Mechanical properties for irradiated face-centred cubic nanocrystalline metals

Xiao, Xiazi; Song, Dingkun; Chu, Hongling; Xue, Jianming; Duan, Huiling

doi:10.1098/rspa.2014.0832

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Network Dislocation Interaction and Pile-up By Gbs1

Constitutive Equations Of Crystalline Materials With Irradia...1

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2015

2024

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Cited by 12 publications

(2 citation statements)

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“…(24), it can be seen that the effect of GBs on strength hardening increases when the grain size gets small. It should be noted that besides the mean grain size, the grain size distribution is an important factor to influence the effective yield stress of polycrystals (Berbenni et al, 2007;Niewczas and Hoagland, 2009;Nicaise et al, 2011;Xiao et al, 2015c). However, the real distribution of grain size is not available so far.…”

Section: Network Dislocation Interaction and Pile-up By Gbsmentioning

confidence: 95%

Mechanical behaviors of irradiated FCC polycrystals with nanotwins

Xiao

Song

Chu

et al. 2015

International Journal of Plasticity

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Section: Network Dislocation Interaction and Pile-up By Gbsmentioning

confidence: 95%

Mechanical behaviors of irradiated FCC polycrystals with nanotwins

Xiao

Song

Chu

et al. 2015

International Journal of Plasticity

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“…where k 1 and k 2 designate parameters determining the multiplication and annihilation of dislocations, respectively. Besides the strengthening mechanisms mentioned above, irradiation-induced defects interact with the moving dislocation, contributing an important part to the hardening effect [50][51][52]. For irradiated AustSSs, it is established that the main defects are dislocation loops.…”

Section: Constitutive Equations Of Crystalline Materials With Irradia...mentioning

confidence: 99%

Model for deformation-induced martensitic transformation in irradiated materials

et al. 2023

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Deformation-induced martensitic transformation (DIMT) is commonly reported to be easily activated in irradiated materials, but the existing transformation kinetics models of DIMT hardly capture the irradiation effect. In this work, we develop a transformation kinetics model considering the effect of irradiation hardening, shear band evolution and the role of irradiation-induced voids. A crystal plasticity framework incorporating the newly developed transformation kinetics model is established. We show that the framework is capable of capturing the accelerated evolution of martensite volume fraction in both cases with and without irradiation-induced voids. Moreover, the framework successfully simulates two post-irradiation phenomena observed in experiments, i.e. the localized distribution of martensite fraction and the evolution of the dominant transformation pathway. The present work is one of the first attempts at the theoretical modelling of DIMT in irradiated materials, and has the potential to benefit the application of irradiation in tailoring the martensitic transformation behaviour.

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