MATERIAL PROPERTIES & BEHAVIOUR
MATERIAL PROPERTIES AND BEHAVIOUR
CREEP
FACTOR AFFECTING CREEP
HEAT TREATMENT
GRAIN SIZE
COMPOSITION
TEMPERATURE
LOAD
THE TENDENCY OF A SOLID MATERIAL TO SLOWLY DEFORM PERMANENTLY UNDER THE INFLUENCE OF STRESSES
DEFINED AS THE SLOW & PROGRESSIVE DEFORMATION OF A MATERIAL WITH TIME AT CONSTANT STRESS
FATIGUE
THREE STAGES OF FATIGUE FAILURE
A SUDDEN FRACTURE OF THE MATERIAL OCCURS WHEN THE REMAINING CROSS-SECTION OF THE MATERIAL IS TOO SMALL TO SUPPORT THE APPLIED LOAD
THE CRACK GRADUALLY PROPAGATES AS THE LOAD CONTINUES TO CYCLE
SMALL CRACK INITIATED AT THE SURFACE AND CAN INCLUDE SCRATCHES,PITS,SHARP CORNERS DUE TO POOR DESIGNING & ETC
CRACKS GENERALLY GROW UNDER REPEATED LOADING TRUCKS PASSING OVER BRIDGES,BICYCLE PEDALS AND GEAR
LOWERING OF STRENGTH OR FAILURE OF A MATERIAL DUE TO REPETITIVE STRESS,WHICH MAY BE ABOVE OR BELOW THE YIELD STRENGTH
FAILURE UNDER CYCLIC STRESS
PHYSICAL &CHEMICAL PROPERTIES
MELTING POINT
DENSITY
CORROSION
MAGNETIC PROPERTIES
FRACTURE MECHANISM
BRITTLE FRACTURE
RAPID RUN OF CRACKS THROUGH A STRESSED MATERIAL
OCCURS WITH LITTLE OR NO PLASTIC DEFORMATION
DUCTILE FRACTURE
OCCURS WITH PLASTIC DEFORMATION
ELECTRICAL PROPERTIES
ELECTRICAL RESISTANCE
ELECTRICAL CONDUCTIVITY
THERMAL PROPERTIES
THERMAL STRESSES
THERMAL CONDUCTIVITY
THE ABILITYOF A MATERIAL TO TRANSPORT HEAT
THERMAL EXPANSION
HEAT CAPACITY
THE ABILITY TO ABSORB HEAT
MECHANICAL PROPERTIES
DUCTILITY
THE ABILITY OF A MATERIAL TO CHANGE SHAPE(DEFORM) USUALLY BY STRETCHING ALONG ITS LENGTH
PLASTICITY
THE ABILITY OF A MATERIAL TO BE CHANGE IN SHAPE PERMANENTLY
ELASTICITY
THE ABILITY OF A MATERIAL TO ABSORB FORCE AND FLEX IN DIFFRENT DIRECTION,RETURNING TO ITS ORIGINAL POSITION
HARDNESS
THE ABILITY OF A MATERIAL TO RESIST SCRACTCHING,WEAR AND TEAR AND INDENTION
BRITTLENESS
DISABILITY OF A MATERIAL TO UNDERGO PLASTIC DEFORMATION
TOUGHNESS
ABILITY OF A MATERIAL'S RESISTANCE TO FRACTURE.
STRENGTH
THE ABILITY OF A MATERIAL TO STAND UP TO FORCES BEING APPLIED WITHOUT IT BENDING,BREAKING SHATTERING OR DEFORMING
