Science of metals and metalworking. Play Metallurgy trivia solo to sharpen your knowledge, or challenge a friend head-to-head in Trivia Tango — every question comes with an explanation so you learn as you play. Questions span every level, from easy warm-ups to expert-level stumpers, so there's a real challenge here however much you already know.
A mix of easy, medium and hard — questions run from warm-up to expert, so there's a real challenge at every level. Think you know the answers? Play to find out.
This reddish-brown metal is an excellent conductor of electricity and is used in wiring throughout homes and buildings.
Difficulty: EasyThis microstructure forms at intermediate cooling rates between pearlite and martensite, offering a good balance of strength and toughness.
Difficulty: MediumThis dimensionless number in heat treatment represents the ratio of internal thermal resistance to surface thermal resistance during quenching.
Difficulty: HardThis process involves heating metal to high temperatures and then cooling it slowly to reduce hardness and increase ductility.
Difficulty: EasyThis transformation occurs when retained austenite in quenched steel converts to martensite at sub-zero temperatures.
Difficulty: MediumThis hardenability parameter, expressed in inches or millimeters, represents the diameter of a round bar that will harden to 50% martensite at its center.
Difficulty: HardThis common alloy combines iron with a small percentage of carbon to create one of civilization's most important materials.
Difficulty: EasyThis iron-nickel alloy has nearly zero thermal expansion and is used in precision instruments and electronics where dimensional stability is critical.
Difficulty: Medium