Nano-scale heterogeneity-driven metastability engineering in ferrous medium-entropy alloy induced by additive manufacturing

JM Park, P Asghari-Rad, A Zargaran, JW Bae, J Moon… - Acta Materialia, 2021 - Elsevier
Selective laser melting (SLM) offers unprecedented advantages in fabrication of metals and
alloys with complex geometry and unique microstructural features with hierarchical …

Small-scale mechanical testing

V Jayaram - Annual Review of Materials Research, 2022 - annualreviews.org
This article reviews recent developments in small-scale mechanical property testing with
some emphasis on intermediate (meso) length scales in complex microstructures and …

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 …

A sustainable ultra-high strength Fe18Mn3Ti maraging steel through controlled solute segregation and α-Mn nanoprecipitation

A Kwiatkowski da Silva, IR Souza Filho, W Lu… - Nature …, 2022 - nature.com
The enormous magnitude of 2 billion tons of alloys produced per year demands a change in
design philosophy to make materials environmentally, economically, and socially more …

Deformation-induced martensitic transformation kinetics in TRIP-assisted steels and high-entropy alloys

MJ Sohrabi, MS Mehranpour, A Heydarinia, A Kalhor… - Acta Materialia, 2024 - Elsevier
In this study, the sigmoidal kinetics of deformation-induced martensitic transformation (DIMT)
in the transformation-induced plasticity (TRIP)-assisted alloys, including metastable high …

Achieving exceptional work-hardening capability of additively-manufactured multiphase Fe-Mn alloys via multiple deformation mechanisms

P Liu, Q Huang, Q Shan, Z Jiao, Q Wang, Y Ma… - International Journal of …, 2024 - Elsevier
Abstract Laser-powder-bed-fusion (LPBF) fabricated Fe-Mn biodegradable alloys provide an
attractive prospect for orthopedic applications due to their good tensile strength and high …

Fe55Co17.5Ni10Cr12.5Mo5 High-Entropy Alloy with Outstanding Cryogenic Mechanical Properties Driven by Deformation-Induced Phase Transformation …

HD Park, JW Won, J Moon, HS Kim, H Sung… - Metals and Materials …, 2023 - Springer
Understanding the deformation-induced transformation-induced plasticity (TRIP) in high-
entropy alloys (HEAs) is critical for obtaining desired mechanical properties. In this study, the …

Quantitative investigation of strain partitioning and failure mechanism in ultrafine grained medium Mn steel through high resolution digital image correlation

W Yin, F Briffod, H Hu, K Yamazaki, T Shiraiwa… - Scripta Materialia, 2023 - Elsevier
Ultrafine grained medium Mn steel exhibits simultaneous high strength and ductility,
however, often showing Lüders deformation and discontinuous yielding phenomena. The …

Constitutive and transformation kinetics modeling of ε-, α′-Martensite and mechanical twinning in steels containing austenite

JS Aristeidakis, GN Haidemenopoulos - Acta Materialia, 2022 - Elsevier
In the present study, a physically based constitutive and transformation kinetics model of
stress assisted (SA) and strain induced (SI) ε-, α′-Martensite and twinning in steels …

Strain hardening analysis and deformation micromechanisms in high strength-high ductility metastable duplex stainless steels: Role of sustained stacking faults in the …

M Moallemi, SJ Kim, A Zarei-Hanzaki, E Farabi - Materials Characterization, 2023 - Elsevier
The present research deals with work hardening analysis of two types (4Mn & 8Mn) high
strength-high plasticity metastable duplex stainless steel (DSS). A three-stage (I, II, III) strain …