Microstructure and mechanical properties of Ti6Al4V/Cu-10Sn bronze diffusion-bonded joint

Zhao, He; Cao, Jian; Feng, Jicai

doi:10.1016/s1003-6326(10)60080-5

Cited by 11 publications

(4 citation statements)

References 10 publications

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“…The observed trend of variation in hardness in the present study is in line with the nanoindentation studies available in the literature pertaining to diffusion bonding of Ti alloys to steels. [34,[36][37][38][39] Furthermore, the hardness results are also comparable to the reported microhardness values at the interfaces of Ti/SS diffusion-bonded joints. [12,14] D. Shear Behavior of the Ti64/IF Steel Joints The shear test curves indicate that some of the joints behaved in a brittle manner with limited shear ductility and reduced shear strengths, whereas the other joints exhibited noticeable shear ductility and improved shear strengths.…”

Section: Interface Microstructure Of the Joint Produced With Cu+ni Insupporting

confidence: 83%

“…Furthermore, the hardness distribution across the bonding zone can be correlated to the observed microstructures and subsequently to the properties of the interfacial layers and regions resulting from both the elemental concentration gradient due to diffusion of various metal atoms and chemical reactions. [34,35] The hardness of interfaces, in general, increased with increasing bond temperature. The observed high hardness values of 8 to 13 GPa at interfaces are close to those reported for Ti/SS diffusion-bonded joints.…”

Section: Interface Microstructure Of the Joint Produced With Cu+ni Inmentioning

confidence: 99%

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Microstructure and Mechanical Properties of Ti-6Al-4V Alloy/Interstitial Free Steel Joint Diffusion Bonded with Application of Copper and Nickel Interlayers

Raj

Prasad

Narasimhan

2020

Metall Mater Trans A

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The application of interlayers in solid-state diffusion bonding is considered for facilitating improved joint strength as well as optimizing the bonding parameters. In case of dissimilar metals, the interlayers are preferred to promote diffusivity by reducing the metallurgical incompatibility. In the present work, the effect of formation of intermetallics at interfaces of the dissimilar joints between Ti-6Al-4V (Ti64) alloy and interstitial free (IF) steel, produced by direct diffusion bonding as well as by using the interlayers of copper and nickel, was evaluated. The diffusion bonding experiments were performed in a temperature range of 1023 K to 1223 K, under a constant pressure of 10 MPa for 10 minutes, in high vacuum conditions. It was observed that diffusion of interlayer(s) into the base metals increased with bonding temperature, which led to the increase in intermetallic layers at the joint interface. At 1223 K, the influence of interlayer on microstructure of interfaces was reduced by complete diffusion of interlayers and subsequently led to the interdiffusion of base metals. The maximum shear strength of~186 MPa was recorded for the bonding performed using a nickel interlayer at 1023 K. Detailed microstructure analysis, nanoindentation measurements and shear tests suggest that the presence of a thin layer of hard TiFe intermetallic at the interface has no adverse effect, but a soft remnant interlayer can deteriorate the shear properties of the diffusion-bonded joints.

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Section: Interface Microstructure Of the Joint Produced With Cu+ni Insupporting

confidence: 83%

Section: Interface Microstructure Of the Joint Produced With Cu+ni Inmentioning

confidence: 99%

Microstructure and Mechanical Properties of Ti-6Al-4V Alloy/Interstitial Free Steel Joint Diffusion Bonded with Application of Copper and Nickel Interlayers

Raj

Prasad

Narasimhan

2020

Metall Mater Trans A

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“…Copper alloys consist of wrought alloys (C100 -C 799) and cast alloys (C 800-C 999) [1]. Engineering materials, especially bronze alloys, are widely used due to their high elasticity, high thermal conductivity, wear-resistance, and good corrosion resistance [2][3][4]. Bronze is most commonly used for bearings, clips, electrical connectors, springs, turbines, and blades applications.…”

Section: Introductionmentioning

confidence: 99%

Archives of Foundry Engineering

Slamet,

Suyitno,

Kusumaningtyas

2021

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Casting is one method of making metal components that are widely used in industry and up to date. The sand casting method is used due to its simplicity, ease of operation, and low cost. In addition, the casting method can produce cast products in various sizes and is well-suited for mass production. However, the disadvantage of casting, especially gravity casting, is that it has poor physical and mechanical properties. Tin bronze Cu20%wt.Sn is melted in a furnace, then poured at a temperature of 1100°C into a sand mold. The cast product is a rod with 400 mm in length, 10 mm in thickness, and 10 mm in width. The heat treatment mechanism is carried out by reheating the cast specimen at a temperature of 650°C, holding it for 4 hours, and then rapid cooling. The specimens were observed microstructure, density, and mechanical properties include tensile strength and bending strength. The results showed that there was a phase change from α + δ to α + β phase, an increase in density as a result of a decrease in porosity and a coarse grain to a fine grain. In addition, the tensile strength and bending strength of the Cu20wt.%Sn alloy were increased and resulted in a more ductile alloy through post-cast heat treatment.

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“…Regardless of the processing time, the chemical composition of layers I, II and III did not change. As diffusion of Ti into Cu is effective to decrease the activity of Sn[22], Sn began to accumulate adjacent to Cu(Ti) layer with the increasing processing time. Finally, Sn and Cu(Ti) layer combined into one single layer, which is enriched in Sn and in intermetallic Ti-Cu-Sn phase.…”

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confidence: 99%

Microstructure evolution and bonding mechanism of Ti2SnC-Ti6Al4V joint by using Cu pure foil interlayer

Zhao

Huang

et al. 2017

Materials Characterization

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Ti 2 SnC, as one of functional ceramics with self-healing ability, was studied in welding with Ti6Al4V (TC4) through Cu interlayer under an applied mechanical pressure 10MPa in Ar atmosphere. Electron probe microanalyses indicated that the outward diffusion of Sn from Ti 2 SnC played a critical role in the chemical composition of the joining interface. After 60 min, the reaction layers consisted of five zones: an interleaved zone (V) of β-Cu(Sn) and α-Cu(Sn), an enriched zone (IV) of Sn and intermetallic CuTi 0.5 Sn 0.5 phase, the intermetallic zones (III) and (II) composed of TiCu 4 and Ti 3 Cu 4 , a zone (I) consisting of β-Ti (Cu) phase. After shear tests, the corresponding fractographs indicated that the cracks mainly propagated in the Ti 2 SnC matrix with an intergranular fracture mode.

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Microstructure and mechanical properties of Ti6Al4V/Cu-10Sn bronze diffusion-bonded joint

Cited by 11 publications

References 10 publications

Microstructure and Mechanical Properties of Ti-6Al-4V Alloy/Interstitial Free Steel Joint Diffusion Bonded with Application of Copper and Nickel Interlayers

Microstructure and Mechanical Properties of Ti-6Al-4V Alloy/Interstitial Free Steel Joint Diffusion Bonded with Application of Copper and Nickel Interlayers

Archives of Foundry Engineering

Microstructure evolution and bonding mechanism of Ti2SnC-Ti6Al4V joint by using Cu pure foil interlayer

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