Mechanical properties of niobium

The mechanical properties of niobium are the properties related to the elastic and inelastic response or stress-strain relationship shown by niobium under the action of external force. It is the most concerned index of sheet material stamping and forming processing. The characteristic values that reflect the blanking performance of the niobium sheet include: yield strength, strength limit, hardness, elongation, reduction of area, work hardening index, elastic modulus, etc. It can be summarized into the following types of parameters: ①Plastic parameters, including elongation, reduction of area, Eriksson value, etc.; ②Deformation resistance parameter, which is the ability of a material to restrain plastic deformation from beginning to occur when an external force is applied, the main parameter There are tensile strength, compressive strength and shear strength; ③Yield strength parameter, which is the stress required when the material starts plastic deformation; ④Elastic modulus parameter, which is the characterization of the rigidity of the member, the greater the rigidity, the elasticity of the tensile member The smaller the deformation; ⑤ Hardness parameter, which is a mechanical performance index to measure the hardness of the material.