Effect of grain size on the deformation mechanism and fracture behavior of a non-equiatomic CoCrNi alloy with low stacking fault energy

Peng, S.Y.; Tian, Y.Z.; Ni, Z.Y.; Lu, S.; Li, S.

doi:10.1016/j.ijplas.2024.104129

International Journal of Plasticity

2024

DOI: 10.1016/j.ijplas.2024.104129

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Effect of grain size on the deformation mechanism and fracture behavior of a non-equiatomic CoCrNi alloy with low stacking fault energy

S.Y. Peng,

Y.Z. Tian,

Z.Y. Ni

et al.

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2024

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Cited by 4 publications

References 83 publications

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Research on Mechanical Properties of High‐Manganese Steel Coating Manufactured by Coaxial Powder‐Feeding Laser Cladding

Zhao,

Peng,

Yang

et al. 2024

steel research int.

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Due to the process complexity of the high‐carbon high‐manganese steel (HMnS) in casting and arc welding, this article propose the coaxial powder‐feeding laser cladding (LC) of HMnS coating using self‐developed HMnS powders. Firstly, high‐carbon HMnS coatings are prepared on the 16Mn substrate using coaxial powder‐feeding LC technology. It has a single austenite phase, without large defects such as pores and cracks. Then, ultrasonic shock peening is used to harden the HMnS coating, and the mechanical properties such as microhardness, impact toughness, wear and tensile properties are measured, which prove that HMnS coating has excellent working hardening, plasticity, toughness, and wear resistance properties. Finally, transmission electron microscopy is used to investigate the coupling effects such as dislocations, multiple twinning, and stacking faults on the HMnS coating after tensile fracture (true strain 39.2%). The deformation strengthening mechanism based on the dynamic Hall–Petch effect is revealed. The research results provide a new method for the preparation of high‐carbon HMnS coatings, and a new idea for expanding the application of high‐carbon HMnS.

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Research on Mechanical Properties of High‐Manganese Steel Coating Manufactured by Coaxial Powder‐Feeding Laser Cladding

Zhao,

Peng,

Yang

et al. 2024

steel research int.

View full text Add to dashboard Cite

show abstract

Grain size dependence of microscopic strain distribution in a high entropy alloy at the onset of plastic deformation

Yang,

Xu,

Lunt

et al. 2024

Acta Materialia

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Notch strength of ductile materials with different work-hardening behaviors

Ma,

Qu,

Song

et al. 2024

Journal of Materials Research and Technology

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Effect of grain size on the deformation mechanism and fracture behavior of a non-equiatomic CoCrNi alloy with low stacking fault energy

Cited by 4 publications

References 83 publications

Research on Mechanical Properties of High‐Manganese Steel Coating Manufactured by Coaxial Powder‐Feeding Laser Cladding

Research on Mechanical Properties of High‐Manganese Steel Coating Manufactured by Coaxial Powder‐Feeding Laser Cladding

Grain size dependence of microscopic strain distribution in a high entropy alloy at the onset of plastic deformation

Notch strength of ductile materials with different work-hardening behaviors

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