Description

The document provides an in-depth exploration of the thermal reactions in steel wire metallurgy, focusing on the iron-carbon equilibrium diagram and the structural changes in steel during heating and cooling. It explains key metallurgical processes, including annealing, normalizing, quenching, and tempering, emphasizing how these treatments affect the formation of ferrite, cementite, and pearlite. The text also details the effects of carbon content on steel’s microstructure, differentiating between hypo-eutectoid and hyper-eutectoid steels, and discusses transformations such as the formation of martensite under rapid cooling. Additionally, it explores grain size control, the role of alloying elements, and critical quenching rates, providing insights into optimizing steel’s physical properties for wire production.

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