By using Al2024 sample, plot the hardness vs. time of aging for each aging temperature using Excel. How does aging temperature affect the time and hardness? What happens to the 190°C (370°F) and 10-minute specimens after one week? Why? If you were going to use 2024 Al in an application at a temperature of 190°C (370°F), what problems could be encountered? Discuss errors in this experiment and their sources.