Determine what material fits the description.

i) The maximum length that can be reached by applying tension on a 50 cm metal bar before it begins to plastically deform is 50.04 cm.

ii) The material with the lowest strain at yield stress.

iii) The materials with the highest strain at yield stress

iv) The required applied force to plastically deform a tensile specimen with a rectangular cross- sectional arce (10 mm x 5 mm) is 22.5 kN.

Material Tungsten Steel Nickel Titanium Brass Aluminum Magnesium Yield Strength [MPa] 550 180 138 450 77 35 130 Modulus of Elasticity [GPa] 407 207 190 107 97 69 45 Strain- Hardening exponent 0.21 0.15 0.20 0.17 0.16 K MPa -- 600 1400 585 780 450