scholarly journals Investigation on friction stir welding of hybrid composites fabricated on Al–Zn–Mg–Cu alloy through friction stir processing

2019 ◽  
Vol 8 (5) ◽  
pp. 3733-3740 ◽  
Author(s):  
Namrata Gangil ◽  
Sachin Maheshwari ◽  
Arshad Noor Siddiquee ◽  
Mustufa Haider Abidi ◽  
Mohammed A. El-Meligy ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir Processing ◽  
Hybrid Composites ◽  
Friction Stir ◽  
Cu Alloy

Effects of friction-stir processing with water cooling on the properties of an Al–Zn–Mg–Cu Alloy

2017 ◽  
Vol 34 (2) ◽  
pp. 153-160 ◽  
Author(s):  
Yu Chen ◽  
Yifu Jiang ◽  
Hua Ding ◽  
Jingwei Zhao ◽  
Jizhong Li
Keyword(s):  
Friction Stir Processing ◽  
Water Cooling ◽  
Friction Stir ◽  
Cu Alloy

scholarly journals Friction Stir Processing Of TIG And Friction Stir Welded Dissimilar Alloy Joints: A Review

2019 ◽  
Author(s):  
Sipokazi Mabuwa ◽  
Velaphi Msomi
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Friction Stir Processing ◽  
Aluminium Alloys ◽  
Food Packaging ◽  
Processing Technique ◽  
Tig Welding ◽  
Automotive Electronics ◽  
Friction Stir ◽  
Dissimilar Alloys

The use of aluminium alloys continues to grow in many applications to mention a few aerospace, automotive, electronics, electricity, construction and food packaging. With so much demand there is a new interest in welding of dissimilar aluminium alloys. Some of the welding techniques used to join dissimilar aluminium alloys include friction stir welding and TIG welding. The welding of dissimilar alloys affects the mechanical properties negatively due to porosity and cracking during the welding. This then suggests that there should be a process which can be used to improve the dissimilar alloys mechanical properties post its production. Friction stir processing was found to be one of the mechanical techniques that could be used to improve the mechanical properties of the material. This paper reports on the literature on the friction stir welding, TIG welding and friction stir processing techniques published so far, with the aim to identify the gap in the use of friction stir process as a post processing technique of the weld joints.

scholarly journals Review on Friction Stir Processed TIG and Friction Stir Welded Dissimilar Alloy Joints

Metals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 142 ◽  
Author(s):  
Sipokazi Mabuwa ◽  
Velaphi Msomi
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir Processing ◽  
Aluminium Alloys ◽  
Processing Technique ◽  
Inert Gas ◽  
Tungsten Inert Gas Welding ◽  
Friction Stir ◽  
Dissimilar Alloys ◽  
The Status

There is an increase in reducing the weight of structures through the use of aluminium alloys in different industries like aerospace, automotive, etc. This growing interest will lead towards using dissimilar aluminium alloys which will require welding. Currently, tungsten inert gas welding and friction stir welding are the well-known techniques suitable for joining dissimilar aluminium alloys. The welding of dissimilar alloys has its own dynamics which impact on the quality of the weld. This then suggests that there should be a process which can be used to improve the welds of dissimilar alloys post their production. Friction stir processing is viewed as one of the techniques that could be used to improve the mechanical properties of a material. This paper reports on the status and the advancement of friction stir welding, tungsten inert gas welding and the friction stir processing technique. It further looks at the variation use of friction stir processing on tungsten inert gas and friction stir welded joints with the purpose of identifying the knowledge gap.

Corrosion behavioral studies on AA7075 surface hybrid composites tailored through friction stir processing

2020 ◽  
Vol 67 (4) ◽  
pp. 345-355
Author(s):  
Suganeswaran Kandasamy ◽  
Parameshwaran Rathinasamy ◽  
Nithyavathy Nagarajan ◽  
Karthik Arumugam ◽  
Rajasekar Rathanasamy ◽  
...  
Keyword(s):  
Corrosion Rate ◽  
Friction Stir Processing ◽  
Hybrid Composites ◽  
Film Formation ◽  
Content Type ◽  
Rotating Speed ◽  
Friction Stir ◽  
Behavioral Studies ◽  
Base Matrix ◽  
Sem Micrograph

Purpose This paper aims to overcome the corrosion in AA7075 by incorporating the dual-reinforcements like Al2O3 and SiC through friction stir processing (FSP). In recent days, an automotive monocoque structure undergoes corrosion because of changes in environmental conditions. Design/methodology/approach Surface hybrid composites (SHCs) of AA7075 with different weight ratios of Al2O3 and SiC were fabricated at a rotating speed of 1000 rpm, traveling speed of 56 mm/min and tool tilt angle of 2º with two passes. Surface regions were observed using optical microscopy, and the potentiodynamic corrosion test was performed under a 3.5 per cent NaCl environment at room temperature. Then, the surface morphology analysis of corroded samples and their structural properties were also investigated through scanning electron microscopy (SEM), X-ray diffraction (XRD) and electron dispersive spectroscopy (EDS). Findings Through FSP, an improved interface between the reinforced particles and the AA7075 base matrix was observed because of the severe plastic deformation. Potentiodynamic polarization tests confirmed that the AA7075 matrix with a higher concentration of Al2O3 and a lower concentration of SiC (Al2O3 – 75 per cent and SiC – 25 per cent) possesses a lower corrosion rate than other specimens. This result is because of the combined effect of stable passive film formation and the resistance produced by hard SiC particles. In addition, the formation of a stronger interface between the reinforcements and the base matrix impedes the NaCl solution attack. The SEM micrograph depicts the film crystallinity variations with an increase in Al2O3 content. Debonding between the layers was observed on increasing the SiC content in the base matrix. XRD shows the peaks of reinforcing elements that influence the corrosion behavior. These observations suggest that the AA7075 reinforced with a higher concentration of Al2O3 and a lower concentration of SiC through FSP affords a suitable solution for automotive monocoque applications. Originality/value The corrosion rate has been identified for AA7075 SHCs with various concentrations of Al2O3 and SiC and has been compared with that of the base metal and the friction stir processed specimen without reinforcement.

Vacancy-induced θ′ precipitation during ultrasonic-affected friction stir welding of Al–Cu alloy

2020 ◽  
Vol 55 (29) ◽  
pp. 14626-14641
Author(s):  
Yanying Hu ◽  
Huijie Liu ◽  
Hidetoshi Fujii ◽  
Kohsaku Ushioda ◽  
Hideki Araki ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir ◽  
Cu Alloy
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