The higher the rebound the harder the surface 7 Tensile strength increases with

The higher the rebound the harder the surface 7

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Scleroscope tester uses a diamond tip hammer and is dropped from a fix height. The higher the rebound, the harder the surface. 7. Tensile strength increases with hardness and ductility decreases when hardness increases. 8. Tensile testing The maximum of force (pull) a material can withstand before breaking 9. Determining elastic limits, the yield point, the percentage of area deduction, and the percentage of elongation of material 10. Load, kg/ area, cm^2 11.STEP 1. Turn sample of steel to dimension, place unto two center punch marks exactly two inches apart STEP 2. Mount the material to the machine, jog machine until black needle starts to move STEP 3. Turn the red hand back until bears the black hand STEP 4. Set a pair of dividers to the center punch marks on the sample STEP 5. Start machine and apply load STEP 6. Observe and record the readings9 STEP 7. Continue to pull until in breaks STEP 8. Remove sample piece and place the broken ends together, and clamp in position. STEP 9. Measure distance between center punch marks STEP 10. Measure diameter of the material at the break to determine reduction diameter 12.Elastic limit is done checking the distance the two center punch with the preset dividers, when this increases the limit has been reached.
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  • Fall '16
  • History, Aluminium

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