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The experimental study of CFRP interlayer of dissimilar joint AA7075-T651/Ti-6Al-4V alloys by friction stir spot welding on mechanical and microstructural properties
| Content Provider | Scilit |
|---|---|
| Author | Nasir, Tauqir Kalaf, Omer Asmael, Mohammed Zeeshan, Qasim Safaei, Babak Hussain, Ghulam Motallebzadeh, Amir |
| Copyright Year | 2021 |
| Abstract | The present study focused on two dissimilar metal alloys: AA7075-T651 and Ti-6Al-4V alloys with additional carbon fiber-reinforced polymer (CFRP) as an interlayer were welded together by friction stir spot welding (FSSW). The effect of welding parameters (rotational speed and dwell time) and carbon fiber-reinforced polymer on mechanical and microstructural properties of a weld joint was investigated. The obtained results explore the parametric effects on mechanical properties of the weld joint. The maximum tensile shear load 2597.8 N was achieved at the rotational speed of 2,000 rpm and dwell time of 10 s. While at the same rotational speed, 54.7% reduction in the tensile shear load was attained at shorter dwell time of 5 s. Therefore, dwell time plays an important role in the tensile shear load of a weld joint. The scanning electron microscope (SEM-EDS) results show the formation of intermetallic compound of Ti3Al and Ti-Al-C that significantly affect the mechanical and microstructural properties of the weld joint. Moreover, the effect of the rotational speed on micro-hardness was found at significant than dwell time. The micro-hardness of the weld joint increase by 18.90% in the keyhole rather than the stir zone and the thermomechanical affected zone, which might be due to the presence of ternary (Ti-Al-C) intermetallic compound. |
| Related Links | https://www.degruyter.com/document/doi/10.1515/ntrev-2021-0032/pdf |
| Ending Page | 413 |
| Page Count | 13 |
| Starting Page | 401 |
| ISSN | 21919089 |
| e-ISSN | 21919097 |
| DOI | 10.1515/ntrev-2021-0032 |
| Journal | Nanotechnology Reviews |
| Issue Number | 1 |
| Volume Number | 10 |
| Language | English |
| Publisher | Walter de Gruyter GmbH |
| Publisher Date | 2021-06-02 |
| Access Restriction | Open |
| Subject Keyword | Nanotechnology Reviews Automotive Engineering Friction Stir Spot Welding Titanium Alloys Aluminum Alloys Interlayer Carbon Fiber-reinforced Polymer Welding Parameters Journal: Nanotechnology Reviews, Vol- 10, Issue- 1 |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Medicine Biomaterials Engineering Energy Engineering and Power Technology Biotechnology Process Chemistry and Technology |
