Recent progress in gradient-structured metals and alloys

W Ji, R Zhou, P Vivegananthan, MS Wu, H Gao… - Progress in Materials …, 2023 - Elsevier
Gradient structures found in biological materials have served as a source of inspiration for
scientists seeking to enhance the performance of metals and alloys over the past decades …

Computational modeling of grain boundary segregation: A review

C Hu, R Dingreville, BL Boyce - Computational Materials Science, 2024 - Elsevier
Nearly all metals, alloys, ceramics, and their associated composites are polycrystalline in
nature, with grain boundaries that separate well-defined crystalline regions that influence …

A quasi-in-situ EBSD study of the thermal stability and grain growth mechanisms of CoCrNi medium entropy alloy with gradient-nanograined structure

PC Zhao, B Guan, YG Tong, RZ Wang, X Li… - Journal of Materials …, 2022 - Elsevier
The thermal stability and mechanical properties of a gradient-nanograined structure (GNS)
CoCrNi medium entropy alloy (MEA) processed by ultrasonic surface rolling were studied by …

Effects of SMAT at cryogenic and room temperatures on the kink band and martensite formations with associated fatigue resistance in a β-metastable titanium alloy

P Maurel, L Weiss, P Bocher, T Grosdidier - Materials Science and …, 2021 - Elsevier
Abstract Surface Mechanical Attrition Treatment (SMAT) has been carried out at cryogenic
and room temperatures on a 5553 β-metastable Ti alloy to describe its effects on the …

Effects of ultrasonic shot peening followed by surface mechanical rolling on mechanical properties and fatigue performance of 2024 aluminum alloy

C Wang, X Liu, Q Song, K Tian, S Fei, H Deng… - Engineering Fracture …, 2024 - Elsevier
Aiming to improve the mechanical properties and fatigue performance of 2024 aluminum
alloy, the experimental investigations on composite treatment consisting of ultrasonic shot …

Abnormal grain growth behavior in gradient nanostructured titanium investigated by coupled quasi-in-situ EBSD experiments and phase-field simulations

W Peng, X Li, J Gao, C He, Y Zhang, T Lu, X Zhang… - Acta Materialia, 2024 - Elsevier
Gradient nanostructured (GNS) metals exhibit superior mechanical properties compared
with their counterparts containing a homogeneous microstructure. However, GNS materials …

Effects of thermal exposure on microstructure deformation and evolution of shot peened nickel-based single crystal superalloy

L Liu, S Sun, T Yuan, H Chen, J Li, Z Yue… - Surface and Coatings …, 2024 - Elsevier
Microstructure deformation and thermally activated microstructural evolution of nickel-based
single crystal (NBSC) superalloy subjected to shot peening (SP) were investigated. SP …

The modified wear resistance of uranium induced by ultrasonic surface rolling process

D Chen, Y Hu, L Guo, Y Chang, R Zeng, M Wang, B Su… - Wear, 2022 - Elsevier
With the development of the nuclear industry, uranium materials with better wear resistance
are demanded. This paper aims to demonstrate the effects of ultrasonic surface rolling …

[HTML][HTML] Shock-induced large-depth gradient microstructure in commercial pure titanium subjected to explosive hardening

Y Guo, Q Zhou, C Ran, R Liu, A Arab, Y Ren, P Chen - Materials & Design, 2022 - Elsevier
Explosive hardening of commercial pure titanium plate was conducted by a thin-layer high-
detonation-velocity explosive. The nanoindentation and Vickers hardness tests of the treated …

Gradient nanostructuring via compositional means

A Barrios, JE Nathaniel II, J Monti, Z Milne, DP Adams… - Acta Materialia, 2023 - Elsevier
Nanocrystalline metals are inherently unstable against thermal and mechanical stimuli,
commonly resulting in significant grain growth. Also, while these metals exhibit substantial …