Plasticity refers to the ability of metal materials to produce plastic deformation without damage under load.
Hardness is a pointer to measure the hardness and hardness of metallic materials. At present, the most commonly used method of measuring hardness is the pressure entry hardness method. It is pressed into the surface of the metal material under a certain load with a certain geometry, and the hardness value of the material is measured according to the degree of pressure. In fact, many machine parts work under cyclic loading. Under this condition, parts will produce fatigue.
3, impact toughness
The load at large speed acting on the machine is called impact load, and the ability of metal to resist damage under impact load is called impact toughness.
Strength refers to the ability of metal materials to resist damage under static loading. Because of the form of loading, such as tensile, compression, bending and shearing, the strength can also be divided into tensile strength, compressive strength and bending resistance.
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