Elucidating the Effect of Additive Friction Stir Deposition on the Resulting Microstructure and Mechanical Properties of Magnesium Alloy WE43
| Autor: | Ryan P. Kinser, M. B. Williams, J.B. Jordon, T. W. Robinson, N. A. Ashmore, C. J. Williamson, Paul G. Allison |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Fabrication
Materials science Mining engineering. Metallurgy additive friction stir deposition Metals and Alloys TN1-997 Microstructure magnesium alloy WE43 Characterization (materials science) Ultimate tensile strength Deposition (phase transition) General Materials Science Process window solid-state additive manufacturing Texture (crystalline) Magnesium alloy Composite material texture analysis fatigue behavior |
| Zdroj: | Metals, Vol 11, Iss 1739, p 1739 (2021) Metals Volume 11 Issue 11 |
| ISSN: | 2075-4701 |
| Popis: | In this work, the effect of processing parameters on the resulting microstructure and mechanical properties of magnesium alloy WE43 processed via Additive Friction Stir Deposition (AFSD), a nascent solid-state additive manufacturing (AM) process, is investigated. In particular, a parameterization study was carried out, using multiple four-layer deposits, to identify a suitable process window for a structural 68-layers bulk WE43 deposition. The parametric study identified an acceptable set of parameters with minimal surface defects and excellent consolidation for the fabrication of a bulk WE43 deposition. Microstructural, tensile, and fatigue life characterization was conducted on the bulk WE43 deposition and compared to commercially available wrought material to elucidate the process-structure-property-performance (PSPP) relationship of the AFSD process. This study shows that the bulk WE43 deposit exhibited a refined homogenous microstructure and a texture shift relative to the wrought material. However, a reduction in hardness and tensile behavior was observed in the as-deposited WE43 compared to the wrought control. Additionally, fatigue specimens extracted from the bulk deposition exhibited a decrease in life in the low-cycle regime but performed comparably to the wrought plate in the high-cycle regime. The outcomes of this study illustrate the potential of the AFSD process in additively manufactured structural load-bearing components made with magnesium alloy WE43 in the as-built condition. |
| Databáze: | OpenAIRE |
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