Investigation of the microstructure, mechanical and wear properties of AA6061-T6 friction stir weldments with different particulate reinforcements addition

Abioye, T.E.; Hussain, Zuhailawati; Anasyida, Abu Seman; Yahaya, S A; Dhindaw, B. K.

doi:10.1016/j.jmrt.2019.06.055

Cited by 46 publications

(30 citation statements)

References 27 publications

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“…The calculated wear loss of pins at different testing temperatures are plotted graphically in figure 6. Reduced wear rate indicated by automatic recording of low COF is also reported for reinforced friction stir welded joints [23].…”

Section: Pin On Disc Wear Testing Results Of Stellite 6 Claddingsmentioning

confidence: 67%

Investigations on high temperature wear and metallurgical characteristics of Stellite 6 GTA (Gas Tungsten Arc) weld claddings

Prakash

Shahi

2020

Mater. Res. Express

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Stellite 6, a cobalt based superalloy was deposited on mild steel AISI 1020 using Gas tungsten arc welding (GTAW) process. The claddings were overlaid in four conditions viz. single layer cladding, double layer cladding, single layer cladding with remelting and double layer cladding with remelting, where remelting of the topmost layer was carried out using autogeneous GTA arc itself. The chemical composition, microstructure, wear mechanism and phase composition of the substrate and coatings were characterized by spectroscopy, optical microscopy, scanning electron microscopy, energy dispersive spectroscopy and x-ray diffraction. The hardness and wear characteristics of different cladded samples were measured using microhardness tester and pin on disc high temperature tribometer respectively. The results show that remelting of Stellite 6 clad layers resulted into microstructural modification that increased their hardness significantly which consequentially improved their wear performance. Oxidative layer formation that occurred at 300°C reduced frictional resistance which resulted into better wear performance of Stellite 6 clad pins. Further, a critical clad thickness was established based upon the wear performance of these claddings and it was observed that 5 mm Stellite clad thickness was sufficent enough to impart uniform wear behavior to these claddings when subjected to high temperature two body abrasive wear applications.

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Section: Pin On Disc Wear Testing Results Of Stellite 6 Claddingsmentioning

confidence: 67%

Investigations on high temperature wear and metallurgical characteristics of Stellite 6 GTA (Gas Tungsten Arc) weld claddings

Prakash

Shahi

2020

Mater. Res. Express

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“…The microstructure of the cross-sectional area of the reinforced and unreinforced joints in comparison with the base metal morphology has been previously discussed, extensively, by the authors. 14 It was found that the entire friction stir welded joints exhibited substantially better grain refinement than the base metal (see Figure 3). However, the reinforced joints possessed smaller grains than the unreinforced joint (19.1 AE 1.4 mm).…”

Section: Microstructurementioning

confidence: 95%

“…FSW-Al 2 O 3 joint was obviously characterised with particle agglomeration and particle-free regions. 14 There are some regions that were moderately dispersed with the Al 2 O 3 particles.…”

Section: Microstructurementioning

confidence: 99%

“…The utilised parameters were selected based on the previous work done by the authors. 14 The FSW tool made of high-speed steel (HSS) was used. The tool has a shoulder of diameter 20 mm.…”

Section: Friction Stir Welding Processmentioning

confidence: 99%

“…The few existing literature on the reinforcement addition to the friction stir welded joint of AA 6061-T6 and other heat-treated aluminium alloys has established noticeable improvements in the hardness and wear resistance properties of the reinforced joints. 10,14,15 Till date, investigation of the tensile and impact strengths of the particle reinforced AA 6061-T6 is scanty. Achieving significant improvements in both tensile and impact strengths of particle-reinforced friction stir welded joint is difficult because increasing the particle content in metal matrix composites increases their fracture tendency.…”

Section: Introductionmentioning

confidence: 99%

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Effects of particulate reinforcements on the hardness, impact and tensile strengths of AA 6061-T6 friction stir weldments

Abioye

Hussain

Anasyida

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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Due to loss of structural strengthening at temperatures beyond 250°C, heat-treated aluminium alloys (e.g. AA 6061-T6) weldments are usually characterized with poor mechanical properties including hardness, tensile and impact strengths. In this work, friction stir weldments of AA 6061-T6 reinforced with the additions of SiC, B4C and Al2O3 particles at the joints were produced and investigated for improved hardness, tensile strength and impact strength over the unreinforced weldment. The results showed that the entire reinforced welded joint exhibited improved hardness because of the enhanced metal matrix grain refinement and inherent high hardness of the reinforcement particles. B4C particle addition produced hardest joint of about 81% of the base metal hardness (∼114 HV0.3). The impact energies of the SiC (16.9 J), B4C (16.5) and Al2O3 (12.2 J) reinforced weldments are closer to that of the base metal (18.6 J) compared with the unreinforced weldment (9.6 J). The reinforced weldments showed no significant improvement over the tensile strength of the unreinforced weldment. B4C and SiC reinforcements produced the highest improvements in the hardness (at the joint) and impact strength of the AA 6061-T6 friction stir weldments, respectively.

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Comparative Analysis of Microstructural and Mechanical Characteristics of ReinforcedFSWWelds

Singh

2024

Friction Stir Welding and Processing

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Investigation of the microstructure, mechanical and wear properties of AA6061-T6 friction stir weldments with different particulate reinforcements addition

Cited by 46 publications

References 27 publications

Investigations on high temperature wear and metallurgical characteristics of Stellite 6 GTA (Gas Tungsten Arc) weld claddings

Investigations on high temperature wear and metallurgical characteristics of Stellite 6 GTA (Gas Tungsten Arc) weld claddings

Effects of particulate reinforcements on the hardness, impact and tensile strengths of AA 6061-T6 friction stir weldments

Comparative Analysis of Microstructural and Mechanical Characteristics of ReinforcedFSWWelds

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