2020
DOI: 10.1051/mfreview/2020015
|View full text |Cite
|
Sign up to set email alerts
|

Review on globularization of titanium alloy with lamellar colony

Abstract: The globularization of titanium alloy with lamellar colony during hot working is an important way to obtain fine and homogeneous microstructure which has excellent mechanical properties. Because of its great technological importance, globularization has captured wide attention and much research. This paper conducts a systematic study on state of art on globularization of titanium alloy, which mainly includes globularization mechanism, prediction model and the effects of hot-working parameters and microstructur… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
5

Citation Types

0
10
0

Year Published

2021
2021
2024
2024

Publication Types

Select...
7
1

Relationship

0
8

Authors

Journals

citations
Cited by 14 publications
(10 citation statements)
references
References 95 publications
(149 reference statements)
0
10
0
Order By: Relevance
“…On the other hand, the deformation behaviour of α phase depends not only on the initial microstructure but also on the parameters such as deformation temperature, 6 strain rate 7 and true strain. 8,9 Similarly, the occurrence of flow softening due to dynamic recovery (DRV) 10 and recrystallisation (DRX) 11 of β phase and the dynamic phase transformation (DT) due to adiabatic heating [12][13][14] are additional challenges to study the hot rheological behaviour of Ti alloys at elevated temperatures. Hence, proper selection of the deformation parameters accompanied by an accurate examination of the rheological behaviour of alloy can be vital to optimise process and control the microstructural evolutions during hot deformation.…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, the deformation behaviour of α phase depends not only on the initial microstructure but also on the parameters such as deformation temperature, 6 strain rate 7 and true strain. 8,9 Similarly, the occurrence of flow softening due to dynamic recovery (DRV) 10 and recrystallisation (DRX) 11 of β phase and the dynamic phase transformation (DT) due to adiabatic heating [12][13][14] are additional challenges to study the hot rheological behaviour of Ti alloys at elevated temperatures. Hence, proper selection of the deformation parameters accompanied by an accurate examination of the rheological behaviour of alloy can be vital to optimise process and control the microstructural evolutions during hot deformation.…”
Section: Introductionmentioning
confidence: 99%
“…Because a globularized α microstructure exhibits better balance in terms of strength and ductility, formation processing and prediction models to induce globularization of the α phase have been extensively investigated [7][8][9][10][11]. A review paper on globularization indicates that the strain introduced during forging and the strain rate of deformation affect the kinetics of globularization of the lamellar structure [12]; specifically, higher strain and a lower strain rate promote globularization. The deformation temperature also affects the globularization mechanism in that a high deformation temperature promotes the formation of a granular α phase by dynamic recrystallization and a low deformation temperature promotes the formation of a granular α phase by boundary splitting [12].…”
Section: Introductionmentioning
confidence: 99%
“…The strain introduced by forging is nonuniform and therefore varies by position in forged materials [4,12]. Controlling the strain in forged materials requires an understanding of the processing.…”
Section: Introductionmentioning
confidence: 99%
“…These findings are important to understand the superplastic behavior of α+β alloys in these conditions and for the continuous development of models to predict their flow behavior, aiming at the constant improvement of processing maps (HU et al, 2018;SESHACHARYULU et al, 2002). The dynamic globularization mechanism of the α phase with lamellar morphology is usually attributed to dynamic recrystallization (splitting of lamellae into necklace strings with similar orientation), but different globularization mechanisms have been proposed, such as boundary splitting (formation of sub-boundaries within lamellae with subsequent wedging of the β phase into the α/β interface, evolving to a globular morphology) and shearing mechanism (shearing of lamellae leading to dislocation migration and interface formation along shear lines, promoting globularization) ZHAN, 2020). The understanding of substructure evolution in colony α is critical for the development of advanced models for texture evolution and dynamic globularization, for example .…”
Section: Introductionmentioning
confidence: 99%
“…The understanding of substructure evolution in colony α is critical for the development of advanced models for texture evolution and dynamic globularization, for example . However, descriptions of these mechanisms are mostly qualitative, lacking quantitative description of microstructural features such as crystal and substructure orientation ZHAN, 2020). Moreover, a subject of growing interest during α+β processing is a dynamic reduction in the α phase volume fraction with respect to static conditions, whose mechanisms are not yet fully known .…”
Section: Introductionmentioning
confidence: 99%