Chapter 12, Problem 12.41P

Interpretation Introduction

Interpretation:

The given Al-Cu alloy needs to ranked from highest to lowest with respect to maximum yield strength attained by age gardening. Also, longest to shortest time needed at 190 ${}^{\circ }\text{C}$ to get the maximum yield strength.

Concept Introduction:

Aging is defined as an unexpected change of chemical and physical structure of polymerduring its application. Under atmospheric conditions. As far as chemical changes are

concerned they occur during both processing and application. During the process being

carried out the temperature may rise that leads to thermal and oxidation reaction that becomes

themain reason for the change in structure.