Metals and their properties Flashcards
1.1
Material Properties
- Strength
- Ductility
- Malleability
- Hardness
- Toughness and Brittleness
- Stiffness
What is strength?
The ability to withstand a force that is applied to a material.
Different types of strength
- Tensile
- Compressive
- Torsional
What is tensile strenght
The ability to resist a pulling force
What is compressive strength
The ability to resist a squeezing force
What is torsional strength
The ability to resist a twisting force
What is yield strength
The amount of stress needed to start permanently deforming a material
What is ultimate tensile strength
The amount of stress at which the material fails
Equation for stress
Stress = force/cross-sectional area
What is ductility
The amount that a material can be deformed.
What is the equation for strain
Strain = change in length/original length
What is malleability
The ability of a material to be deformed without rupturing.
What is hardness
The ability of a material to resist wear and abrasion
What is toughness/brittleness
The ability of a material to withstand an impact without breaking. A tough material might bend or be dented but it will not crack. A brittle material will shatter in response to an impact.
What is stiffness
Stiffness is the ability of a material to resist bending. This is shown by Young’s Modulus of a material
