Advances in Materials Science and Engineering / 2018 / Article / Tab 5 / Research Article
Mechanical Performance of Zr-Containing 354-Type Al-Si-Cu-Mg Cast Alloy: Role of Additions and Heat Treatment Table 5 Variation in average UTS, YS, % El, Qc, and Q values of the alloys studied in as-cast, SHT, and T5- and T6-treated conditions obtained at ambient temperature.
Alloy Condition UTS (MPa) YS (MPa) Total strain (%) Plastic strain (%) E (GPa)n K q Q c (Equation (2 ))Q (Equation (1 ))Difference (Q − Q c ) (MPa) M1S As-cast 260.86 194.39 1.58 1.16 62.66 0.18 580.56 0.07 277.88 290.50 12.62 SHT 300.34 202.51 6.22 5.74 62.50 0.17 579.26 0.34 512.36 419.43 −92.93 T5 289.50 258.75 0.94 0.48 63.06 0.13 591.69 0.04 217.06 285.43 68.38 T6 341.95 324.99 1.1075 0.56 62.45 0.10 576.91 0.06 281.53 348.60 67.07 M2S As-cast 320.35 235.85 1.63 1.16 67.58 0.19 763.78 0.06 342.14 352.19 10.05 SHT 327.74 212.61 3.20 2.70 66.23 0.17 759.32 0.16 531.09 403.43 −127.66 T5 299.97 277.19 0.80 0.34 65.64 0.15 701.96 0.02 167.10 285.22 118.12 T6 362.33 351.57 0.80 0.24 64.71 0.11 707.79 0.02 196.04 348.16 152.12 M3S As-cast 325.78 245.72 1.76 1.26 64.73 0.15 648.89 0.08 354.71 362.55 7.84 SHT 334.75 209.43 3.81 3.30 64.47 0.12 646.47 0.27 549.26 421.97 −127.29 T5 314.58 279.39 0.98 0.49 64.14 0.13 634.49 0.04 238.21 313.10 74.89 T6 357.01 355.14 0.75 0.20 64.32 0.08 624.21 0.02 192.02 338.50 146.48 M4S As-cast 304.40 224.61 1.33 0.87 66.10 0.20 836.77 0.04 293.64 322.87 29.23 SHT 312.32 207.09 2.22 1.75 66.56 0.18 821.35 0.10 469.59 364.27 −105.32 T5 276.44 254.14 0.71 0.31 68.43 0.20 857.07 0.02 99.28 254.51 155.24 T6 315.98 315.98 0.5705 0.11 67.10 0.10 634.74 0.01 77.52 279.41 201.89 M5S As-cast 297.07 226.59 1.27 0.83 66.91 0.20 792.01 0.04 273.91 312.80 38.89 SHT 299.79 206.64 1.99 1.54 67.35 0.17 780.35 0.09 437.14 344.62 −92.52 T5 284.61 277.00 0.66 0.22 64.74 0.15 722.11 0.01 97.20 257.45 160.25 T6 314.04 314.04 0.56 0.11 67.89 0.11 677.64 0.01 45.43 276.32 230.89