کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830827 1470361 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of water cooling during dissimilar friction stir welding of Al alloy to Mg alloy
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
The effect of water cooling during dissimilar friction stir welding of Al alloy to Mg alloy
چکیده انگلیسی

Formation of intermetallic compounds in the stir zone of dissimilar welds affects the mechanical properties of the joint significantly. This research demonstrates the use of submerged friction stir welding (SFSW) under water as an alternative and improved method for creating fine grained welds, and hence, to alleviate formation of intermetallic phases. A constant tool rotation rate of 300 rpm and travel speed of 50 mm/min was used. The air welded specimen had a relatively larger volume fraction of intermetallic compound, higher peak temperature in stir zone and significantly higher hardness in the weld center. The present study suggests that submerged friction stir welding under water resulted in lower peak temperature and because of lower heat input intermetallic compounds formation was limited.


► Temperature profile showed a decrease from air welded specimen to underwater weld.
► Intermetallics formed in the stir zone of air welded specimen because of liquation.
► In the stir zone of underwater weld, formation of intermetallics was suppressed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design (1980-2015) - Volume 36, April 2012, Pages 161–167
نویسندگان
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