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Mechanical Properties of Metals

Mechanical Properties of Metals. Strength Ductility Hardness Stiffness Toughness Behavior in service : Fatigue Ductile-to-brittle transition. Strength : a standard tensile specimen. Strength : testing machines for tension and bending.

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Mechanical Properties of Metals

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  1. Mechanical Properties of Metals • Strength • Ductility • Hardness • Stiffness • Toughness Behavior in service: • Fatigue • Ductile-to-brittle transition

  2. Strength:a standardtensile specimen

  3. Strength:testing machines for tension and bending

  4. Strength:a stress-strain diagram(I field – elastic deformation,IIfield – plastic deformation,IIIfield – necking)

  5. Strength:geometry of the deformed specimen

  6. Strength:a stress-strain diagram of ductile and brittle metal

  7. Hardness - Rockwell tester - Brinell tester - Vickers tester

  8. Hardness:microhardness indentationof two grains

  9. Toughness:impact pendulum-type testing machine

  10. Toughness:impact test and specimens

  11. Fatigue:fracture surface

  12. Fatigue:reversed stress cycle

  13. Ductile-to-brittle transition

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