Chapter 2-3

The permanent elongation of a component under a static load maintained for a period of time

rate at which the tension test is being carried out (m/s)

the extent of plastic deformation that the material undergoes before it fractures

Cracks that grow with every stress cycle and that propagate through the material until a critical crack length is reached. (Cyclic loading)

Resistance to permanent indentation

When workpieces are subject to plastic deformation that is not uniform throughout the part

• function of the specimen's length
• reported in s^-1

tensile strength over strain rate

The area under the true stress-true strain curve up to fracture, or in other words, the amount of energy per unit volume that the material dissipates prior to fracture. 

The maximum engineering stress, after which point necking occurs. 

permanent deformation occurs when yield stress is reached. (0.2% offset)

the rate at which heat flows within and through a material

When a material has the ability to form a protective layer on their surface, which, when scratched, a new oxide will form.