Revealing extreme twin-boundary shear deformability in metallic nanocrystals

Q Zhu, L Kong, H Lu, Q Huang, Y Chen, Y Liu… - Science …, 2021 - science.org
Metals containing abundant coherent twin boundaries (TBs) are able to sustain substantial
plastic deformation without fracture due to shear-induced TB migration and sliding …

Columnar grain-driven plasticity and cracking in nanotwinned FCC metals

Q Fang, F Sansoz - Acta Materialia, 2021 - Elsevier
The mechanisms of strengthening and plasticity in columnar-grained metals with
preferentially oriented nano-sized twins have been examined traditionally by considering …

Enhanced irradiation tolerance of Fe30Cr25Ni20Co15Mn10 high-entropy alloy via nanotwin boundaries

Y Zhang, WQ Jiang, A Gokhman, JJ Yang, K Shi… - Journal of Nuclear …, 2021 - Elsevier
High-entropy alloys (HEAs) have been considered as a promising candidate for nuclear
engineering due to their intriguing irradiation tolerance. The microstructure stabilities …

Molecular dynamics studies on formation of stacking fault tetrahedra in FCC metals

AK Panda, R Divakar, A Singh… - Computational Materials …, 2021 - Elsevier
The formation of stacking fault tetrahedra (SFT) based on the vacancy clustering mechanism
and Frank loop in case of face centered cubic (FCC) metals and alloys is widely accepted …

Collapse of stacking fault tetrahedron and dislocation evolution in copper under shock compression

Q Zhu, JL Shao, H Pan, P Wang - Journal of Nuclear Materials, 2021 - Elsevier
The stacking fault tetrahedron (SFT) is frequently observed in irradiated materials, which
distinctly affects the mechanical properties of matrix materials. This work focuses on the …

Enhanced defect annihilation capability of the graphene/copper interface: An in situ study

KM Yang, PZ Tang, Q Zhang, HY Ma, EQ Liu, M Li… - Scripta Materialia, 2021 - Elsevier
It is well known that energetic heavy ion irradiations can often induce defects and ultimately
lead to material degradations. Interfaces, such as high-angle grain boundaries (HAGBs), are …

Understanding the Radiation Resistance Mechanisms of Nanocrystalline Metals from Atomistic Simulation

L Zhang - Metals, 2021 - mdpi.com
Metallic materials produce various structural defects in the radiation environment, resulting
in serious degradation of material properties. An important way to improve the radiation …

Phase transformation and enhanced blue photoluminescence of zirconium oxide poly-crystalline thin film induced by Ni ion beam irradiation

V Chauhan, D Gupta, N Koratkar, R Kumar - Scientific Reports, 2021 - nature.com
Swift heavy ions (SHI) irradiation of Nickel (Ni) beam with different ions fluence bring the
modifications in the functional properties of radio frequency (RF) grown zirconium oxide …

Microstructure investigations of Fe50Mn30Co10Cr10 dual–phase high–entropy alloy under Fe ions irradiation

J Wang, J Chai, H Zhang, P Tai, C Liu, L Niu… - Journal of Nuclear …, 2021 - Elsevier
Abstract An Fe 50 Mn 30 Co 10 Cr 10 dual–phase high–entropy alloy (DP–HEA) was
irradiated at room temperature with 3 MeV Fe ions to a dose of 50 displacement per atom …

Improvement of Ag films with highly (111) surface orientation for metal direct bonding technique: Nanotwinned structure and ion bombardment effect

LP Chang, JJ Wang, FY Ouyang - Materials Chemistry and Physics, 2021 - Elsevier
High-density nanotwinned structure are introduced into Ag films with over 95% of (111)
surface orientation. Different substrate biases were applied to the nanotwinned Ag films …