Friction stir welding of pure magnesium and polypropylene in a lap-joint configuration:Microstructure and mechanical properties

Amirhossein Moghanian; Moslem Paidar; Seyyed Salman Seyedafghahi; Olatunji Oladimeji Ojo

doi:10.1007/s12613-019-1784-y

Volume 26 Issue 6

Jun. 2019

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2019 > 26(6): 766-774

Amirhossein Moghanian, Moslem Paidar, Seyyed Salman Seyedafghahi, and Olatunji Oladimeji Ojo, Friction stir welding of pure magnesium and polypropylene in a lap-joint configuration:Microstructure and mechanical properties, Int. J. Miner. Metall. Mater., 26(2019), No. 6, pp. 766-774. https://doi.org/10.1007/s12613-019-1784-y

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Amirhossein Moghanian, Moslem Paidar, Seyyed Salman Seyedafghahi, and Olatunji Oladimeji Ojo, Friction stir welding of pure magnesium and polypropylene in a lap-joint configuration:Microstructure and mechanical properties, Int. J. Miner. Metall. Mater., 26(2019), No. 6, pp. 766-774. https://doi.org/10.1007/s12613-019-1784-y

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Research Article

Friction stir welding of pure magnesium and polypropylene in a lap-joint configuration:Microstructure and mechanical properties

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Corresponding author:
Seyyed Salman Seyedafghahi E-mail: salmanafghahi@gmail.com
Received: 23 June 2018; Revised: 31 August 2018; Accepted: 7 September 2018

Abstract

Abstract

A hybrid joint with a satisfactory mixture of pure magnesium and polypropylene (PP) was achieved via friction stir joining (FSW) in a lap-joint configuration. The tool rotational and travel speeds used in this work were 500-700 r/min and 50-100 mm/min, respectively. The mechanical properties and microstructural analysis of the resultant hybrid Mg/PP joint were examined. The results show that the maximum tensile shear strength (22.5 MPa) of the joint was attained at 700 r/min and 75 mm/min due to the optimum percentage fraction of mechanical interlocking (48%) and the presence of magnesium oxide. The interfacial joint center exhibits the maximum microhardness values because of the presence of refined and intertwined Mg fragments and density dislocations in the matrix of the PP. The joint failed via two different modes:interfacial line and weld zone fractures, respectively.
- welding;
- microstructure;
- pure magnesium;
- polypropylene;
- rotational speed

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References

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