Diffusion bonding of TiC or TiB reinforced Ti–6Al–4V matrix composites to conventional Ti–6Al–4V alloy

Prikhodko, Sergey V.; Savvakin, Dmytro G.; Markovsky, P.E.; Stasuk, Olexander O.; Penney, James; Shirzadi, A. A.; Davies, Peter; Davies, Helen

doi:10.1080/13621718.2020.1751403

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…That is why a few different ways of bonding individually fabricated by BEPM layers into laminate are suggested, namely diffusion bonding, friction welding and hot isostatic pressing (HIP). The feasibility of the first two has already been discussed in previous publications [8,9] whereas the HIP followed the BEPM processing will be given more attention in present communication. The HIP process combines high temperature and high pressure inside the HIP reaction chamber, which allows solid-phase consolidation of powders to a completely dense structure of fine grains, as well as diffusion bonding of solid and porous parts [10].…”

Section: Introductionmentioning

confidence: 83%

Ballistic Resistance of Layered Titanium Armour Made Using Powder Metallurgy and Additive 3D Printing

Markovsky¹,

Savvakin²,

Stasiuk³

et al. 2021

Metallofiz. Noveishie Tekhnol.

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Microstructure and antiballistic protection characteristics for two types of titanium-based layered materials are studied. Binary layered armour material consisted of Ti-6Al-4V alloy and Ti-6Al-4V-10% vol. TiC metal matrix composite layers are produced using powder metallurgy and subsequent HIP treatment. Ternary Ti-6Al-4V/CP-Ti/Ti-6Al-4V armour plate is made using additive manufacturing technology. Both types of materials demonstrated a significant superiority in ballistic resistance to armor-piercing incendiary cartridges compared to uniform titanium alloys. Material microstructure and hardness, projectile penetration depth and kinetic energy are analysed to understand contribution of each layer in projectile retardation and energy dissipation. Hard front composite layer effectively retards the projectiles than softer and ductile Ti-6Al-4V and CP-Ti layers, while combination of these materials ensures lower penetration depth and absence of armour cracking on high-energy ballistic impact.

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Section: Introductionmentioning

confidence: 83%

Ballistic Resistance of Layered Titanium Armour Made Using Powder Metallurgy and Additive 3D Printing

Markovsky¹,

Savvakin²,

Stasiuk³

et al. 2021

Metallofiz. Noveishie Tekhnol.

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show abstract

“…Defects such as low welding efficiency, a wide range of heat-affected zones, and coarse weld microstructure exist [5][6][7]. In addition, the diffusion welding method and the friction welding method can also realize the connection of a thick-plate titanium alloy [8][9][10], but the size of the material is greatly limited.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Laser Narrow-Gap Multi-Pass Weld 20 mm-Thick Ti-6Al-4V Alloy with Different Filling Layers

Meng

et al. 2022

Crystals

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In the narrow-gap multi-layer welding of thick Ti-6Al-4V titanium alloy sheets, reducing the number of filling layers can effectively improve the welding efficiency and reduce the possibility of interlayer defects. In order to explore the changes in the microstructure and properties of the weld after reducing the number of filling layers, Ti-6Al-4V titanium alloy sheets with a thickness of 20 mm were successfully welded using the oscillating laser beam mode by laser narrow-gap multi-pass wire filler welding in eight, six, four, and three layers, and all of the formations were good. To reduce the number of filling layers and increase the welding line energy from 0.4 kJ/mm to 1.2 kJ/mm, the melting depth and width of the single layer were changed from 4.3 mm to 10.6 mm, and 5.7 mm to 10.3 mm. The average grain size of the needle-shaped martensite increased from 1.83 μm to 2.38 μm, while the tensile strength of the filled weld area decreased from 1301.8 MPa to 1169.8 MPa, which was higher than that of the base metal of 902.1 MPa. Since there are more columnar crystals in the center of the weld at low heat input, the impact energy was 20.53 J (60.6% of the base metal) at room temperature and 15.76 J (65.9% of the base metal) at −50 ∘C. Considering the weld formation, microstructure and mechanical property, welding four layers of fillers obtained with moderate line energy (0.8 kJ/mm) was more suitable.

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Friction welding of conventional Ti-6Al-4V alloy with a Ti-6Al-4V based metal matrix composite reinforced by TiC

et al. 2020

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Diffusion bonding of TiC or TiB reinforced Ti–6Al–4V matrix composites to conventional Ti–6Al–4V alloy

Abstract: The Open University's repository of research publications and other research outputs Diffusion bonding of TiC or TiB reinforced Ti-6Al-4V matrix composites to conventional Ti-6Al-4V alloy

Cited by 5 publications

References 17 publications

Ballistic Resistance of Layered Titanium Armour Made Using Powder Metallurgy and Additive 3D Printing

Ballistic Resistance of Layered Titanium Armour Made Using Powder Metallurgy and Additive 3D Printing

Microstructure and Mechanical Properties of Laser Narrow-Gap Multi-Pass Weld 20 mm-Thick Ti-6Al-4V Alloy with Different Filling Layers

Friction welding of conventional Ti-6Al-4V alloy with a Ti-6Al-4V based metal matrix composite reinforced by TiC

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