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Question:

What are the effects of heat treatment on the mechanical properties of metallic materials

What are the effects of heat treatment on the mechanical properties of metallic materials

Answer:

Heat treatment annealing: can reduce the hardness of metal materials, eliminate segregation, uniform composition, improve the casting, rolling, forging and welding process defects; refinement of grain, improve performance, and for the final heat treatment to prepare a good organization;
Hardness, improve processing performance; eliminate internal stress, stabilize the size and reduce the quenching deformation and cracks.
Normalizing: low carbon steel can improve the cutting performance, can refine the grain, improve the comprehensive mechanical properties.
Quenching: improve hardness, wear resistance, improve flexibility, improve strength and toughness;
Tempering: Reduce and eliminate the internal stress of steel after quenching. Stable organization and size.

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