Consider the graph below for 3 metals which have been cold-worked. From the graphs, which of the following statements are true? Stress o Select one or more: a. O b. O C. O d. O e. O f. Strain & A B A is harder than C and is less ductile C A and B have similar hardness; A has greater brittleness B is softer than C and has nearly similar ductility B and C have similar hardness; C has greater brittleness A is harder than C and is more ductile B is harder than C but has nearly similar ductility

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Alloys

An alloy is an admixture of two or more metals or a metal and a non-metal. Since ancient times, man has been using alloys. Alloying helps to retain the properties of the parent matter, such as hardness, strength, toughness, ductility and is corrosion-resistant. Copper alloys such as brass have antimicrobial properties that help to fight against (Coronavirus disease 2019) COVID-19 and other hospital-acquired infections. Some common alloys are brass, bronze, solder steel, etc. Most alloys have a lower melting point than their constituents. This is due to the presence of a nonmetal as one of the constituents that behaves as an impurity and restricts the raise of melting point.