ارزیابی ریزساختار و خواص مکانیکی اتصال غیرهمجنس AA۵۰۸۳/AA۶۰۶۱ جوشکاری شده با استفاده از فرایند GTAW

سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: فارسی
مشاهده: 128

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شناسه ملی سند علمی:

JR_JWSTI-8-2_012

تاریخ نمایه سازی: 18 اردیبهشت 1402

چکیده مقاله:

Despite the increased use of aluminium alloys in several industries, their common concern is the difficulty of joining dissimilar alloys using welding techniques. Based on this, the primary purpose of this research is to assess the mechanical characteristics of dissimilar joining of heat-treatable ۶۰۶۱ and non-heat-treatable ۵۰۸۳ aluminium alloys by gas tungsten arc welding and to discover the link between microstructure and mechanical properties. Similar welds were also implemented and evaluated in order to more properly analyze and compare the outcomes. The quality of the weld generated after establishing the health of the joint using non-destructive testing was evaluated by destructive bending, tensile, metallographic, and hardness tests to check the mechanical and microstructural qualities. The intended dissimilar weld was produced under the parameters of pulse current ۱۲۰-۸۰ amps, voltage ۲۰ volts, welding speed ۱۵ cm/min, and filler ۵۳۵۶. It should be highlighted that the dissimilar weld had the maximum joint efficiency, and with perfect control of welding settings and the absence of flaws, only ۳۶% loss of strength was recorded when compared to the base metal. Metallographic images revealed that the formation of hot cracks in the dendritic structure of the weld metal is the major cause of strength loss for ۵۰۸۳ similar weld and the production of numerous porosities in the weld metal for ۶۰۶۱ similar welds.

نویسندگان

نوراله طاهری مقدم

Department of Materials Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran.

امین ربیعی زاده

Department of Materials Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran.

علی خسروی فرد

Department of Materials Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran.

لاله قلندری

Department of Materials Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran.

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  • B. Srinivas, K. Sivaprasad, N. K. Babu, V. Muthupandi, and ...
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  • P. Rani and R. S. Mishra, "Influence of Reinforcement with ...
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  • M. Samiuddin, J.-l. Li, M. Taimoor, M. N. Siddiqui, S. ...
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