Реферат: Механические свойства элементов Периодической системы Менделеева

Shear Modulus 40 GPa Calculated

Niobium (Columbium) (Annealed Sample)

Hardness, Vickers 80

Tensile Strength, Ultimate 300 MPa

Tensile Strength, Yield 207 MPa

Elongation at Break 30%

Modulus of Elasticity 103 GPa

Poisson's Ratio 0,38

Shear Modulus 37,5 GPa

Niobium (Columbium) (Cold-Worked)

Hardness, Brinell 126 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 45

Hardness, Rockwell B 71

Hardness, Vickers 130

Tensile Strength, Ultimate 600 MPa

Niobium (Columbium) (Wrought)

Hardness, Brinell 152 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Knoop 175

Hardness, Rockwell B 81,7

Hardness, Vickers 160

Tensile Strength, Ultimate 585 MPa

Elongation at Break 5%

Molybdenum (Annealed)

Hardness, Brinell 225 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 60 Converted from Vickers

Hardness, Rockwell B 98 Converted from Vickers

Hardness, Rockwell C 19 Converted from Vickers

Hardness, Vickers 230

Tensile Strength, Ultimate 324 MPa

Tensile Strength, Ultimate 350 MPa Single crystal

Modulus of Elasticity 330 GPa; 275 GPa at 1000°C

Compressive Yield Strength 400 MPa 0,01% Yield

Bulk Modulus 272 GPa