Effect of process parameters on semi-solid TLP bonding of Ti–6Al–4V to Mg–AZ31

Atieh, Anas M.; Khan, Tahir I.

doi:10.1007/s10853-013-7475-6

Cited by 43 publications

(11 citation statements)

References 22 publications

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“…Over all, the use of two double Ni-Cu foils resulted in an increase in joint shear strength, which might be related to the smaller joint width (64 mm) compared to joint width produced (197 mm) when using the single Ni foil. [21][22][23] It was also observed that the joint configuration in which Ni foil was in contact with Mg-AZ31 gave higher joint strengths than when Cu was placed in contact with Mg-AZ31. Fractography and XRD analysis…”

Section: Shear Strength Evaluationmentioning

confidence: 99%

Transient liquid phase (TLP) brazing of Mg–AZ31 and Ti–6Al–4V using Ni and Cu sandwich foils

Atieh

Khan

2014

Science and Technology of Welding and Joining

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Transient liquid phase (TLP) brazing of Mg-AZ31 alloy and Ti-6Al-4V alloy was performed using double Ni and Cu sandwich foils. Two configurations were tested; first, Mg-AZ31/Cu-Ni/Ti-6Al-4V and second, Mg-AZ31/Ni-Cu/Ti-6Al-4V. The effect of set-up configuration of the foils on microstructural developments, mechanical properties and mechanism of joint formation was examined. The results showed that different reaction layers formed inside the joint region depending on the configuration chosen. The formation of e phase (Mg), r (CuMg 2 ), d (Mg 2 Ni) and Mg 3 AlNi 2 was observed in both configurations. Maximum shear strength obtained was 57 MPa for Mg-AZ31/Ni-Cu/Ti-6Al-4V configuration and in both configurations, the increase in bonding time resulted in a decrease in joint strength to 13 MPa. The mechanism of joint formation includes three stages; solid state diffusion, dissolution and widening of the joint, and isothermal solidification.

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Section: Shear Strength Evaluationmentioning

confidence: 99%

Transient liquid phase (TLP) brazing of Mg–AZ31 and Ti–6Al–4V using Ni and Cu sandwich foils

Atieh

Khan

2014

Science and Technology of Welding and Joining

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“…These techniques include laser welding (LW) [18], resistance spot welding (RSW) [19], friction stir welding (FSW) [20], and friction stir spot welding (FSSW) [21]. Among the available techniques, diffusion bonding [22] has the potential of joining Ti alloys to materials such as aluminium [23], stainless steel [24,25], and magnesium [16,26]. The primary disadvantage of these methods of welding is that the high temperature used in the welding process often leads to the formation of various undesirable intermetallic compounds at the interface [18,[27][28][29].…”

Section: Dissimilar Joining Of Titanium Alloysmentioning

confidence: 99%

“…Over the last two decades, several researchers have focused extensively on the development of suitable technologies that are capable of joining dissimilar advanced alloys to form hybrid structures. Researchers are still tackling limitations such as the formation of intermetallic compounds at the interface, galvanic corrosion, slow welding process, and high production cost of the technology [13][14][15][16][17]. This article provides a comprehensive review of the advances made in the diffusion bonding of Ti and its alloys to other advanced structural materials such as aluminium, stainless steel, and magnesium.…”

Section: Introductionmentioning

confidence: 99%

Current Trends in Dissimilar Diffusion Bonding of Titanium Alloys to Stainless Steels, Aluminium and Magnesium

Cooke

Atieh

2020

JMMP

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This article provides a comprehensive review of the advancements made in the diffusion bonding of titanium and its alloys to other advanced materials such as aluminium, stainless steel, and magnesium. This combination of advanced alloys has received considerable attention in different industries, including aerospace, petrochemical, and nuclear applications due to high specific strength, lightweight, corrosion resistance, and moderate to high mechanical properties. The mechanisms of bond formation are discussed based on the type of microstructures formed and the mechanical properties achieved. The scientific literature identifies various methods/processes for controlling the volume of intermetallic compounds formed within the joint regions, as well as ways of maximising the strength of the weld/joints. This paper discusses the relationship between weld/bond properties and bonding parameters such as time, temperature, surface roughness, pressures, interlayer composition, and thickness. The scientific literature also shows that the bonding mechanisms and microstructural evolution of the bond zone can be significantly affected by suitable optimization of the bonding parameters. Additionally, this is a method of maximising bond strength.

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“…As a result, Ti/Mg bimetal has a great application potential in automotive and aerospace fields. Many researchers have fabricated Ti/Mg bimetal by welding technology, such as friction stir welding, [7] transient liquid phase bonding, [8,9] cold metal transfer bonding, [10] tungsten insert gas welding, [11] and laser welding. [12][13][14] However, welding technology is not suitable for products with complex geometries.…”

Section: Introductionmentioning

confidence: 99%

Improving Shear Strength of Ti/Mg Bimetal Composites Prepared by Hot‐Dip Aluminizing and Solid–Liquid Compound Casting

et al. 2022

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It is a great challenge to achieve the joining between Ti and Mg for their low solid solubility and positive formation enthalpy value. To fabricate high strength TC4/AZ91D bimetallic composite with metallurgical bonding interface, Al coating is prepared on the surface of TC4 alloy by hot‐dip technology, and Al‐coated TC4/AZ91D bimetal is prepared by solid–liquid compound casting herein. The effect of the hot‐dip process on the thickness and composition of the Al coating on the TC4 sample is discussed. Process parameters including casting temperature and liquid‐to‐solid volume ratio are investigated. The results reveal that the shear strength of Al‐coated TC4/AZ91D bimetal reaches 48.5 MPa when hot dipping at 700 °C for 15 min and casting at 720 °C with the volume ratio of 24, while that of the sample without Al interlayer is only 19.1 MPa. The reason is due to the formation of Ti(Al, Mg)3 intermetallic compound and Al12Mg17 + δ‐Mg eutectic structure at the interface. The results are helpful for the further development of high strength Ti/Mg bimetal by combining hot‐dip technology and solid–liquid composite casting technology.

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Effect of process parameters on semi-solid TLP bonding of Ti–6Al–4V to Mg–AZ31

Cited by 43 publications

References 22 publications

Transient liquid phase (TLP) brazing of Mg–AZ31 and Ti–6Al–4V using Ni and Cu sandwich foils

Transient liquid phase (TLP) brazing of Mg–AZ31 and Ti–6Al–4V using Ni and Cu sandwich foils

Current Trends in Dissimilar Diffusion Bonding of Titanium Alloys to Stainless Steels, Aluminium and Magnesium

Improving Shear Strength of Ti/Mg Bimetal Composites Prepared by Hot‐Dip Aluminizing and Solid–Liquid Compound Casting

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