That are qualities indicate the specific characteristics of metal, it is properties of the metal. Among some properties of metal, such as- physical, mechanical, chemical, electrical, magnetic, thermal, and sound related properties, the effect of physical and mechanical properties are noticed much. A brief description of physical and mechanical properties of metal is given below-
What are the physical properties of Metals?
Such properties of the metal are natural and that is determined by the formation and bonding of election. In most cases, these properties can be changed by changing the chemical ingredients (in cases of hybrid metal). Among the physical properties, the major is- lusture, size, shape, color, density, specific gravity, finish, porosity, structure etc.
Lusture: The ability to reflect the light of a metal surface is called lusture.
Color: The quality for which a metal represents the color of the metal in normal light, it is the color of that metal.
Density: The mass of every single volume of a metal, it is metal density.
Specific Gravity: The ratio of an object’s weight and the weight of the same amount of water at 4°C temperature is called specific gravity.
Melting Point: The temperature at which a solid object changed into a liquid state is called the melting point.
What are the mechanical properties of metals?
The characteristics of metal that are observed because of applying external force are called mechanical properties. Such as- strength, stress, strain, hardness, brittleness, ductility, malleability etc.
A description of different mechanical properties is given below-
Strength: The ability to resist the force of a substance is called strength.
Load: The external force or forces that work on the substance, its load.
Stress: The internal opposite reaction of the force applied to the single field of an object is called stress.
Strain: The ratio of the total change of an object’s length or volume by applying external force and the change of its primary length or volume, this is the strain.
Ductility: The quality for which a substance can be made longer by stretching and give it a shape of cable, that quality of a substance is called ductility. According to ductility, the metals ate- Gold, Platinum, Silver, Iron, Copper, Aluminum, Nickel, Zinc, Tin and Lead etc.
Brittleness: The quality for which substance get crushed without being slightly distorted by getting thrush, is called brittleness. In the case of metal, brittleness is also called shortness, such as-
- Hot or Red Shortness: The properties, which get brittle in the state of high heat is called metal hot or red shortness.
- Cold Shortness: The properties, which get brittle in a cool state is called cold shortness.
Malleability: The quality for which a substance can be made a very thin foil by beating with a hammer or through hitting is called malleability. According to malleability sequence, the metals are below- Gold, Silver, Aluminum, Copper, Tin, Platinum, Lead, Zinc, Iron and Nickel etc.
Hardness: The quality for which resistance is created on the surface of the substance of exquisite mark, friction, decay or hole, this quality of the substance is called hardness. According to ascending of hardness, the substances are- Talc, Gypsum, Calcite, Fluorite, Apatite, Orthoclase, Quartz, Topaz, Corundum and Diamond etc.
Toughness: The amount of energy an object can absorb or accept until being a failure this is toughness.
Stiffness: The ability to resist attempting deformation by stress is called stiffness.
Plasticity: The quality for which a substance can hold on the distorted state permanently which is created by applying external force even if the applying force is removed, this quality of the metal is called plasticity.
Elasticity: The quality, which can turn a distorted substance into its original state after removing the external force, which is applied to distort the substance, is called elasticity.
Resilience: The ability to accept or storing energy in a single unit of a substance is called resilience.
Endurance: The quality for which the substance can survive after applying stress repeatedly, this quality of a substance, it is endurance.
Creep: The extremely slow and continuous shape changes of a substance that is activated under a stable force at the normal measurement of temperature or rising temperature is called the creep.
Tenacity: The ability to resist metal trying longer or separate it by stretching that is tenacity.
Machinability: The ability to separate one metal part from another easily at the time of cutting with the machine, this is machinability.