Characterization, Mechanical and Corrosion Behavior of Mg-Sn-Pb Alloy Produced by Friction Surface Alloying
The current paper demonstrates friction-assisted surface alloying to produce Mg-Sn-Pb alloy within the solid state by using friction stir processing (FSP) principle. A groove is machined on the surface of pure magnesium sheet and a thin wire of Sn-Pb was inserted into the groove and then FSP was car...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2025-06-01
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| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/135525/AMM-2025-2-48-Buradagunta.pdf |
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| Summary: | The current paper demonstrates friction-assisted surface alloying to produce Mg-Sn-Pb alloy within the solid state by using friction stir processing (FSP) principle. A groove is machined on the surface of pure magnesium sheet and a thin wire of Sn-Pb was inserted into the groove and then FSP was carried out on the surface. In order to achieve uniformity in the alloy formation, second pass was also carried out on the stirred region. Development of Mg-Sn-Pb alloy was observed at the surface as reflected from the corresponding X-ray diffraction peaks. Surface micro-hardness of the produced surface Mg-Sn-Pb alloy was significantly increased than pure Mg. Corrosion behavior was assessed by polarization tests and the result indicated higher corrosion resistance for the produced alloy due to the developed solid solution grains. Both the first-pass and second-pass samples have exhibited similar levels of corrosion resistance. Higher tensile strength (148.7 ± 5.1 MPa) was observed for the produced surface alloy and second-pass marginally elevated the tensile strength (152.1 ± 3.8 MPa) compared with Mg (106.2 ± 4.2 MPa). Higher ductility was also observed as reflected from the increased % of elongation (7.4 ± 0.8 and 8.2 ± 1.1) for the produced alloys compared with Mg (4.3 ± 0.7). The present work demonstrates the potential of friction surface alloying to develop Mg-Sn-Pb alloy without melting the base material that exhibits improved corrosion and tensile properties. Furthermore, it is also concluded that the second pass marginally increases the corrosion and mechanical performance of the alloy. |
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| ISSN: | 2300-1909 |