Answer Happy

Choose AlL correct statements about impurities in materials Select one or more: a. Solute is the element that is present in the greatest amount. b. Edge dislocation happens when the direction of the applied shear stress is perpendicular to the direction of dislocation line motion c. Metals with small grains lead to relatively strong and tough at low temperatures. d. The crystal structure for metals of two atom types have to be the same for appreciable solid solubility. e. Toughness can be greatly increased with more number of slip systems. f. Cold-working cannot be reverted by heat treatment.