Metals Flashcards
What are some common properties of metals that make them useful in engineering applications?
High strength, ductility, malleability, good electrical and thermal conductivity, and resistance to wear and corrosion.
What is the difference between ferrous and non-ferrous metals?
Ferrous metals contain iron, while non-ferrous metals do not.
What are some common ferrous metals used in engineering applications?
Steel, cast iron, and wrought iron.
What are some common non-ferrous metals used in engineering applications?
Copper, aluminum, brass, bronze, and nickel.
What is the difference between a pure metal and an alloy?
A pure metal is made up of only one type of metal atom, while an alloy is a mixture of two or more metals or a metal and a non-metal.
What is annealing and how is it used to modify the properties of metals?
Annealing is a heat treatment process that involves heating a metal to a specific temperature and then cooling it slowly. This process can be used to soften metals, improve their ductility, and reduce internal stresses.
What is work hardening and how does it occur in metals?
Work hardening is the process of making a metal harder and stronger by deforming it through mechanical processes such as bending, twisting, or rolling.
What is the difference between a cast metal and a wrought metal?
A cast metal is formed by pouring molten metal into a mold and allowing it to cool and solidify, while a wrought metal is formed by shaping the metal through mechanical processes such as rolling, forging, or extrusion.
