsevier
The stress relaxation behavior at 700° C of two experimental and one commercial powder-
possessed Ni-base superalloys possessing different microstructural characteristics were …

The thermally activated deformation behaviour of single-crystalline microcast aluminium wires

S Verheyden, L Deillon, A Mortensen - Acta Materialia, 2022 - Elsevier
A microcasting process is used to produce high aspect ratio (> 30) monocrystalline pure
aluminium wires with a diameter between 14 and 115 µm. The role of thermal activation in …