metallurgy vs alloy

metallurgy and alloy both are nouns.

Word	Noun	Adjective	Verb	Adverb
metallurgy	Yes	No	No	No
alloy	Yes	No	Yes	No

metallurgy (noun)	alloy (noun)
the science and technology of metals	the state of impairing the quality or reducing the value of something
	a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten

metallurgy (verb)	alloy (verb)
	lower in value by increasing the base-metal content
	make an alloy of