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Properties of Metal
Definition of Terms
11
Aerospace Engineering
Graduate
09/23/2014

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Term
HARDNESS
Definition
refers to the ability of a material to resist abrasion, penetration, cutting action, or permenanent distortion.
Term
STRENGTH
Definition
the ability of a material to resist deformation and stress without breaking.
Term
DENSITY
Definition
weight of a unit volume of a material.
Term
MALLEABILITY
Definition
can be hammered, rolled, or pressed into various shapes without cracking, breaking, or leaving some other detrimental effect.
Term
DUCTILITY
Definition
property of a metal which permits it to be permanently drawn, bent, or twisted into various shapes without breaking.
Term
ELASTICITY
Definition
property that enables a metal to return to its original size and shape when the force which causes the change of shape is removed.
Term
TOUGHNESS
Definition
can withstand tearing or shearing and may be stretched or otherwise deformed without breaking.
Term
BRITTLENESS
Definition
property of a metal which allows little bending or deformation without shattering.
Term
FUSIBILITY
Definition
ability of a metal to become liquid by the application of heat.
Term
CONDUCTIVITY
Definition
property which enables a metal to carry heat or electricity.
Term
THERMAL EXPANSION
Definition
refers to contraction and expansion that are reactions produced in metals as th result of heating or cooling.
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