Реферат: Механические свойства элементов Периодической системы Менделеева

Abrasive Hardness 140000

Modulus of Elasticity 700–1200 GPa

Compressive Yield Strength 8680–16530 MPa

Poisson's Ratio 0,1–0,29

Fracture Toughness 3,4 MPa-mЅ

Sodium

Hardness, Vickers 0,1

Tensile Strength, Ultimate Max 10 MPa

Magnesium (Annealed Sheet)

Hardness, Brinell 40 500 kg load/10 mm ball

Tensile Strength, Ultimate 160–196 MPa

Tensile Strength, Yield 90–105 MPa

Elongation at Break 3–15%

Modulus of Elasticity 44 GPa

Compressive Yield Strength 69–83 MPa

Poisson's Ratio 0,35

Shear Modulus 19 GPa Calculated

Coefficient of Friction 0,36 versus magnesium at 20°C

Magnesium (Hard-Rolled Sheet)

Hardness, Brinell 46 500 kg load/10 mm ball

Tensile Strength, Ultimate 180–220 MPa

Tensile Strength, Yield 115–140 MPa

Elongation at Break 2–10%

Compressive Yield Strength 105–115 MPa

Magnesium (Extruded)

Hardness, Brinell 35 500 kg load/10 mm ball

Tensile Strength, Ultimate 165–205 MPa

Tensile Strength, Yield 69–105 MPa

Elongation at Break 5–8%

Compressive Yield Strength 34–55 MPa

Magnesium (Sand Cast)

Hardness, Brinell 30 500 kg load/10 mm ball

Tensile Strength, Ultimate 90 MPa

Tensile Strength, Yield 21 MPa