JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective

This lab course is mainly designed to impart knowledge of the various

testing methods for evaluation of mechanical properties of metals

Course Outcome

Upon successful completion of this course, the student will be able to:

• 1. Operate instruments for measuring hardness and impact strength of ferrous and non- ferrous alloys.
• 2. Determine the Stress vs Strain curve using UTM
• 3. Interpret hardness and strength of the materials.
• 4. Determine the torsion curve using Torsion Testing Machine LIST OF EXPERIMENT:
• 1. Hardness Test: To determine the Brinell Hardness Values of ferrous and non-ferrous samples.
• 2. To determine the Rockwell hardness values of heat treated steels
• 3. To find the microhardness of phases by using micro hardness tester
• 4. Determination of hardness profile across weldments
• 5. Tension Test: - To determine the elastic modulus, ultimate tensile strength, breaking stress, percentage elongation percentage reduction in area of the given specimen. - To determine the strain distribution along the gauge length
• 6. Torsion Test: -To determine the modulus of rigidity of given material
• 7. Impact Testing: - To determine the Charpy and Izod (V & U Groove notch) values of a given material at room temperature. - To establish the ductile - brittle transition temperature of the given material
• 8. Fatigue Test: - To determine the number of cycles to failure of a given material at a given stress