Breaking the high-temperature strength-ductility trade-off in TiAl alloys through microstructural optimization

G Zheng, B Tang, S Zhao, J Wang, Y Xie… - International Journal of …, 2023 - Elsevier
Designing a novel microstructure with higher strength-ductility than lamellar microstructure
(LM), which has been considered the most valuable engineering application in the service …

[HTML][HTML] An efficient and robust approach to determine material parameters of crystal plasticity constitutive laws from macro-scale stress–strain curves

K Sedighiani, M Diehl, K Traka, F Roters… - International Journal of …, 2020 - Elsevier
A severe obstacle for the routine use of crystal plasticity models is the effort associated with
determining their constitutive parameters. Obtaining these parameters usually requires time …

Study of dislocation-twin boundary interaction mechanisms in plastic deformation of TWIP steel by discrete dislocation dynamics and dislocation density-based …

X Guo, C Sun, C Wang, J Jiang, MW Fu - International Journal of Plasticity, 2021 - Elsevier
Deformation twins contribute to the unique deformation behaviors and characteristics in the
plastic deformation of TWIP steels since twin boundary (TB) blocks the movement of …

The grain size effect on strain hardening and necking instability revisited from the dislocation density evolution approach

IS Yasnikov, Y Kaneko, M Uchida… - Materials Science and …, 2022 - Elsevier
Revisiting the classical topic of the strain hardening behaviour from a perspective of the
analytical model based on the evolution of dislocation density with strain, we extended the …

A general steady-state creep model incorporating dislocation static recovery for pure metallic materials

X Xiao, S Li, L Yu - International Journal of Plasticity, 2022 - Elsevier
In this work, a mechanistic steady-state creep model is proposed for pure metallic materials
to characterize the evolution of macroscopic creep strain rate as a function of the testing …

A self-consistent plasticity theory for modeling the thermo-mechanical properties of irradiated FCC metallic polycrystals

X Xiao, D Song, J Xue, H Chu, H Duan - … of the Mechanics and Physics of …, 2015 - Elsevier
A self-consistent theoretical framework is developed to model the thermo-mechanical
behaviors of irradiated face-centered cubic (FCC) polycrystalline metals at low to …

Irradiation hardening for metallic materials

X Xiazi, S Dingkun, C Haijian, XUE Jianming, D Huiling - 力学进展, 2015 - lxjz.cstam.org.cn
Investigations on irradiation hardening of metallic materials have much sig-nificance for the
design of anti-irradiation materials and engineering applications. Both irradiation-induced …

[HTML][HTML] An experimentally validated dislocation density based computational framework for predicting microstructural evolution in cold spray process

S Msolli, ZQ Zhang, DHL Seng, Z Zhang, J Guo… - International Journal of …, 2021 - Elsevier
We present an experimentally validated computational model for microstructural evolution in
the cold spray additive manufacturing process of Al6061 alloy coating. The microstructural …

Physically based crystal plasticity FEM including geometrically necessary dislocations: numerical implementation and applications in micro-forming

H Zhang, X Dong - Computational Materials Science, 2015 - Elsevier
Due to size effects, the conventional material constitutive models are no longer valid in the
investigation of micro-forming processes. In this work, a nonlocal physically based crystal …

[图书][B] Dislocation mechanism-based crystal plasticity: theory and computation at the micron and submicron scale

Z Zhuang, Z Liu, Y Cui - 2019 - books.google.com
Dislocation Based Crystal Plasticity: Theory and Computation at Micron and Submicron
Scale provides a comprehensive introduction to the continuum and discreteness dislocation …