Microstructure-Property Relations

Question 1

What must be considered when selecting materials for design?

Answer 1

-Mechanical properties
-Raw material cost
-Transportation costs
-Maintenance costs
Aesthetic factors

Question 2

What mechanical properties must be considered when selecting materials for design?

Answer 2

-Material stiffness (Young’s modulus)
-Resistance to plastic deformation (yield strength)
-Ductility

Question 3

Name some physical properties of materials.

Answer 3

-Density
-Mass
-Melting and boiling points
-Electrical and thermal conductivity

Question 4

Name two examples of mechanical property.

Answer 4

Elastic response (stiffness) and plastic flow (yield stress)

Question 5

What determines the ability for a material to resist deformation?

Answer 5

Internal structure

Question 6

For metals and alloys, describe the constitutive relation.

Answer 6

Stress will be a function of strain and material microstructure

Question 7

What experimental methods can be used to determine microstructure characterisation?

Answer 7

-Optical microscopy
-Scanning electron microscopy
-Transmission electron microscopy

Question 8

What experimental methods can be used to determine mechanical characterisation?

Answer 8

-Tensile/compressive test (Uniaxial loading)
-Fatigue test (Cyclic loading)
Creep test (time dependent behaviour)

Question 9

What computational material modelling methods can be used to derive structure-property relations?

Answer 9

-Physics-bases, phenomenological or empirical methods
-Simulate process induced microstructures
-Simulate mechanical properties