Research Article
The New Plastic Flow Machining Process for Producing Thin Sheets
Table 1
Tensile test results on Al1050 preprocessed by different SPD techniques.
| SPD technique | UTS (MPa) | Uniform El (%) | Total El (%) | Ref. | Initial | Final | Initial | Final | Initial | Final |
| 1 pass PFM at RT | | | | 175 ± 3 | | 6 ± 0.5 | | 18 ± 0.8 | This study | | 70 ± 2 | 169 ± 3 | 31 ± 1 | 7 ± 0.5 | 56 ± 1 | 20 ± 0.8 | | | 160 ± 3 | | 8 ± 0.5 | | 25 ± 0.8 | 8 ECAP passes route Bc at RT + annealing at varying conditions | — | 140/175 | — | 3/3.5 | — | 10/15 | [23] | 4 incremental ECAP passes at RT | 76 | 177 | 35 | 1.5 | 55 | 15 | [24] | 60% reduction in ASR at RT | 100 | 176 | 2 | 2 | 17 | 6.5 | [25] | 7 ARB passes at RT | 110 | 150 | — | — | 12 | 9 | [26] | 4 ECFE passes at RT | 78 | 122 | 32 | 1.5 | 43 | 14.7 | [27] |
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RT: room temperature; UTS: ultimate strength; El: elongation; Ref.: reference; ASR: asymmetric rolling; ARB: accumulative roll bonding; ECFE: equal channel forward extrusion.
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