Important properties of materials for engineers

 

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  1. Flexibility: The total amount of energy absorbed by a material during an elastic deformation is called ductility. Flexibility is defined by modulus of ductility and modulus of ductility = flexibility / volume, given by mod. Flexibility of = / 2 / 2E
  2. Hardness: A measure of a material’s ability to absorb energy.
  3. Hardness: Hardness can be defined as resistance to penetration. It is measured with the help of depth of indentation various hardness tests.
  4. Creep Resistance: This property refers to machines and facilities operating at high temperatures. When studying boilers and heat devices it is important to study creep resistance.
  5. Conductivity: Thermal conductivity is the amount of heat flowing through a material. It is measured as per unit of time, per unit of cross-sectioned area, per unit of length.
  6. Density: Density, often referred to as pounds per cubic inch or grams per cubic centimeter, etc., represents the mass of the unit per unit volume of the alloy. The density of the alloy will guide you on how your component of a certain size will measure. This is an important factor in applications such as aerospace or automotive where weight is important. Designers always look for low-weight components and look for alloys that are less dense, but then they must consider the strength to weight ratio.
  7. Flexibility: Flexibility is the ability of a material to dissipate in abundance, retaining a new shape when it is stretched without stretch and the load is removed.
  8. shear strength: Shear strength is a consideration in applications such as bolts or beams where the direction, as well as the magnitude of stress, is important. Shear occurs when directional forces cause the internal structure of the metal to split against itself at granular levels.
  9. Wear resistance: Wear resistance is a measure of the strength of a material that rubs the impact of two materials against each other. It can take many forms, including scratching, gouging, galling, adhesion, friction, and others. When the elements are of different hardness, the soft metal may first begin to show the effect, and its control may be part of the design.

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