AZ31 magnesium alloy recycling through friction stir extrusion process
Source abstract
Abstract
Friction Stir Extrusion is a novel technique for direct recycling of metal scrap. In the process, a dedicated tool produces both the heat and the pressure to compact and extrude the original raw material, i.e., machining chip, as a consolidated component. A proper fixture was used to carry out an experimental campaign on Friction Stir Extrusion of AZ31 magnesium alloy. Variable tool rotation and extrusion ratio were considered. Appearance of defects and fractures was related to either too high or too low power input. The extruded rods were investigated both from the metallurgical and mechanical points of view. Tensile strength up to 80 % of the parent material was found for the best combination of process parameters. A peculiar 3D helical material flow was highlighted through metallurgical observation of the specimens.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Advanced Welding Techniques Analysis · Bauxite Residue and Utilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (16)
Show source-provided references
1. Jovane F, Yoshikawa H, Alting L, Boër CR, Westkamper E, Williams D, Tseng M, Seliger G, Paci AM (2008) The incoming global technological and industrial revolution towards competitive sustainable manufacturing. CIRP Ann Manuf Technol 57(2):641–65910.1016/j.cirp.2008.09.010 ↗
2. Gronostajski J, Matuszak A (1999) Recycling of metals by plastic deformation: an example of recycling of aluminium and its alloys chips. J Mater Process Technol 92–93:35–4110.1016/S0924-0136(99)00166-1 ↗
3. Hanko G, Antrekowitsch H, Ebner P (2002) Recycling automotive magnesium scrap. JOM 54(2):51–5410.1007/BF02701075 ↗
4. Puga H, Barbosa J, Soares D, Silva F, Ribeiro S (2009) Recycling of aluminium swarf by direct incorporation in aluminium melts. J Mater Process Technol 209(11):5195–520310.1016/j.jmatprotec.2009.03.007 ↗
5. Fogagnolo JB, Ruiz-Navas EM, Simón MA, Martinez MA (2003) Recycling of aluminium alloy and aluminium matrix composite chips by pressing and hot extrusion. J Mater Process Technol 143–144(1):792–79510.1016/S0924-0136(03)00380-7 ↗
6. Hu M, Ji Z, Chen X, Zhang Z (2008) Effect of chip size on mechanical property and microstructure of AZ91D magnesium alloy prepared by solid state recycling. Mater Charact 59(4):385–38910.1016/j.matchar.2007.02.002 ↗
7. Tang W, Reynolds AP (2010) Production of wire via friction extrusion of aluminum alloy machining chips. J Mater Process Technol 210(15):2231–223710.1016/j.jmatprotec.2010.08.010 ↗
8. Canter N (2011) Friction-stir: Alternative to melting and casting metal: a new technique has been developed that minimizes degradation of metal alloys. Tribol Lubr Technol 67(12):8–9
9. Kleiner M, Geiger M, Klaus A (2003) Manufacturing of lightweight components by metal forming. CIRP Ann Manuf Technol 52(2):521–54210.1016/S0007-8506(07)60202-9 ↗
10. Cherubini F, Raugei M, Ulgiati S (2008) LCA of magnesium production. Technological overview and worldwide estimation of environmental burdens. Resour Conserv Recycl 52(8–9):1093–110010.1016/j.resconrec.2008.05.001 ↗
11. Wen L, Ji Z, Li X (2008) Effect of extrusion ratio on microstructure and mechanical properties of Mg-Nd-Zn-Zr alloys prepared by a solid recycling process. Mater Charact 59(11):1655–166010.1016/j.matchar.2008.03.009 ↗
12. Wu S, Ji Z, Zhang T (2009) Microstructure and mechanical properties of AZ31B magnesium alloy recycled by solid-state process from different size chips. J Mater Process Technol 209(12–13):5319–532410.1016/j.jmatprotec.2009.04.002 ↗
13. Nakanishi M, Mabuchi M, Saito N, Nakamura M, Higashi K (1998) Tensile properties of the ZK60 magnesium alloy produced by hot extrusion of machined chip. J Mater Sci Lett 17(23):2003–200510.1023/A:1006668924650 ↗
14. Chino Y, Sassa K, Kamiya A, Mabuchi M (2006) Enhanced formability at elevated temperature of a cross-rolled magnesium alloy sheet. Mater Sci Eng A 441(1–2):349–35610.1016/j.msea.2006.08.038 ↗
15. Fratini L, Buffa G, Palmeri D, Hua J, Shivpuri R (2006) Material flow in FSW of AA7075-T6 butt joints: numerical simulations and experimental verifications. Sci Technol Weld Join 11(4):412–42110.1179/174329306X113271 ↗
16. Afrin N, Chen DL, Cao X, Jahazi M (2008) Microstructure and tensile properties of friction stir welded AZ31B magnesium alloy. Mater Sci Eng A 472(1–2):179–18610.1016/j.msea.2007.03.018 ↗