کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5469230 | 1519226 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Refill friction stir spot welding of dissimilar aluminum alloy and AlSi coated steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Refill friction stir spot welding of dissimilar aluminum alloy and AlSi coated steel Refill friction stir spot welding of dissimilar aluminum alloy and AlSi coated steel](/preview/png/5469230.png)
چکیده انگلیسی
AA5754 Al alloy and coated steel were successfully joined by refill friction stir spot welding through the eutectic Al-Si coating. The overlap shear strength increased with plunge depth and reached a high strength plateau which was attributed to maximum bonding size and strong Al/AlSi coating joint interface. The AlSi coating in the as-received coated steel consisted of AlSi eutectic phase and two main intermetallic phases (Al7Fe2Si and Al5Fe2(Si)) with an average width of 8.5 μm and around thickness of 1 μm, respectively. The former played a key role in dissimilar welding, the latter effectively restrained the formation of additional IMCs and the growth of exiting IMCs during welding. Microstructural evolution showed the high strength of joints is also associated with fine silicon particles, elimination of defects and control of intermetallics at the joint interface. Fracture of full bonding welds initiated from the partial metallurgical bonds (PMBs) or kissing bonds, then propagated through the AlSi coating and AlSi/Al7Fe2Si interface, final fracture occurred at Al7Fe2Si/Al5Fe2(Si)/steel substrate interfaces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Manufacturing Processes - Volume 30, December 2017, Pages 353-360
Journal: Journal of Manufacturing Processes - Volume 30, December 2017, Pages 353-360
نویسندگان
Y. Ding, Z. Shen, A.P. Gerlich,