Effects of RE (La, Ce) on fcc-bcc martensitic transformation of iron via Bain transformation path

Wang, Haiyan; Gao, Xueyun; Lü, Xing; Zhai, Tingting; Lv, Meng; Ren, Huiping; Wei, Huihui; Zhi, Junge

doi:10.1016/j.jre.2021.09.023

Journal of Rare Earths

2022

DOI: 10.1016/j.jre.2021.09.023

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Effects of RE (La, Ce) on fcc-bcc martensitic transformation of iron via Bain transformation path

Haiyan Wang

Xueyun Gao

Xing Lü

et al.

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2024

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Cited by 5 publications

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Atomic Simulation of Deformation Behavior of Polycrystalline Co₃₀Fe_16.67Ni_36.67Ti_16.67 High Entropy Alloy Under Uniaxial Loading

Fu,

Li,

Wang

et al. 2024

Physica Status Solidi (b)

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Mechanical behavior and plastic deformation mechanism of a new type of Co30Fe16.67Ni36.67Ti16.67 high entropy alloys (HEAs) have been calculated by the molecular dynamics method. The results show that the polycrystalline Co30Fe16.67Ni36.67Ti16.67 HEA has remarkable tensile plasticity and anisotropy. When the crystallographic orientation of the grain is <001>, the plastic deformation mechanism is face‐centered cubic (FCC)→body‐centered cubic (BCC) transformation and deformation twins. Grain boundary and vacancy reduce the nucleation energy of FCC→BCC phase transition, making BCC phase nucleation easy and growing in a shear manner, eventually forming deformation twins in the BCC phase. When the crystallographic orientation of grain is <110> and <111>, the plastic deformation mechanism is stacking faults, FCC→hexagonal‐close‐packed (HCP) phase transformation, and deformation twins. The motion of Shockley dislocation leads to the stacking fault, intrinsic stacking fault leads to the FCC→HCP phase transition, extrinsic stratification fault leads to the twin deformation, and the grain refining occurs during the tension process. Temperature and strain rate also have strong effects on tensile strength and elastic modulus. These results will provide a theoretical basis for the development of the HEAs and expand their application.

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Atomic Simulation of Deformation Behavior of Polycrystalline Co₃₀Fe_16.67Ni_36.67Ti_16.67 High Entropy Alloy Under Uniaxial Loading

Fu,

Li,

Wang

et al. 2024

Physica Status Solidi (b)

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show abstract

Probing local difference of martensite formation: a study on localized deformation modes in drawn 304H stainless steel wires

Peng,

Hu,

Liu

et al. 2024

J. Iron Steel Res. Int.

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Bain distortion of noble metal thin films that exhibit fcc, bct, and reoriented fcc structures

Ono,

Tamura

2024

Computational Materials Science

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Effects of RE (La, Ce) on fcc-bcc martensitic transformation of iron via Bain transformation path

Cited by 5 publications

References 51 publications

Atomic Simulation of Deformation Behavior of Polycrystalline Co₃₀Fe_16.67Ni_36.67Ti_16.67 High Entropy Alloy Under Uniaxial Loading

Atomic Simulation of Deformation Behavior of Polycrystalline Co₃₀Fe_16.67Ni_36.67Ti_16.67 High Entropy Alloy Under Uniaxial Loading

Probing local difference of martensite formation: a study on localized deformation modes in drawn 304H stainless steel wires

Bain distortion of noble metal thin films that exhibit fcc, bct, and reoriented fcc structures

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About

Effects of RE (La, Ce) on fcc-bcc martensitic transformation of iron via Bain transformation path

Cited by 5 publications

References 51 publications

Atomic Simulation of Deformation Behavior of Polycrystalline Co30Fe16.67Ni36.67Ti16.67 High Entropy Alloy Under Uniaxial Loading

Atomic Simulation of Deformation Behavior of Polycrystalline Co30Fe16.67Ni36.67Ti16.67 High Entropy Alloy Under Uniaxial Loading

Probing local difference of martensite formation: a study on localized deformation modes in drawn 304H stainless steel wires

Bain distortion of noble metal thin films that exhibit fcc, bct, and reoriented fcc structures

Contact Info

Product

Resources

About

Atomic Simulation of Deformation Behavior of Polycrystalline Co₃₀Fe_16.67Ni_36.67Ti_16.67 High Entropy Alloy Under Uniaxial Loading

Atomic Simulation of Deformation Behavior of Polycrystalline Co₃₀Fe_16.67Ni_36.67Ti_16.67 High Entropy Alloy Under Uniaxial Loading