Investigations of dislocation-type evolution and strain hardening during mechanical twinning in Fe-22Mn-0.6 C twinning-induced plasticity steel

H Zhi, C Zhang, S Antonov, H Yu, T Guo, Y Su - Acta Materialia, 2020 - Elsevier
In this study, for the first time, the evolution of geometrically necessary dislocation (GND) and
statistically stored dislocation (SSD) densities, as well as their roles in strain hardening …

Simultaneously enhancing strength-ductility synergy and strain hardenability via Si-alloying in medium-Al FeMnAlC lightweight steels

H Zhi, J Li, W Li, M Elkot, S Antonov, H Zhang, M Lai - Acta Materialia, 2023 - Elsevier
We studied the initial microstructures, mechanical responses and deformation-induced
microstructures of the medium-Al Fe-21Mn-6Al-1C-xSi (x= 0, 1.5, 3 wt.%) lightweight steels …

Pursuing ultrastrong and ductile medium entropy alloys via architecting nanoprecipitates-enhanced hierarchical heterostructure

SK Guo, ZL Ma, GH Xia, XY Li, ZQ Xu, WZ Li, XY Jin… - Acta Materialia, 2024 - Elsevier
Nanoprecipitate-strengthened medium/high entropy alloys (M/HEAs) with ultrahigh strengths
and unusual physical properties represent promising candidates for structural applications …

Relationship between strength and uniform elongation of metals based on an exponential hardening law

Z Zhang, Z Qu, L Xu, R Liu, P Zhang, Z Zhang… - Acta Materialia, 2022 - Elsevier
An exponential strain-hardening (ESH) model for single phase metals was established and
well verified by systematic experiments on Cu-Al alloys in an earlier study. In this report …

[HTML][HTML] Improving the strength-ductility synergy of carbon nanotubes reinforced Cu matrix composites through interfacial regulation

S Luo, B Chen, M Song, Z Zhang, J Yi, S Zhou… - Composites Part A …, 2023 - Elsevier
How to strengthen the interface bonding and alleviate the contradiction between the strength
and ductility of metal matrix composites is a long-standing open issue. Herein, continuous …

Enhanced mechanical properties by eutectic cells in AlSi10Mg-A promising paradigm for strengthening aluminum in additive manufacturing

J Fite, SE Prameela, J Slotwinski, TP Weihs - Materials Characterization, 2023 - Elsevier
AlSi10Mg, as-built by laser powder bed fusion, includes performance-enhancing refined
eutectic cells invariably paired with performance-impairing melt pool boundaries, where the …

Rate controlling deformation mechanisms in SS316L stainless steel manufactured using laser powder bed fusion technique

R Jain, M Yadava, A Tripathi, NP Gurao - International Journal of Plasticity, 2023 - Elsevier
We conducted uniaxial tensile strain rate jump tests to account for the strain rate controlling
mechanisms in the additively manufactured SS316L stainless steel. Special emphasis is …

Strain hardening recovery mediated by coherent precipitates in lightweight steel

SD Kim, SJ Park, JH Jang, J Moon, HY Ha, CH Lee… - Scientific reports, 2021 - nature.com
We investigated the effect of κ-carbide precipitates on the strain hardening behavior of aged
Fe–Mn-Al-C alloys by microstructure analysis. The κ-carbides-strengthened Fe–Mn-Al-C …

Critical role of κ-carbides in the multi-stage work hardening process of a lightweight austenitic steel

P Chen, QC Zhang, F Zhang, JH Du, F Shi… - Materials …, 2023 - Elsevier
The multi-stage work hardening process of an Fe-Mn-Al-C lightweight austenitic steel has
been experimentally examined, focusing on the critical role of κ-carbides. The inhibition of κ …

A general physics-based hardening law for single phase metals

Z Zhang, Z Qu, L Xu, R Liu, P Zhang, Z Zhang… - Acta Materialia, 2022 - Elsevier
A simple exponential strain hardening model (ESH) has been developed in the framework of
the Kocks-Mecking-Estrin formalism with a new microstructure-based parameter that …