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Table 1 Relationship between the strain amplitude failure lives and the defect sizes

From: Fatigue Property of Additively Manufactured Ti-6Al-4V under Nonproportional Multiaxial Loading

Type of loading Heat treatment Δεeq/2 Nf Ddefect
(%) Cycles (μm)
PP NHT 0.85 61 161
0.65 790 77
0.50 4152 70
0.50 1429 197
0.35 16969 9
0.25 65771 7
HT 0.65 81 381
0.50 4127 501
0.35 12354 167
0.25 30504 374
CI NHT 0.50 278 179
0.35 2328 281
0.25 58129 105
HT 0.35 1240 591
0.25 8945 232
0.25 4540 55