1170

FIGURE 8.5 Variation of fracture toughness with strength level for CORONA 5 (Ti-4.5Al-5Mo-1.5Cr). At given strength level, lenticular a gives high fracture toughness than a globular morphology [12].

Yield strength, ksi 110 120 130 140 150

Yield strength, ksi 110 120 130 140 150

Yield strength, MPa

FIGURE 8.6 Range of yield strength and fracture toughness for Ti-6Al-4V alloy. ELI is extra low interstitial oxygen (<0.13 wt%), standard oxygen is <0.20 wt% [25].

Yield strength, MPa

FIGURE 8.6 Range of yield strength and fracture toughness for Ti-6Al-4V alloy. ELI is extra low interstitial oxygen (<0.13 wt%), standard oxygen is <0.20 wt% [25].

TÏ-6AMV: Oxygen contant/thermal treatment va fracture toughness

30 40 SO 60 70

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