Table 4.
Results of the ultrasonic tests and determined elastic parameters of the tested cast iron grades.
| Cast Iron Grade | Chemical Composition | Disc Code | Average Speed (mm/µs) | E (GPa) |
E According to Chemical Composition (GPa) |
Standard Deviation σ(E) | Poisson’s Number | Density, g/cm3 |
|
|---|---|---|---|---|---|---|---|---|---|
| VL | VS | ||||||||
| A | MIN | Disc 1 | 4.87 | 2.71 | 135 | 135 | 3.15 | 0.26 | 7.192 |
| Disc 2 | 4.84 | 2.72 | 135 | ||||||
| OPT | Disc 1 | 4.77 | 2.67 | 131 | 131.5 | 0.26 | 7.188 | ||
| Disc 2 | 4.78 | 2.69 | 132 | ||||||
| MAX | Disc 1 | 4.71 | 2.64 | 128 | 128 | 0.26 | 7.181 | ||
| Disc 2 | 4.69 | 2.65 | 128 | ||||||
| B | MIN | Disc 1 | 4.51 | 2.59 | 120 | 121 | 2.34 | 0.26 | 7.148 |
| Disc 2 | 4.54 | 2.61 | 122 | ||||||
| OPT | Disc 1 | 4.55 | 2.59 | 121 | 120.5 | 0.27 | 7.143 | ||
| Disc 2 | 4.52 | 2.58 | 120 | ||||||
| MAX | Disc 1 | 4.52 | 2.53 | 117 | 116.5 | 0.26 | 7.319 | ||
| Disc 2 | 4.47 | 2.54 | 116 | ||||||
| C | MIN | Disc 1 | 4.47 | 2.54 | 116 | 116 | 4.32 | 0.27 | 7.117 |
| Disc 2 | 4.50 | 2.54 | 116 | ||||||
| OPT | Disc 1 | 4.43 | 2.51 | 113 | 112.5 | 0.27 | 7.113 | ||
| Disc 2 | 4.39 | 2.50 | 112 | ||||||
| MAX | Disc 1 | 4.30 | 2.44 | 107 | 106.5 | 0.26 | 7.111 | ||
| Disc 2 | 4.29 | 2.43 | 106 | ||||||