Material Properties

?
Elasticity
The ability to RETURN TO ORIGINAL SHAPE AND SIZE AFTER a force is removed. All materials have an ELASTIC LIMIT beyond which, PERMANENT DEFORMATION and ultimately FRACTURE will occur. e.g. SPRING, ELASTIC BAND
1 of 11
PLASTICITY
The ability to PERMANENTLY DEFORM, WITHOUT FRACTURE when a force is applied which occurs AFTER EXCEEDING THE ELASTIC LIMIT. The deformed material is said to take on a 'PERMANENT SET'. “DUCTILITY” and “MALLEABILITY” are cases of this property
2 of 11
DUCTILITY
The ability to PERMANENTLY DEFORM, WITHOUT FRACTURE, WHEN A TENSILE FORCE is applied. A material with this property can be drawn into a FINE WIRE, for example.
3 of 11
MALLEABILITY
The ability to PERMANENTLY DEFORM, WITHOUT FRACTURE, WHEN A COMPRESSIVE FORCE is applied. A material with this property can be hammered, rolled, forged or extruded. E.G. COINS, ALUMINUM FOIL.
4 of 11
BRITTLENESS
The ABILITY TO FRACTURE, when a force is applied, WITHOUT PLASTIC DEFORMATION. (The opposite of ductility). E.G. BISCUIT, “BREAK GLASS” ALARM.
5 of 11
TOUGHNESS
The ability to RAPIDLY ABSORB THE ENERGY of a DYNAMIC FORCE and PLASTICALLY DEFORM WITHOUT FRACTURE. A combination of strength and plasticity. E.g. SHIP’S HULL, BULLETPROOF VEST.
6 of 11
HARDNESS
The ABILITY TO RESIST WEAR, (abrasion, scratching, indentation or penetration) by another material. E.G. DIAMOND, CRANKSHAFT, CYLINDER LINER
7 of 11
WELDABILITY
The ABILITY TO FUSE WITH A SIMILAR MATERIAL, without impairing its material properties. E.G. MILD STEEL.
8 of 11
CORROSION RESISTANCE
The ability to RESIST OXIDATION BY THE ENVIRONMENT, to resist returning to its natural state. Types of corrosion: ATMOSPHERIC, CHEMICAL, FRETTING, GALVANIC, HIGH TEMPERATURE, MICROBIAL. E.G. TEFLON AND NOBLE METALS
9 of 11
CONDUCTIVITY
The ability to transfer: ELECTRICITY, HEAT NOISE and VIBRATION.
10 of 11
FATIGUE RESISTANCE
A type of resistance. "The tendency of materials to fracture when repeatedly loaded and unloaded with a force which is considerably less than their breaking load”. Approximately 80% of all machinery failures are caused by FATIGUE.
11 of 11

Other cards in this set

Card 2

Front

The ability to PERMANENTLY DEFORM, WITHOUT FRACTURE when a force is applied which occurs AFTER EXCEEDING THE ELASTIC LIMIT. The deformed material is said to take on a 'PERMANENT SET'. “DUCTILITY” and “MALLEABILITY” are cases of this property

Back

PLASTICITY

Card 3

Front

The ability to PERMANENTLY DEFORM, WITHOUT FRACTURE, WHEN A TENSILE FORCE is applied. A material with this property can be drawn into a FINE WIRE, for example.

Back

Preview of the back of card 3

Card 4

Front

The ability to PERMANENTLY DEFORM, WITHOUT FRACTURE, WHEN A COMPRESSIVE FORCE is applied. A material with this property can be hammered, rolled, forged or extruded. E.G. COINS, ALUMINUM FOIL.

Back

Preview of the back of card 4

Card 5

Front

The ABILITY TO FRACTURE, when a force is applied, WITHOUT PLASTIC DEFORMATION. (The opposite of ductility). E.G. BISCUIT, “BREAK GLASS” ALARM.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Other resources:

See all Other resources »See all Marine Engineering Systems - Materials resources »