e) Referring to Figure 1, illustrate the stress-strain curves for both metals, (i) and (ii), accordingly. Label the regions, associated to the energy absorbance that
e) Referring to Figure 1, illustrate the stress-strain curves for both metals, (i) and (ii), accordingly. Label the regions, associated to the energy absorbance that cause the material to fail. State the differences of (i) and (ii) based on your illustrated stress-strain curve. [5 marks] (i) (ii) Figure 1: Fractured tensile test specimens f) Identify the crystal structure and the number of atoms per unit cell of Mg and Fe in Figure 2. Explain the difference of mechanical strength between these materials based on the crystal structure and interatomic bonding. [5 marks] (i) (ii) Figure 2: Crystal lattices of (i) Mg and (ii) Fe
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