4.7 Article

Bidirectional transformation enabled improvement in strength and ductility of metastable Fe50Mn30Co10Cr10 complex concentrated alloy under dynamic deformation

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Materials Science, Multidisciplinary

Towards stacking fault energy engineering in FCC high entropy alloys

Tasneem Z. Khan et al.

Summary: Stacking Fault Energy (SFE), an intrinsic property of alloys, plays a crucial role in governing the plastic deformation mechanisms in fcc alloys. In this study, a combination of DFT calculations, machine learning, and physics-based models is utilized to predict the SFE in the high-entropy alloy space. The developed model accurately predicts the SFE of arbitrary compositions and enables the exploration of new alloys with interesting mechanical behavior.

ACTA MATERIALIA (2022)

Article Engineering, Mechanical

Low cycle fatigue behaviour of non-equiatomic TRIP dual-phase Fe50Mn30Co10Cr10 high entropy alloy

Fateh Bahadur et al.

Summary: The low cycle fatigue behavior of Fe50Mn30Co10Cr10 high entropy alloy is characterized by deformation-induced martensitic transformation and extensive twinning, with multiple deformation mechanisms like planar slip and deformation twinning contributing to a hierarchically refined microstructure. This provides a pathway for microstructural engineering to achieve excellent tensile and low cycle fatigue performance of Fe50Mn30Co10Cr10.

INTERNATIONAL JOURNAL OF FATIGUE (2022)

Article Engineering, Mechanical

Temperature-dependent universal dislocation structures and transition of plasticity enhancing mechanisms of the Fe40Mn40Co10Cr10 high entropy alloy

Jin-Kyung Kim et al.

Summary: An in-depth characterization of deformation defects in the FCC Fe40Mn40Co10Cr10 high entropy alloy at room temperature and subzero temperature reveals similar deformation mechanisms and dislocation structures at both temperatures, with higher strain hardening rate observed at subzero temperature.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Engineering, Mechanical

Enhanced strength-ductility synergy via novel bifunctional nano-precipitates in a high-entropy alloy

Liyuan Liu et al.

Summary: A new Ni-35(CoFe)(55)V5Nb5 high-entropy alloy with a novel bifunctional L-12-Ni3Nb nano-precipitate was developed to enhance the strength and ductility synergy of the alloy, showing high yield strength, ultimate tensile strength, and remarkable elongation. The novel nano-precipitates play a dual role in improving the alloy properties through precipitation strengthening and lowering the stacking fault energy for better work-hardening ability and plasticity.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Engineering, Mechanical

Atomistic interpretation of extra temperature and strain-rate sensitivity of heterogeneous dislocation nucleation in a multi-principal-element alloy

Shi-Cheng Dai et al.

Summary: The incipient plasticity of crystals is influenced by pre-existing crystalline defects, which are formed during materials fabrication and processing and closely related to the mechanical properties. Through atomistic exploration and continuum-level mechanistic modeling, this study investigates the nucleation behavior of heterogeneous dislocations in different materials and reveals the extra thermal softening and strain-rate sensitivity in a multi-principal-element alloy, which can be attributed to the high total entropy and small activation volume of the alloy.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Materials Science, Multidisciplinary

Dynamically reversible shear transformations in a CrMnFeCoNi high-entropy alloy at cryogenic temperature

Kaisheng Ming et al.

Summary: Under extremely low temperature, the CrMnFeCoNi high-entropy alloy exhibits dynamically reversible shear transformations, leading to the formation of dynamic nano-laminated dual-phase structures. These transformations enhance the strength, strain-hardening ability, and ductility of the alloy, providing a new approach to tackle the strength-ductility dilemma.

ACTA MATERIALIA (2022)

Article Engineering, Mechanical

Temperature effect on tensile behavior of an interstitial high entropy alloy: Crystal plasticity modeling

Xu Zhang et al.

Summary: Previous experiments have shown that coarse-grained interstitial high entropy alloys (iHEAs) exhibit higher yield stress and better strain hardening at cryogenic conditions compared to room temperature. In this study, a micromechanism-based crystal plasticity model is developed to investigate the temperature effect on the tensile behavior of iHEAs. The developed constitutive model is verified by comparing experimental results with simulated stress-strain curves and martensite volume fraction. The contributions of different strengthening mechanisms and grain size effects are quantified to understand the temperature dependence of the iHEA's yield stress.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Engineering, Mechanical

Effect of nickel addition on enhancing nano-structuring and suppressing TRIP effect in Fe40Mn40Co10Cr10 high entropy alloy during high-pressure torsion

Avanish Kumar Chandan et al.

Summary: This study reveals the effect of nickel addition on the deformation mechanism and hardness evolution in a high entropy alloy during high-pressure torsion processing. The addition of nickel leads to a transition in the plasticity mechanism and an increase in the free energy of phase transformation, resulting in enhanced nano-structuring. The nickel-added alloy shows higher dislocation density and greater extent of nano-structuring, leading to better hardening ability during high-pressure torsion.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Engineering, Mechanical

Abnormal hardening and amorphization in an FCC high entropy alloy under extreme uniaxial tension

Kun Jiang et al.

Summary: This study investigates the mechanical responses and microscopic observations of a face-centered cubic high entropy alloy under different loading conditions. The results reveal a transition of plasticity mechanisms as the strain increases, including twinning, detwinning-induced localization, nanoscale phase transformation, and amorphization. The hindrance of twin boundaries to localized band propagation and the emission of more dislocations from body-centered cubic phases result in a second rise in hardening. The plasticity increases during the crystal to amorphization transition, possibly due to severe lattice distortion in areas with super-dense dislocations. Molecular dynamic simulations provide a deeper understanding of the phase transition mechanisms.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Engineering, Mechanical

Si-addition contributes to overcoming the strength-ductility trade-off in high-entropy alloys

Daixiu Wei et al.

Summary: This study demonstrates that the addition of silicon to CoCrFeNi HEA can improve its performance by maintaining a single-phase FCC structure while simultaneously increasing strength and ductility. The addition of silicon enhances solid solution strengthening, reduces SFE, and improves dislocation behavior and plastic deformation mechanisms.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Engineering, Mechanical

Achieving exceptional strength-ductility synergy in a complex-concentrated alloy via architected heterogeneous grains and nano-sized precipitates

Jiantao Fan et al.

Summary: The development of alloys with excellent strength-ductility synergy has long been a research theme for material scientists. This study introduces a heterogeneously-grained microstructure containing recrystallized ultrafine and fine grains with dense nano-sized precipitates into a Co-free complex-concentrated alloy. The alloy exhibits ultra-high yield and tensile strength, accompanied by remarkable uniform elongation. Strain partition and hetero-deformation-induced stress accumulation contribute to the outstanding strength and ductility of the alloy.

INTERNATIONAL JOURNAL OF PLASTICITY (2022)

Article Physics, Applied

The effect of Si and Ge on the elastic properties and plastic deformation modes in high- and medium-entropy alloys

Raquel Lizarraga et al.

Summary: Quantum mechanics modeling was used to investigate the effects of Ge and Si solute elements on the elastic properties and plastic deformation modes in high-entropy and medium-entropy alloys. The study revealed that the activated deformation modes in all alloys studied are the stacking fault mode (dominant) and the full-slip mode (secondary), with twining becoming favored as the concentrations of Ge and Si increase. The calculated trends for Young's and shear modulus as well as lattice parameters were verified by measurements.

APPLIED PHYSICS LETTERS (2021)

Article Materials Science, Multidisciplinary

Strain rate sensitive microstructural evolution in a TRIP assisted high entropy alloy: Experiments, microstructure and modeling

Ravi Sankar Haridas et al.

Summary: The compressive response of a novel Fe38.5Mn20Co20Cr15Si5Cu1.5 high entropy alloy fabricated by laser powder bed fusion was studied at different strain rates. The mechanical response and work hardening rate were found to be correlated with martensitic transformation, phase evolution, and adiabatic heating. Experimental results showed the best correlation with the Khan-Liu model among existing empirical constitutive models.

MECHANICS OF MATERIALS (2021)

Article Nanoscience & Nanotechnology

The effect of strain rate on mechanical properties and microstructure of a metastable FeMnCoCr high entropy alloy

Z. F. He et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2020)

Article Engineering, Mechanical

High hardness and fatigue resistance of CoCrFeMnNi high entropy alloy films with ultrahigh-density nanotwins

Ze Wang et al.

INTERNATIONAL JOURNAL OF PLASTICITY (2020)

Article Engineering, Mechanical

Study of the plastic deformation mechanism of TRIP-TWIP high entropy alloys at the atomic level

Mehran Bahramyan et al.

INTERNATIONAL JOURNAL OF PLASTICITY (2020)

Article Chemistry, Physical

High strain rate compression behaviour of single phase CoCuFeMnNi high entropy alloy

Reshma Sonkusare et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2020)

Article Materials Science, Multidisciplinary

Revisiting the first Sandia Fracture Challenge with transient deformation heating and strain localization considerations

Zach Huber et al.

INTERNATIONAL JOURNAL OF FRACTURE (2020)

Article Engineering, Mechanical

Strength and ductility of CrFeCoNiMo alloy with hierarchical microstructures

Kaisheng Ming et al.

INTERNATIONAL JOURNAL OF PLASTICITY (2019)

Article Physics, Multidisciplinary

Nonbasal Slip Systems Enable a Strong and Ductile Hexagonal-Close-Packed High-Entropy Phase

Yeqiang Bu et al.

PHYSICAL REVIEW LETTERS (2019)

Article Engineering, Mechanical

Simultaneously enhancing strength and ductility of a high-entropy alloy via gradient hierarchical microstructures

M. N. Hasan et al.

INTERNATIONAL JOURNAL OF PLASTICITY (2019)

Article Materials Science, Multidisciplinary

High-entropy CoCrFeMnNi alloy subjected to high-strain-rate compressive deformation

Shao-Pu Tsai et al.

MATERIALS CHARACTERIZATION (2019)

Article Materials Science, Multidisciplinary

Effects of Adiabatic Heating and Strain Rate on the Dynamic Response of a CoCrFeMnNi High-Entropy Alloy

G. C. Soares et al.

JOURNAL OF DYNAMIC BEHAVIOR OF MATERIALS (2019)

Article Materials Science, Multidisciplinary

Thermal activation parameters of plastic flow reveal deformation mechanisms in the CrMnFeCoNi high-entropy alloy

G. Laplanche et al.

ACTA MATERIALIA (2018)

Review Materials Science, Multidisciplinary

High-entropy alloys and metallic nanocomposites: Processing challenges, microstructure development and property enhancement

Amit S. Sharma et al.

MATERIALS SCIENCE & ENGINEERING R-REPORTS (2018)

Article Nanoscience & Nanotechnology

Mechanical response and deformation behavior of Al0.6CoCrFeNi high-entropy alloys upon dynamic loading

L. Wang et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2018)

Article Materials Science, Multidisciplinary

Strain Rate Sensitivity of a TRIP-Assisted Dual-Phase High-Entropy Alloy

Silva Basu et al.

FRONTIERS IN MATERIALS (2018)

Article Chemistry, Multidisciplinary

Bidirectional Transformation Enables Hierarchical Nanolaminate Dual-Phase High-Entropy Alloys

Wenjun Lu et al.

ADVANCED MATERIALS (2018)

Review Materials Science, Multidisciplinary

A critical review of high entropy alloys and related concepts

D. B. Miracle et al.

ACTA MATERIALIA (2017)

Article Materials Science, Multidisciplinary

A TRIP-assisted dual-phase high-entropy alloy: Grain size and phase fraction effects on deformation behavior

Zhiming Li et al.

ACTA MATERIALIA (2017)

Article Materials Science, Multidisciplinary

High strain-rate compressive deformation behavior of the Al0.1CrFeCoNi high entropy alloy

N. Kumar et al.

MATERIALS & DESIGN (2015)

Article Mechanics

Ductility of 304 stainless steel under pulsed uniaxial loading

Graham W. Cullen et al.

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES (2013)

Article Materials Science, Multidisciplinary

Strength and ductility of 316L austenitic stainless steel strengthened by nano-scale twin bundles

F. K. Yan et al.

ACTA MATERIALIA (2012)

Review Materials Science, Multidisciplinary

High-Strain-Rate Deformation: Mechanical Behavior and Deformation Substructures Induced

George T. (Rusty) Gray

ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 42 (2012)

Article Nanoscience & Nanotechnology

Experimental study on the martensitic transformation in AISI 304 steel sheets subjected to tension under wide ranges of strain rate at room temperature

J. A. Rodriguez-Martinez et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2011)

Article Nanoscience & Nanotechnology

Influence of addition elements on the stacking-fault energy and mechanical properties of an austenitic Fe-Mn-C steel

A. Dumay et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2008)

Article Materials Science, Multidisciplinary

Effect of strain rate on the strain-induced γ→α′-martensite transformation and mechanical properties of austenitic stainless steels

J Talonen et al.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2005)

Article Nanoscience & Nanotechnology

Microstructural development in equiatomic multicomponent alloys

B Cantor et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2004)

Article Materials Science, Multidisciplinary

Movement of γ/ε interfaces and coalescence of ε martensite variants under the tensile stress in an Fe-24 wt Pct Mn alloy

YK Lee

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2001)