Effect of bonding temperature on the microstructure and mechanical properties of the diffusion-bonded joints of Zr705 alloy

Zeng, Sheng; You, Guoxiang; Yao, Fanjin; Luo, Jiayuan; Tong, Xin

doi:10.1016/j.msea.2021.140782

Cited by 23 publications

(4 citation statements)

References 51 publications

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“…The result was that the acicular α-Zr generated and some β-Zr phases remained due to the rapid cooling. A similar phenomenon was reported by S. Zeng et al [31,32] It could be seen that there were some microvoids at the junction of regions I and II. This was because this region was the original interface between Zr-4 and Nb foil.…”

Section: Typical Microstructure Of the Zr-4/nb/ni/316ss Jointssupporting

confidence: 88%

Microstructure and Mechanical Properties of Zr‐4 Alloy and 316 Stainless Steel Diffusion Bonding Joint Using Nb/Ni Composite Interlayer

et al. 2023

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Diffusion bonding of Zr‐4 alloy and 316 stainless steel (SS) without and with the Nb/Ni composite interlayer has been performed. The maximum shear strength of the joint without interlayer is 131 MPa at 900 °C for 30 min under 10 MPa. The results show that the fracture occurs at the diffusion layer as a result of the limited mutual solubility between Zr and Fe and detrimental residual stress. Sound diffusion bonding joints without defects are obtained at lower bonding temperatures due to the addition of Nb/Ni interlayer, and the maximum shear strength is 380 MPa at 820 °C. The typical microstructure of the Zr‐4/Nb/Ni/316SS joint is Zr‐4/Zr(Nb)/Zr(Fe, Nb)2 /Zr(Nb)/Nb/Ni3Nb/Ni/(Fe, Cr, Ni)/316SS. The highest hardness value of the joint is 422 HV at the Ni3Nb phase, and cracks appear at the interface between Ni3Nb and the remaining Ni foil. The shear strength first increases and then drops as the Ni3Nb layer thickened. The peak residual stress of the joint reduces from 698 to 466 MPa due to the addition of the Nb/Ni composite interlayer. Finally, the growth kinetic model of the Ni3Nb layer is calculated, which provides a pathway for the regulation of joint properties.

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Section: Typical Microstructure Of the Zr-4/nb/ni/316ss Jointssupporting

confidence: 88%

Microstructure and Mechanical Properties of Zr‐4 Alloy and 316 Stainless Steel Diffusion Bonding Joint Using Nb/Ni Composite Interlayer

et al. 2023

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“…However, if both parameters in the experiment were too high, it would have the potential to the grain to expand and the microstructure to grow ( Fig 3( a-f)). This also resulted in the samples to become plastic deformation -deflected, distorted and enlarged [12].…”

Section: Microstructure In Bonded Linementioning

confidence: 99%

The Influence of Diffuse Element in Solid-State on Dissimilar Joint between Semi-Solid Cast 7075 with 6061 Al Alloy by Diffusion Welding

Meengam

Dunyakul

Chainarong

et al. 2022

SSP

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The purpose of this research was to study the diffuse element and mechanical property of Semi-solid casting (SSC) 7075 and 6061 Al alloy from diffusion welding (DW). The results found that Zn elements were successfully diffused. Mg2Si and MgZn2 intermetallics were precipitated from plate-like shape to flake shape. The high bonding temperature and bonding time caused diffuse elements distributed throughout the material. The mechanical property showed that the maximium average tensile strength was 76.80 MPa from bonding temperature at 723 K and 120 min bonding time. The hardness in bonded line was around 63 HV to74 HV.

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“…Superplasticity refers to the ability of certain alloys to undergo extensive tensile strain at a specific temperature and strain rate [5][6][7]. Diffusion bonding involves complex boundary migration and plastic deformation [8][9][10][11]. While most works currently focused on the superplasticity of steels and ferrous alloys [12][13][14][15], very limited research has investigated the diffusion bonding process [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Grain Size on the Diffusion Bonding Properties of SP700 Alloy

Zhang

Jiang

et al. 2022

Metals

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Superplastic forming and diffusion bonding (SPF/DB) has been recognized as a viable manufacturing technology. However, the basic understanding of grain size and its effects on the quality of diffusion bonds is still limited. In this study, a certain type of SP700 alloy with different grain sizes is bonded at superplastic temperature. The experimental results indicate that the same materials, if coarse-grained, may not readily bond under identical conditions of pressure, temperature, and time. This type of bonding is possible because of the presence of many grain boundaries in fine-grained materials that act as short-circuit paths for diffusion. In addition, grain-boundary migration is also faster in fine-grained than in coarse-grained materials. Fractographic studies show that the dimples on the coarse-grained specimen have large dimensions compared with that in the fine-grained material, indicating that heterogeneous deformation develops in the coarse-grained specimen during tension.

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Effect of bonding temperature on the microstructure and mechanical properties of the diffusion-bonded joints of Zr705 alloy

Cited by 23 publications

References 51 publications

Microstructure and Mechanical Properties of Zr‐4 Alloy and 316 Stainless Steel Diffusion Bonding Joint Using Nb/Ni Composite Interlayer

Microstructure and Mechanical Properties of Zr‐4 Alloy and 316 Stainless Steel Diffusion Bonding Joint Using Nb/Ni Composite Interlayer

The Influence of Diffuse Element in Solid-State on Dissimilar Joint between Semi-Solid Cast 7075 with 6061 Al Alloy by Diffusion Welding

The Effect of Grain Size on the Diffusion Bonding Properties of SP700 Alloy

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