The role of nano-scaled structural non-uniformities on deformation twinning and stress-induced transformation in a cold rolled multifunctional β-titanium alloy

Liang, Qianglong; Kloenne, Zachary; Zheng, Yufeng; Wang, Dong; Antonov, Stoichko; Gao, Yipeng; Hao, Yulin; Yang, Rui; Wang, Yunzhi; Fraser, Hamish L.

doi:10.1016/j.scriptamat.2019.10.029

Cited by 55 publications

(23 citation statements)

References 38 publications

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“…[12] that the solute content of Mo governs the degree of plane collapse in athermal ω phase. The orientation relationship between ω phase and β phase observed is: (0001)ω // (111)β and [11][12][13][14][15][16][17][18][19][20] The following conclusions regarding O' phase can be summarized:…”

Section: Resultsmentioning

confidence: 92%

“…In our earlier work, various nano-scale structural and compositional instabilities have been explored. Three different types of ω phase have been explored including athermal ω phase in the as-quenched state Ti-xMo (x=12, 15 and 18) [12], Ti-18Mo-5Al, Ti-20V [13], Ti-5Fe, Ti-5553 [14] and Ti-2448 [15], isothermal ω phase in the intermediate temperature aged Ti-xMo (x=12, 15 and 18), Ti-18Mo-5Al [16], Ti-20V [17] and Ti-5553 [18] and stress-induced ω phase in deformed Ti-2448 [19]. Disordered orthorhombic structure O' phase was observed in Ti-26Zr-2Al (at.%) [20], Ti-18Mo [12], Ti-18Mo-5Al [21], Ti-5553 [22] and Ti-2448 [15].…”

Section: Introductionmentioning

confidence: 99%

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Exploration of Nano-scale Structural Instabilities in Metastable β Titanium Alloys Using Advanced Electron Microscopy

et al. 2020

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A variety of nano-scale structural instabilities formed in different metastable β titanium alloys have been systematically investigated using advanced characterization techniques. The characteristics of three different types of nano-scale structural instabilities, the transformation mechanisms and pathways involved and the critical experimental conditions to generate such nano-scale phases will be reviewed and summarized, including athermal ω phase with hexagonal structure, O’ phase with orthorhombic structure, and incommensurate modulated nanodomains. The athermal ω phase has been observed in the as-quenched state in Ti-xMo (x=12, 15 and 181), Ti-18Mo-5Al, Ti-20V, Ti-5Fe, Ti-5Al-5Mo-5V-3Cr (Ti-5553) and Ti-24Nb-4Zr-8Sn (Ti-2448). O’ phase has been characterized to co-exist with athermal ω phase in the as-quenched state isomorphous titanium alloys, including Ti-26Zr-2Al (at.%), Ti-18Mo, Ti-18Mo-5Al, Ti-5553 and Ti-2448. Incommensurate modulated nanodomains were found in compositionally graded Ti-xFe alloy when the athermal ω phase is suppressed. These various nano-scale structural instabilities need to be taken into consideration when designing novel metastable β titanium alloys to optimize the mechanical performance by microstructure engineering.

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Exploration of Nano-scale Structural Instabilities in Metastable β Titanium Alloys Using Advanced Electron Microscopy

et al. 2020

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“…[ 74,86,92 ] In addition, experimental characterization has been conducted focusing on the influence of nanoscale metastable phases on the high‐index deformation twins in metastable β‐Ti alloys. [ 93–95 ]…”

Section: Novel Metastable β‐Ti Alloys Designed By the Manipulation Of Deformation Mechanismsmentioning

confidence: 99%

Recent Advances in the Design of Novel β‐Titanium Alloys Using Integrated Theory, Computer Simulation, and Advanced Characterization

Shi

Gao

et al. 2021

Adv Eng Mater

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Metastable β‐titanium (β‐Ti) alloys, because of their combination of high specific strength, superior corrosion resistance, and excellent biocompatibility, have found increasingly widespread application in aerospace, automobile, biomedical, and chemical industries. Many different pathways, available for phase transformation and deformation between a high‐temperature β and a low‐temperature α phase, provide ample opportunities to engineer the desired microstructure through thermal mechanical processing for optimal properties targeting specific applications. Based on an integrated approach (theory, crystallography, multiscale modeling, and advanced characterization), recent studies have obtained fundamental insights in both designing strategies by exploring a variety of nonconventional solid‐state phase transformation and deformation pathways, including 1) pseudospinodal decomposition; 2) precursory ω‐phase‐assisted α precipitation with a wide range of tunable size scales and number densities; and 3) abnormal high‐index deformation twinning modes. Herein, the revolutionary new concepts for alloy development and deployment and the underlying physical mechanisms are reviewed in detail. Perspectives on the future research directions in the development of metastable β‐Ti alloys are also offered. The mechanisms and alloy design concepts as well as the advantage of using state‐of‐the‐art computational and characterization tools in a correlative manner for alloy design are applicable to a wide range of metallic materials beyond Ti alloys.

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“…Previous studies reported that the low elastic modulus of titanium and its alloys could be obtained by cold deformation (Plaine et al, 2019). The deformation textures, dislocations slipping or tangles, and other crystalline defects generated in the cold deformation process have a large influence on the strength-ductility balance of titanium and its alloys (Lan et al, 2017;Rabadia et al, 2019a,b;Liang et al, 2020). Furthermore, the elastic moduli of titanium and its alloys also change with the type and intensity of the texture.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Cold Swaging Deformation on the Microstructures and Mechanical Properties of a Novel Metastable β Type Ti–10Mo–6Zr–4Sn–3Nb Alloy for Biomedical Devices

Cheng

Wang

et al. 2020

Front. Mater.

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The role of nano-scaled structural non-uniformities on deformation twinning and stress-induced transformation in a cold rolled multifunctional β-titanium alloy

Cited by 55 publications

References 38 publications

Exploration of Nano-scale Structural Instabilities in Metastable β Titanium Alloys Using Advanced Electron Microscopy

Exploration of Nano-scale Structural Instabilities in Metastable β Titanium Alloys Using Advanced Electron Microscopy

Recent Advances in the Design of Novel β‐Titanium Alloys Using Integrated Theory, Computer Simulation, and Advanced Characterization

The Effect of Cold Swaging Deformation on the Microstructures and Mechanical Properties of a Novel Metastable β Type Ti–10Mo–6Zr–4Sn–3Nb Alloy for Biomedical Devices

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