Effects of welding environment on microstructure and mechanical properties of friction stir welded AZ91C magnesium alloy joints

Rouhi, S.; Mostafapour, Amir; Ashjari, M.

doi:10.1179/1362171815y.0000000058

Cited by 33 publications

(12 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the chosen set of process parameters, ultimate hardness was defined at 966.14 devices rotational speed. Therefore, the tool rotation speed was not understood to be too high or too low by looking at the chart [18][19][20].…”

Section: Effect Of Tool Rotational Speed On Hardnessmentioning

confidence: 99%

Effect of Friction Stir Process Parameters on Mechanical Properties of Al/Eggshell/SiC Composite Material

Islam¹,

Dwivedi²,

Dwivedi³

2021

ACSM

View full text Add to dashboard Cite

The rise in pollution is a serious matter of concern for all nations. Industries are mainly responsible for damaging the balance of the cycle of pollution. In this paper, the mechanical properties of Aluminum have been enhanced by reinforcing it with eggshell wastes and SiC as reinforcement particles. Ball-milling technique has been applied for up to 75 hours for making the densities of Aluminum, Eggshell and SiC equal. The prime focus of this work is to improve the hardness value of Aluminium-based final composite material. Friction Stir Process (FSP) technique has been used to develop the composite and the driving parameters of FSP like rotational speed, transverse speed etc. are optimized with the help of the Box-Behnken Design approach. The optimized value of rotation speed was 966.14 rpm as well as transverse speed was 23.18 mm/min. Hardness and tensile strength of composite developed at an optimum combination of parameters were found to be 72.2 BHN and 194.48 MPa respectively. Results showed that tensile strength and hardness were enhanced by about 44.05% and 64.09% respectively.

show abstract

Section: Effect Of Tool Rotational Speed On Hardnessmentioning

confidence: 99%

Effect of Friction Stir Process Parameters on Mechanical Properties of Al/Eggshell/SiC Composite Material

Islam¹,

Dwivedi²,

Dwivedi³

2021

ACSM

View full text Add to dashboard Cite

show abstract

“…The best alternative approach in this regard would be to recycle the wastes generated by the industries (Velosa et al, 2013;Yuvaraj et al, 2015;Saini et al, 2015). Many nations including developing ones such as India are constantly working in this direction by encouraging the researchers and scientists to use more and more recycled products (Rouhi et al, 2015;Rana et al, 2017;Kurt et al, 2016). There are many benefits of recycling the wastes some of them are less pollution, conservation of natural sources, which are replenishing very fast, and of course, there would be less investment of capital (Huang et al, 2018;Hamdollahzadeh et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Analysis of mechanical properties of Al-based metal matrix composite reinforced with ES and RHA

Yadav

Dwivedi

Islam

et al. 2021

WJE

View full text Add to dashboard Cite

Purpose Aluminium metal matrix composite (AMMC) is most popular in various industrial applications such as aerospace, automobile, marine, sports and many others. In common practice, silicon carbide, aluminum oxides, magnesium oxide, graphene and carbon nano tubes are the major reinforcing elements to prepare the AMMC. The purpose of this paper is to develop AMMCs reinforce with eggshell (ES) and rice husk ash (RHA). Design/methodology/approach Stir casting process is used for preparation of AMMC. From past few years, more emphasis is given to prepare the AMMCs using agro waste such as rice husk and/or ES as reinforcing materials. In this method, after the Al-matrix material is melted; it is stirred vigorously to form vortex at the surface of the melt, and the reinforcement material is then introduced at the side of the vortex. Stir casting process is a vortex and vigorous method to prepare the AMMCs. First, aluminum alloy (AA3105) is melted in the furnace when metal is in semisolid form. Reinforcement, i.e. ES and RHA are preheated at temperature 220°C and 260°C, respectively. Findings The result of AMMC shows that the tensile strength and hardness increased by using 22.41% and 45.5%, respectively, at 4.75 Wt.% each reinforcement, i.e. ES and RHA, and 1% Cr. The toughness and ductility of metal matrix composite (MMCs) have decreased up to 23.31% and 19.23% respectively by using 1% Cr, 4.75 wt. % ES and by 4.75 wt. % RHA of composite material. Originality/value In this work, Cr, waste ES and RHA have been used to develop green MMC to support the green revolution as promoted/suggested by United Nations, thus reducing the environmental pollution.

show abstract

“…Friction stir welding (FSW) is a revolutionary welding technology invented by The Welding Institute in the 1990s. It is especially suitable for welding aluminium alloys [ 1 , 2 ], and is widely used in aerospace, ships and pressure vessels. Fatigue fracture is the main failure form of welded structural parts.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Behaviour of 7N01-T4 Aluminium Alloy Welded by Ultrasonic-Assisted Friction Stir Welding

Zhang

et al. 2020

Materials

View full text Add to dashboard Cite

This study investigates the effects of axial ultrasonic vibration on the microstructure evolution, residual stresses distribution and fatigue fracture behaviour of a 7N01-T4 joint, and demonstrates that ultrasonic vibration can significantly promote the flow of plasticised metals, expand the stirred zone (SZ) width and refine the grain size. The longitudinal residual stresses of the joints are dominant, and the peak longitudinal residual stresses of the thermo-mechanically affected zone (TMAZ) on the advancing side (AS) (TMAZ-AS) in the ultrasonic-assisted friction stir welding (UAFSW) joint are 31.5 MPa lower than those in the friction stir welding (FSW) joint. Compared to that of FSW joints, the fatigue strength of UAFSW joints increases by 20 MPa at 107 cycles (stress ratio of R = 0.1). At high-stress levels, crack initiation occurs at the TMAZ-AS, and is mainly attributed to high residual stresses and second-phase particles. At low-stress levels, fatigue cracks are likely to initiate in the transition zone (TZ).

show abstract

Effects of welding environment on microstructure and mechanical properties of friction stir welded AZ91C magnesium alloy joints

Cited by 33 publications

References 30 publications

Effect of Friction Stir Process Parameters on Mechanical Properties of Al/Eggshell/SiC Composite Material

Effect of Friction Stir Process Parameters on Mechanical Properties of Al/Eggshell/SiC Composite Material

Analysis of mechanical properties of Al-based metal matrix composite reinforced with ES and RHA

Fatigue Behaviour of 7N01-T4 Aluminium Alloy Welded by Ultrasonic-Assisted Friction Stir Welding

Contact Info

Product

Resources

About