Texture Evolution and Dynamic Recrystallization Behavior of Hybrid-Reinforced Titanium Matrix Composites: Enhanced Strength and Ductility

Qiu, Peikun; Han, Yuanfei; Huang, Guangfa; Le, Jianwen; Lei, Liming; Xiao, Lv; Lü, Weijie

doi:10.1007/s11661-020-05677-5

Cited by 18 publications

(3 citation statements)

References 55 publications

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“…In addition, dynamic globularization occurs earlier when the temperature elevates. From the shape of the curve, the theoretical globularization curves are similar to the dynamic recrystallization curves of many titanium alloys [ 25 , 26 , 27 ]. However, the above two processes are completely different.…”

Section: Resultsmentioning

confidence: 99%

Microstructure Control of Welded Joints of Dissimilar Titanium Alloys by Isothermal Forging

et al. 2020

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In this study, the welded joints of dissimilar titanium alloys Ti600/Ti-22Al-25Nb were strengthened by isothermal forging. Different deformation parameters, including temperature, deformation speed, and reduction, were chosen. By isothermal forging, the original coarse dendritic grains of the welded joints were broken up effectively to form a large number of equiaxed grains. Meanwhile, many second phases were precipitated in the grain. Additionally, the dynamic globularization kinetics of second phases within the welded joints were quantitatively characterized and investigated. The results showed that the dynamic globularization kinetics and globularization rate were sensitive to the deformation conditions, and were promoted by a reduced strain rate and an elevated deformation temperature.

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Section: Resultsmentioning

confidence: 99%

Microstructure Control of Welded Joints of Dissimilar Titanium Alloys by Isothermal Forging

et al. 2020

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“…Titanium matrix composites (TMCs) offer outstanding properties by effectively combining the ductility of titanium with the high elastic modulus and robust strength of the ceramic phase. Ceramic phases serve as a vital means of enhancing the hardness, strength, friction, and wear properties of titanium alloys [4][5][6] . Depending on the type of reinforcement, metal matrix composites can be categorized into two main groups: continuous reinforced composites and discontinuous reinforced composites.…”

Section: Introductionmentioning

confidence: 99%

Microstructural characterization and mechanical properties of (TiC+TiB)/TA15 composites prepared by an in-situ synthesis method

Zhang,

Cheng,

Xie

et al. 2024

China Foundry

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“…TITANIUM matrix composites (TMCs) are widely used in the aerospace and automotive industries due to their high specific strength, high specific modulus, and excellent creep and fatigue resistances at ambient and elevated temperatures. [1][2][3][4][5] Most studies on TMCs have focused on the mechanical properties and strengthening mechanism of reinforcement types based on the load-transfer mechanism. [6][7][8][9][10][11][12] The addition of ceramic greatly improved the strength of TMCs but sacrificed their ductility.…”

Section: Introductionmentioning

confidence: 99%

The Formation of $$ \left\{ {10\bar{1}2} \right\} $$ Deformation Twin in Hybrid TiB-TiC Reinforced Titanium Matrix Composites

Wang

Han

et al. 2020

Metall Mater Trans A

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Deformation twins play a significant role in the plastic deformation of titanium matrix composites and improve their ductility. In this work, 10 12 È É deformation twins nucleated in the parent grains with a hard orientation of prismatic slip and changed the local orientation become a soft orientation, resulting in a good balance between high strength (yield strength of 1068 ± 9 MPa and ultimate tensile strength of 1167 ± 1MPa) and high ductility (elongation of 8.7 ± 0.2 pct) at room temperature for hybrid TiB-TiC reinforced Ti-6Al-4V matrix composites. TiB, TiC and grain boundaries worked as a barrier to dislocation mobility, and resulted in different dislocation substructures distributing around the short TiB fibers and TiC particles. The strain incompatibility resulted in a high local stress concentration which promoted twin nucleation and influenced twin propagation. The nonuniform strain caused a stress gradient inside the grains, and the steep stress gradient hindered the twin propagation. Low stress was not enough to drive the dislocation slip of the twins and dislocation decomposition at the twin tips; thus, the growth of the deformation twins stopped in the parent grains.

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Texture Evolution and Dynamic Recrystallization Behavior of Hybrid-Reinforced Titanium Matrix Composites: Enhanced Strength and Ductility

Cited by 18 publications

References 55 publications

Microstructure Control of Welded Joints of Dissimilar Titanium Alloys by Isothermal Forging

Microstructure Control of Welded Joints of Dissimilar Titanium Alloys by Isothermal Forging

Microstructural characterization and mechanical properties of (TiC+TiB)/TA15 composites prepared by an in-situ synthesis method

The Formation of $$ \left\{ {10\bar{1}2} \right\} $$ Deformation Twin in Hybrid TiB-TiC Reinforced Titanium Matrix Composites

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