Question

According to the decreasing order of toughness. list the following materials (note: the steels are assumed to have no cold work and contain equilibrium phases). Diamond, 1040 steel, 1090 steel, pure aluminum

Answer 1

1090 Steel >1040 Steel > Pure aluminium >Diamond.

Step-by-step explanation:

Toughness:

Toughness can be define as the are of load -deflection diagram up to fracture point.

Modulus of toughness can be defines as the area of stress-strain diagram up to fracture point.Modulus of toughness is the property of material.

So the decreasing order of toughness can be given as follows

1090 Steel >1040 Steel > Pure aluminium >Diamond.