Problem sheet 13

[1] The ranges of fracture toughness (M Pa m1/2) and yield strength (M Pa) for steel, aluminium and titanium alloys are given as follows (Data form Ref. [1]). Plot the data (on a graph sheet with log scales) to obtain the corresponding property chart.

Alloy Yield strength Fracture toughness
2014-T651 455 24.2
2024-T3 345 44
2024-T851 455 26.4
7075-T651 495-570 24.2-23.1
7178-T7651 490 33
Ti-6Al-4V 910-1035 115.4-55
4340 860-1515 98.9-60.4
4335 +V 1340 72.5
17-7PH 1435 76.9
15-7Mo 1415 49.5
H-11 1790-2070 38.5-27.5
350 Maraging 1550 — 2240 55. - 38.5
52100 2070 14.3

Reference:

[1] Deformation and fracture mechanics of engineering materials, Richard W Hertzberg, John Wiley & Sons, Fourth Edition, 1996.

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