Synergic enhancement of ductility and toughness in friction stir additively fabricated AA6061-T6 build

Choudhury, Smrity; Acharya, Uttam; Sethi, Durjyodhan; Roy, Joydeep; Roy, Barnik Saha

doi:10.1080/01694243.2024.2328928

Cited by 3 publications

(2 citation statements)

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“…Above top surface, reinforcements particles were observed. This was possible due to restirring action of the tool that had enabled the particles to come over the surface [25,26]. Hexagonal sharp edges of the tool tend to bring the reinforced particles on the top of the surface from the bottom layer.…”

Section: Microstructural Analysismentioning

confidence: 99%

“…The two main factors, which are reduced grain size and the existence of TiC and GS particles in the stirred zone had enhanced the hardness of AA 6061/TiC/GS composite. The temperature raised during the stirring and restirring phenomenon had annealed the surface material present in the processed zone [25,26]. Sample 3 has got the maximum hardness for AA 6061/4 wt-%TiC/6 wt-%GS composite.…”

Section: Hardness Analysismentioning

confidence: 99%

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Friction stir additive manufactured AA 6061/TiC/GS composite: assessment of microstructural and mechanical properties

Maurya,

Kumar,

Maurya

2024

Phys. Scr.

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Friction stir additive manufacturing (FSAM) technique was used to fabricate the composite. Present investigation deals with the additive manufacturing of three AA 6061 sheets filled with TiC/GS particles in a groove with the variation reinforcement wt.-%. Micro-structural investigation of the fabricated sample was conducted through optical microscopy, SEM and EDS. Optical and SEM results depict the uniform dispersal of the TiC and GS particles in the processed zone. Due to hard TiC and GS particles embedded in AA 6061, an improvement in hardness by 37.2 % was observed for AA 6061/4wt.-%TiC/6wt.-%GS composite. Tensile and compressive strength was enhanced by 25.8% and 11 % for the developed material. Corrosion test and thermal expansion behavior was investigated for the fabricated composite. 0.2 gm was the weight loss observed for the sample kept in NaCl solution for 72 hours. Negligible amount of thermal expansion was noticed for the prepared material. TiC and GS particles, observed in the fractographic image shows the brittle fracture. EDS analysis confirmed the existence of elements like Al, Mg, Mn etc. in the surface of the specimens. The present experimental results were also compared from the previous published work by the various academicians.

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Section: Microstructural Analysismentioning

confidence: 99%

Section: Hardness Analysismentioning

confidence: 99%