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Tensile test Yield strength Tensile strength Ductility Yield strength Tensile strength Ductility
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Mechanical properties
Tensile testHardnessToughness Fracture toughnessFatigue testCreep resistance
Tensile test
Yield strengthTensile strengthDuctility
Tensile test
Yield strengthTensile strengthDuctility
QuickTime™ and aCinepak decompressor
are needed to see this picture.
Tensile test
Yield strengthTensile strengthDuctility
QuickTime™ and aCinepak decompressor
are needed to see this picture.
Tensile test
Yield strengthTensile strengthDuctility
Tensile test
Yield strengthTensile strengthDuctility
Yield (ksi) Tensile (ksi) Elongation
Steels 30-250 60-250 65-2 %
For metals:
in general, increase strength, decrease ductility
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
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..........?
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
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
Hardness
Resistance to indentation
Hardness
Resistance to indentation
Greater hardnessgives higherhardness nos.
Example - quenched plain carbon steels
Correlation betwn strength & hardnessHarder means stronger for metals &
alloys
Toughness
Resistance to being clobbered
Toughness
Resistance to being clobbered
Impact test measures energy absorbed upon fracture
measure of toughness
Toughness
Resistance to being clobbered
QuickTime™ and aCinepak decompressor
are needed to see this picture.
Impact test
measure impact energy at differenttemperatures
Impact test
measure impact energy at differenttemperatures
