in your first job, you are working for a large aerospace firm that is constructing a new regional jetliner. you are assigned the task of performing a process audit on a small heat treat company in pennsylvania that has had several precipitation hardened spars and wing struts rejected for low hardness. during your audit, you observe that they are not properly monitoring the time, as they are holding the parts at the specified temperature for too long. what is the condition of the aluminum alloy called?
