Table 4 Fatigue properties of SAC 305 solder joints under different experimental conditions.
Testing temperature (°C) | Dwell time (s) | Fatigue properties | Stress amplitude (MPa) | ||
|---|---|---|---|---|---|
16 | 20 | 24 | |||
25 | 0 | Inelastic work (J) | 2.45 × 10–5 | 4.45 × 10–5 | 6.69 × 10–5 |
Plastic strain | 0.00499 | 0.00963 | 0.01500 | ||
60 | 0 | Inelastic work (J) | 4.53 × 10–5 | 7.44 × 10–5 | 14 × 10–5 |
Plastic strain | 0.00843 | 0.01240 | 0.02600 | ||
100 | 0 | Inelastic work (J) | 7.94 × 10–5 | 12 × 10–5 | 26.9 × 10–5 |
Plastic strain | 0.01018 | 0.01898 | 0.07637 | ||
25 | 10 | Inelastic work (J) | 4.2 × 10–5 | 6.9 × 10–5 | 11.3 × 10–5 |
Plastic strain | 0.00802 | 0.01637 | 0.02041 | ||
60 | 10 | Inelastic work (J) | 5.68 × 10–5 | 16.3 × 10–5 | 28.1 × 10–5 |
Plastic strain | 0.01398 | 0.04267 | 0.05280 | ||
100 | 10 | Inelastic work (J) | 13.9 × 10–5 | 26.8 × 10–5 | 41.2 × 10–5 |
Plastic strain | 0.04935 | 0.06923 | 0.12838 | ||
25 | 60 | Inelastic work (J) | 6.11 × 10–5 | 11.6 × 10–5 | 14.3 × 10–5 |
Plastic strain | 0.01043 | 0.02065 | 0.03181 | ||
60 | 60 | Inelastic work (J) | 15.2 × 10–5 | 20.7 × 10–5 | 33.9 × 10–5 |
Plastic strain | 0.01642 | 0.05576 | 0.12906 | ||
100 | 60 | Inelastic work (J) | 20.1 × 10–5 | 38.9 × 10–5 | 57.1 × 10–5 |
Plastic strain | 0.07431 | 0.18665 | 0.23974 | ||
25 | 180 | Inelastic work (J) | 9.93 × 10–5 | 20.9 × 10–5 | 17.1 × 10–5 |
Plastic strain | 0.01639 | 0.02753 | 0.04192 | ||
60 | 180 | Inelastic work (J) | 21.7 × 10–5 | 32.1 × 10–5 | 39.4 × 10–5 |
Plastic strain | 0.01798 | 0.08562 | 0.15702 | ||
100 | 180 | Inelastic work (J) | 27.4 × 10–5 | 50.7 × 10–5 | 59.9 × 10–5 |
Plastic strain | 0.13372 | 0.22063 | 0.26092 | ||
