Evolution of dislocation and twin structures in Ti3Al during solidification

Gao, Yue; Gao, Tinghong; Li, Lianxin; Chen, Qian; Tian, Zean; Liang, Yongchao; Wang, Bei

doi:10.1016/j.vacuum.2021.110525

Cited by 17 publications

(4 citation statements)

References 53 publications

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“…The system was cooled to 200 K because this temperature ensures the complete solidification of the composite material, allowing for a more clear observation of the solidified state and microstructure. This phenomenon has been reported by numerous studies [30,46].…”

Section: Geometrical Modelsupporting

confidence: 77%

“…Different material microstructures result in different macroscopic properties [30]. The modeling of the composites with different SiC shapes resulted in different structural changes during the rapid solidification process of Cu/SiC composites.…”

Section: Distribution Of Fcc and Hcp Structuresmentioning

confidence: 99%

“…Rapid solidification technology has been extensively studied as a material preparation technique. Gao et al [30] investigated the formation mechanism of dislocations and twin structures of Ti 3 Al during rapid solidification using MD. According to the synthesis and decomposition of different types of dislocations, the formation and evolution of crystal defects under different models were analyzed.…”

Section: Introductionmentioning

confidence: 99%

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Molecular Dynamics Simulation on Solidification Microstructure and Tensile Properties of Cu/SiC Composites

Yan,

Lu,

Gao

et al. 2024

Molecules

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The shape of ceramic particles is one of the factors affecting the properties of metal matrix composites. Exploring the mechanism of ceramic particles affecting the cooling mechanical behavior and microstructure of composites provides a simulation basis for the design of high-performance composites. In this study, molecular dynamics methods are used for investigating the microstructure evolution mechanism in Cu/SiC composites containing SiC particles of different shapes during the rapid solidification process and evaluating the mechanical properties after cooling. The results show that the spherical SiC composites demonstrate the highest degree of local ordering after cooling. The more ordered the formation is of face-centered-cubic and hexagonal-close-packed structures, the better the crystallization is of the final composite and the less the number of stacking faults. Finally, the results of uniaxial tensile in three different directions after solidification showed that the composite containing spherical SiC particles demonstrated the best mechanical properties. The findings of this study provide a reference for understanding the preparation of Cu/SiC composites with different shapes of SiC particles as well as their microstructure and mechanical properties and provide a new idea for the experimental and theoretical research of Cu/SiC metal matrix composites.

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Section: Geometrical Modelsupporting

confidence: 77%

Section: Distribution Of Fcc and Hcp Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Molecular Dynamics Simulation on Solidification Microstructure and Tensile Properties of Cu/SiC Composites

Yan,

Lu,

Gao

et al. 2024

Molecules

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“… 10 Li et al described the effects of cooling rates on the amorphous structure formation and crystallization of liquid TiAl 11 and the formation of nanocrystals from undercooling TiAl melt and deformation behavior of nanocrystalline TiAl alloy under tensile loading conditions. 12 Recently, Gao et al 13 researched the evolution of dislocation and twin structures in Ti 3 Al during solidification. In addition, some studies on Ti 3 Al structural changes were carried out under high pressure conditions.…”

Section: Introductionmentioning

confidence: 99%

Analysis of grain size and five-fold twins during rapid solidification processes inTi₃Al alloy

Gao

Tian

2022

RSC Adv.

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Experimental and molecular dynamics studies on the mechanism of twinning formation in Fe-Al-based alloys during rapid solidification

Chen,

Zhang,

Wang

et al. 2024

Appl. Phys. A

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Evolution of dislocation and twin structures in Ti3Al during solidification

Cited by 17 publications

References 53 publications

Molecular Dynamics Simulation on Solidification Microstructure and Tensile Properties of Cu/SiC Composites

Molecular Dynamics Simulation on Solidification Microstructure and Tensile Properties of Cu/SiC Composites

Analysis of grain size and five-fold twins during rapid solidification processes inTi₃Al alloy

Experimental and molecular dynamics studies on the mechanism of twinning formation in Fe-Al-based alloys during rapid solidification

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Evolution of dislocation and twin structures in Ti3Al during solidification

Cited by 17 publications

References 53 publications

Molecular Dynamics Simulation on Solidification Microstructure and Tensile Properties of Cu/SiC Composites

Molecular Dynamics Simulation on Solidification Microstructure and Tensile Properties of Cu/SiC Composites

Analysis of grain size and five-fold twins during rapid solidification processes inTi3Al alloy

Experimental and molecular dynamics studies on the mechanism of twinning formation in Fe-Al-based alloys during rapid solidification

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Analysis of grain size and five-fold twins during rapid solidification processes inTi₃Al alloy