Review Article
Influence of Grain Size and Texture on the Yield Strength of Mg Alloys Processed by Severe Plastic Deformation
Table 1
Summary of the grain size and yield strength of Mg alloys processed by ECAP and CEC.
| Material | Processing | Strain (pass number) | Deformation temp./°C | Initial /m | Final /m | Initial /MPa | Final /MPa | Ref. |
| AZ31 | Ex + ECAP + AN | 8 | 200 | ~15 | ~15 | ~220 | ~110 | Mukai et al. [18] | Ex + ECAP | 6 | 200 | 2.5 | 0.7 | 265 | 217 | Lin et al. [34] | Cast + ECAP | 4 | 200 | 380 | 1~3 | 120 | 210 | Janecek et al. [26] | Ex + ECAP | 4 | 200~320 | 48.3 | 2.5 | 200.5 | 180.3 |
H. K. Kim and W. J. Kim [35] | Ex + ECAP(BC) | 4.4 | 250 | 11 | 5 | 201 | 93 |
Seipp et al. [36] | Ex + ECAP(C) | 8.8 | 250 | 11 | 5.5 | 201 | 72 | Ex + ECAP(BC) | (6P) | 280 | 24 | 4.8 | 202 | 110 | Kim and Jeong [21] | Ex + ECAP(A) | (4P) | 200 | 7 | 1.9 | 142 | 221 |
Ding et al. [17] | Ex + ECAP(BC) | 1.8 | 138 | Ex + ECAP(C) | 1.7 | 118 | Ex + CEC | 10.5 | 300 | 25 | 1.77 | 189 | 140 | Chen et al. [37] |
| AZ31 | Ex + ECAP(BC) | 4 | 200 | 20.2 | 1.6 | 136 | 109.2 |
Masoudpanah and Mahmudi [38] | AZ31 − 0.6RE | 17.2 | 1.3 | ~146 | 129.8 | AZ31 − 0.6Ca | 13.7 | 1.9 | ~160 | 148.2 | AZ31 − 0.3RE − 0.3Ca | 15.1 | 1.2 | ~150 | 134.6 |
| AZ31 | Ex + ECAP(BC) | ~4 | 220 | 29 | 2.5 | 111.7 | 117.5 |
Torbati-Sarraf and Mahmudi [27] | AZ31 + 0.3TiCAl | 19 | 2.1 | 115.5 | 121.1 | AZ31 + 0.6TiCAl | 16 | 2.0 | 120.2 | 125.3 | AZ31 + 1.0TiCAl | 14 | 1.9 | 124.2 | 126.4 |
| AZ61 | Ex + ECAP(BC) | 8 | 275 | 24.4 | 8.4 | 215 | 154 |
Kim et al. [22] | Ex + AN + ECAP(BC) | >400 | 23 | 154 | 125 | Ex + AN + ECAP(A) | >400 | 22 | 154 | 163 |
| AZ91 | Rolling + ECAP | 2 | 200 | 100 | 17 | 145 | 240 | Yamashita et al. [24] |
| ZK60 | Ex + CEC | 6 | 230 | 15.2 | 1.4 | 248 | 215 | Lin et al. [6] | Ex + CEC | 12 | 350 | ~20 | ~1.5 | 238 | 192 | Lin et al. [10] |
| Mg-0.9% Al | Rolling + ECAP | 2 | 200 | 100 | 17 | 57 | 141 |
Yamashita et al. [24] | 300 | 48 | 73.5 | 400 | 78 | 97 |
| Mg-Ni-Y-RE | Ex + ECAP | (1P) | 310 | 4~5 | <1 | 295 | 363 |
Eddahbi et al. [28] | 370 | 1.4 | 340 |
| Mg-5.25 Zn-0.6Ca | Ex + ECAP(A) | 4.2 | 250 | 4.3 | 1.3 | 178 | 246 |
Tong et al. [29] | Ex + ECAP(BC) | 0.7 | 180 | Ex + ECAP(C) | 0.8 | 131 |
| Mg-10Gd-2Y-0.5Zr | Ex + CEC | 21.9 | 450 | 18 | <1 | 225 | 270 | Peng et al. [13] | Ex + CEC | 12.2 | 350 | 18 | 1.3 | 225 | 321 | Lin [39] |
| Mg-Zn-Y-Nd | Ex + CEC | 4 | 250 | 10~15 | ~1 | 183 | 185 | Wu et al. [31] |
| Mg-Nd-Zn-Zr | Ex + CEC | 12 | 350 | 5~20 | ~1 | ~172 | ~280 | Zhang et al. [30] |
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Note. A: route A, BC: route BC, C: route C, Ex: extrusion, P: pass, AN: anneal, : grain size, and : yield stress.
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