Phase precipitation behavior during isothermal deformation in β-quenched near beta titanium alloy Ti-7333

Hua, Ke; Li, Jinshan; Kou, Hongchao; Fan, Jiangkun; Sun, Miao; Tang, Bin

doi:10.1016/j.jallcom.2016.02.102

Cited by 33 publications

(13 citation statements)

References 20 publications

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“…These include the near-beta Ti-7Mo-3Nb-3Cr-3Al (wt. %) alloy, which has a MoE value of 9.6 [65,66]; the metastable Ti-4.5Al-6.5Mo-2Cr-2.6Nb-2Zr-1Sn (wt. %) alloy known as TB17, which has a MoE value of 5.3 [67]; the near-beta Ti-4Al-7Mo-3Cr-3V (wt.…”

Section: Aircraft Structuresmentioning

confidence: 99%

“…The bcc β-phase grains are much smaller and hence the grain boundary α-phase segments are shorter. Studies have been performed to evaluate the plastic flow behavior as a function of processing parameters at both super-transus and sub-transus temperatures for near-beta and metastable beta Ti Studies have been performed to evaluate the plastic flow behavior as a function of processing parameters at both super-transus and sub-transus temperatures for near-beta and metastable beta Ti alloys [65][66][67][105][106][107][108][109][110][111][112]. The microstructural evolution, recrystallization texture, and mechanical properties of these alloys are very sensitive to the secondary processing parameters.…”

Section: Thermo-mechanical Processingmentioning

confidence: 99%

“…This includes the near-beta Ti7Mo-3Nb-3Cr-3Al (wt. %), which has an ultrahigh tensile strength of >1350 MPa and moderate ductility of > ~8% [65,66]; and the metastable Ti-4.5Al-6.5Mo-2Cr-2.6Nb-2Zr-1Sn (wt. %), which has a higher tensile strength of >1400 MPa and moderate ductility of > ~7% [67].…”

Section: Thermo-mechanical Processingmentioning

confidence: 99%

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A Review of Metastable Beta Titanium Alloys

Kolli

Devaraj

2018

Metals

494

175

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Abstract:In this article, we provide a broad and extensive review of beta titanium alloys. Beta titanium alloys are an important class of alloys that have found use in demanding applications such as aircraft structures and engines, and orthopedic and orthodontic implants. Their high strength, good corrosion resistance, excellent biocompatibility, and ease of fabrication provide significant advantages compared to other high performance alloys. The body-centered cubic (bcc) β-phase is metastable at temperatures below the beta transus temperature, providing these alloys with a wide range of microstructures and mechanical properties through processing and heat treatment. One attribute important for biomedical applications is the ability to adjust the modulus of elasticity through alloying and altering phase volume fractions. Furthermore, since these alloys are metastable, they experience stress-induced transformations in response to deformation. The attributes of these alloys make them the subject of many recent studies. In addition, researchers are pursuing development of new metastable and near-beta Ti alloys for advanced applications. In this article, we review several important topics of these alloys including phase stability, development history, thermo-mechanical processing and heat treatment, and stress-induced transformations. In addition, we address recent developments in new alloys, phase stability, superelasticity, and additive manufacturing.

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Section: Aircraft Structuresmentioning

confidence: 99%

Section: Thermo-mechanical Processingmentioning

confidence: 99%

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A Review of Metastable Beta Titanium Alloys

Kolli

Devaraj

2018

Metals

494

175

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“…%) (Ti-7333 [26]) alloy prepared first by multiple vacuum arc-melting and then by forging in the β and the α+β phase region. The composition was analyzed by capacity chemical analysis method and is given in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Composite structure of α phase in metastable β Ti alloys induced by lattice strain during β to α phase transformation

et al. 2017

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“…e requirement of the high-performance airplane accelerates the application of titanium alloys due to their high specific strength together with the extraordinary corrosion resistance [1,2]. It is well known that the precipitate of the α phase from β grains directly affects the properties of the titanium alloys, which results in a considerable amount of interest in the precipitation mechanism of the α phase [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Experimental Evidence of Precipitation of All 12 Variants in a Single β Grain in Titanium Alloys

Chen

Kou

Cheng

et al. 2018

Advances in Materials Science and Engineering

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e effect of the changing of the local composition of the β matrix on the precipitation of the α phase has been investigated by electron backscatter diffraction (EBSD) to obtain more insight in the nucleation and variant selection of these α plates based on the Ti-5.04Al/Ti-1.52Mo (at.%) diffusion couple. e results showed that the composition gradient was formed from one side of the diffusion couple to another side after diffusion annealing. Followed by a secondary heat treatment process, it was found for the first time that all 12 variants formed in a single β grain in the diffusion zone in the Ti-5.04Al/Ti-1.52Mo diffusion couple, which indicated that the changing of the local composition of the β matrix significantly weakened the α variants selection behavior.

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Phase precipitation behavior during isothermal deformation in β-quenched near beta titanium alloy Ti-7333

Cited by 33 publications

References 20 publications

A Review of Metastable Beta Titanium Alloys

A Review of Metastable Beta Titanium Alloys

Composite structure of α phase in metastable β Ti alloys induced by lattice strain during β to α phase transformation

Experimental Evidence of Precipitation of All 12 Variants in a Single β Grain in Titanium Alloys

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