visit weldfabworld.com Ferrite is the primary microstructure in low carbon steel and is responsible for its softness and ductility. Under a microscope, ferrite appears as light polygonal grains with clear grain boundaries. Its body-centered cubic structure allows plastic deformation, which is why mild steel bends instead of breaking. In welding, cooling rate directly affects ferrite formation and weld toughness. Understanding ferrite helps welders control mechanical properties and improve weld q
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Steel is not just steel. Its strength, hardness, toughness, and ductility all depend on microstructure. From ferrite to martensite, every phase forms based on carbon content and cooling rate. Slow cooling gives soft structures. Rapid quenching creates extreme hardness. Heat treatment is not magic — it’s controlled microstructure engineering. Master the iron-carbon phase diagram and you master steel selection. Whether it’s knives, rails, car bodies, or drill bits, the right microstructure deliver
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