Table 3 Results of two-way ANOVA for flexural strength, Vickers hardness, and fracture toughness
Test method | Source of variation | Sum of squares | df | Mean square | F | p |
|---|---|---|---|---|---|---|
Flexural strength | Material | 820,499.7 | 4 | 205,124.9 | 20,258.7 | 0.001** |
Aging | 8716.5 | 1 | 8716.5 | 860.9 | 0.001** | |
Material*Aging | 12,610.5 | 4 | 3152.6 | 311.4 | 0.001** | |
Error | 911.3 | 90 | 10.1 | |||
Total | 4,101,565.2 | 100 | ||||
Vickers hardness | Material | 526.6 | 4 | 131.6 | 156,616.9 | 0.001** |
Aging | 0.4 | 1 | 0.4 | 491.9 | 0.001** | |
Material*Aging | 0.8 | 4 | 0.2 | 246.2 | 0.001** | |
Error | 0.1 | 90 | 0.0 | |||
Total | 2344.4475 | 100 | ||||
Fracture toughness | Material | 15.2 | 4 | 3.8 | 3984.7 | 0.001** |
Aging | 0.8 | 1 | 0.8 | 851.4 | 0.001** | |
Material*Aging | 1.2 | 4 | 0.3 | 311.6 | 0.001** | |
Error | 0.1 | 90 | 0.0 | |||
Total | 278.2 | 100 |