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Topics > Engineering > Materials Science

	Project title	Thermal aging and alloys
	Difficulty Level	High school
	Project page	Click here to view this science project
Description
This science fair project was performed to understand the effect of thermal aging on the hardness of various alloys. The science project experiment was done using a nickel alloy, titanium alloy and steel.
Instructions preview
1. For this science fair project, the independent variable is the aging temperature and type of alloy used – nickel alloy, titanium alloy and steel. The dependent variable is the hardness of the alloys after the thermal aging. This is determined by measuring the hardness using the portable Rockwell hardness tester. The constants (control variables) are the thickness of the alloy plates, the aging period and the room temperature. 2. The 3 types of alloys are washed and cleaned. Any oxidization or impurities are removed using sand paper. 3. The dry box oven is set to a temperature of .....

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