The influence of thermo-mechanical processing on the hardness and microstructure of Beta-C titanium

Kandra, J.T.; Neu, C E; Opet, Steven L.; Frazier, William E.

doi:10.1016/0956-716x(94)90277-1

Cited by 5 publications

(1 citation statement)

References 2 publications

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“…In this kind of alloy system, precipitation of α phase from a metastable β matrix leads to precipitation strengthening, whereby strength and toughness of the alloys can be controlled. Precipitation of α phase is so important that a great deal of research has been conducted on processing and heat treatments that can control precipitation [3][4][5][6][7][8] . In the literature, it has been reported that precipitation of α phase is affected by transition phases (ω phase 9,10) , β ′ phase 11,12) ) and dislocation 13,14) .…”

Section: Introductionmentioning

confidence: 99%

Effects of α Phase Nucleating at Transition Phase and Dislocation on Mechanical Properties in Metastable β Titanium Alloy Ti-6.8Mo-4.5Fe-1.5Al

et al. 2017

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Effects of α phase nucleating at a transition phase and dislocation on mechanical properties in a metastable β titanium alloy, Ti-6.8Mo-4.5Fe-1.5Al(mass%), were investigated. Tensile test and optical, scanning, and transmission electron microscopy were used. Two-step aging promoted the precipitation of a ne α phase in grain interiors because the α phase nucleated at a transition phase of β ′ . A precipitation-free zone appeared at rst, but nally disappeared during aging. A specimen that included the precipitation-free zone showed lower yield strength and larger elongation than it did without the precipitation-free zone. This was because dislocation could easily glide in the precipitation-free zone, which was veri ed from examination of the intergranular ductile fracture surface. The transition phase of β ′ promoted the disappearance of a precipitation-free zone, due to the promotion of α phase precipitation, resulting in enhancement of yield strength and deterioration of elongation. It is likely that the width of PFZ and the crystallographic orientation of β grains determine fracture mode to be intergranular ductile, intergranular brittle or intragranular fractures. Aging after tensile deformation produced α phase precipitation at dislocation. A speci c variant of α phase was selected due to a stress eld around the dislocation that included a planar slip band. This resulted in the formation of a large colony of the speci c α variant, while elongation deteriorated because the large colony probably facilitated crack propagation.

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Section: Introductionmentioning

confidence: 99%

Effects of α Phase Nucleating at Transition Phase and Dislocation on Mechanical Properties in Metastable β Titanium Alloy Ti-6.8Mo-4.5Fe-1.5Al

et al. 2017

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Recent Advances in Near‐β Titanium Alloys: Microstructure Control, Deformation Mechanisms, and Oxidation Behavior

Zhuo,

Zhan,

Xie

et al. 2024

Adv Eng Mater

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Near‐β titanium alloys are used as promising structural materials for aerospace, biomedical, and other advanced applications due to their excellent combination of high specific strength and superior corrosion resistance. Precise control of the microstructure and mechanical properties through thermomechanical processing and heat treatment is paramount for exploiting the full potential of these alloys. This review article provides a comprehensive and critical assessment of the state‐of‐the‐art research on the microstructure evolution, deformation mechanisms, and oxidation behavior of near‐β titanium alloys. Furthermore, the challenges and emerging opportunities in the development of near‐β titanium alloys have also been identified, ranging from alloy design and processing optimization to multiscale characterization and integrated computational materials engineering. This review article provides a timely and comprehensive roadmap for the research and development of near‐β titanium alloys, paving the way for unlocking their full potential in critical industries.

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Cold compression behavior on the evolution of microstructure and texture in Beta C titanium alloy

Nichul

Khatirkar

Dhole

et al. 2021

Journal of Alloys and Compounds

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The influence of thermo-mechanical processing on the hardness and microstructure of Beta-C titanium

Cited by 5 publications

References 2 publications

Effects of α Phase Nucleating at Transition Phase and Dislocation on Mechanical Properties in Metastable β Titanium Alloy Ti-6.8Mo-4.5Fe-1.5Al

Effects of α Phase Nucleating at Transition Phase and Dislocation on Mechanical Properties in Metastable β Titanium Alloy Ti-6.8Mo-4.5Fe-1.5Al

Recent Advances in Near‐β Titanium Alloys: Microstructure Control, Deformation Mechanisms, and Oxidation Behavior

Cold compression behavior on the evolution of microstructure and texture in Beta C titanium alloy

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