Volume 8, Issue 2 (Journal OF Welding Science and Technology 2023)                   2023, 8(2): 13-21 | Back to browse issues page

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Pourjafar A, dehmolaei R, Alavi zaree R, Ranjbar K, Tavakoli Shoushtari M. Effect of diffusion bonding temperature on microstructure properties of Zr/Ti interlayer in the diffusion bonded joints of Zr702 to A516 steel. Journal of Welding Science and Technology of Iran 2023; 8 (2) :13-21
URL: http://jwsti.iut.ac.ir/article-1-403-en.html
Abstract:   (496 Views)
In this study, the effect of temperature on the microstructure and reactive layer at the interface between the Ti interlayer and the base metal related to the diffusion bonding of Zr702 to A516 low alloy steel was investigated. The joining was done using the spark plasma sintering technique at temperatures of 900, 950 and 1000°C for 30 minutes. Field Emission Scanning Electron Microscope (FESEM) equipped with EDS analysis was used to investigate the microstructure of the interfaces in various joints. Investigations showed that at all temperatures, with the diffusion of atoms and the formation of a reactive layer between the Ti interlayer and Zr702, no intermetallic phases, cracks, porosity and discontinuities were formed at their interfaces. . It was found that increasing the bonding temperature did not cause the formation of new phases and compounds in the interface and only increased the thickness of the reaction layer. The measurement of the thickness of the reactive layer showed that the maximum and minimum amounts of diffusion were 84 microns at 1000 °C and 64 microns at 900 °C respectively
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Type of Study: Research | Subject: Special

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