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Mechanical properties

Mechanical properties. Tensile test Hardness Toughness Fracture toughness Fatigue test Creep resistance. Tensile test. Yield strength Tensile strength Ductility. Tensile test. Yield strength Tensile strength Ductility. Tensile test. Yield strength Tensile strength Ductility.

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Mechanical properties

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  1. Mechanical properties Tensile test Hardness Toughness Fracture toughness Fatigue test Creep resistance

  2. Tensile test Yield strength Tensile strength Ductility

  3. Tensile test Yield strength Tensile strength Ductility

  4. Tensile test Yield strength Tensile strength Ductility

  5. Tensile test Yield strength Tensile strength Ductility

  6. Tensile test Yield strength Tensile strength Ductility

  7. Yield (ksi) Tensile (ksi) Elongation Steels 30-250 60-250 65-2 % For metals: in general, increase strength, decrease ductility

  8. Yield (ksi) Tensile (ksi) Elongation Steels 30-250 60-250 65-2 % Al alloys 5-80 13-90 45-4 Ni alloys 15-170 50-210 60-5

  9. Yield (ksi) Tensile (ksi) Elongation Steels 30-250 60-250 65-2 % Al alloys 5-80 13-90 45-4 Ni alloys 15-170 50-210 60-5 Ceramics - 20-380 0 Ceramics are..........?

  10. Yield (ksi) Tensile (ksi) Elongation Steels 30-250 60-250 65-2 % Al alloys 5-80 13-90 45-4 Ni alloys 15-170 50-210 60-5 Ceramics - 20-380 0 Brittle does not mean weak

  11. Yield (ksi) Tensile (ksi) Elongation Steels 30-250 60-250 65-2 % Al alloys 5-80 13-90 45-4 Ni alloys 15-170 50-210 60-5 Ceramics - 20-380 0 Thermoplastics - 1-12 5-1000 Thermosetting - 5-25 0

  12. Hardness Resistance to indentation

  13. Hardness Resistance to indentation Greater hardness gives higher hardness nos.

  14. Example - quenched plain carbon steels

  15. Correlation betwn strength & hardness Harder means stronger for metals & alloys

  16. Toughness Resistance to being clobbered

  17. Toughness Resistance to being clobbered Impact test measures energy absorbed upon fracture measure of toughness

  18. Toughness Resistance to being clobbered

  19. Impact test measure impact energy at different temperatures

  20. Impact test measure impact energy at different temperatures

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