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The Basics of Ferrous Metallurgy

102 Articles

High Manganese Austenitic Steels: Part Two

This article examines the properties and microstructural characteristics of high manganese Hadfield steel, focusing on the relationship between composition and mechanical performance. The study investigates how heat treatment conditions affect the microstructure, particularly carbide dissolution, which is critical for achieving optimal mechanical properties. Research demonstrates that carbon and manganese content significantly influence yield strength, tensile strength, and ductility.

High Silicon Cast Iron

High silicon cast iron, containing silicon content above 14.5%, represents a significant advancement in corrosion-resistant materials. This article examines the material's chemical composition, microstructural characteristics, and technological properties. The material offers exceptional corrosion resistance comparable to or exceeding that of chromium and nickel-based alloys, while providing substantial cost advantages.

High Speed Steels

High speed steels (HSS) are specialized ferrous-based alloys designed for high-temperature cutting applications. These steels contain significant amounts of alloying elements including chromium, tungsten/molybdenum, vanadium, and cobalt, along with carbon content exceeding 0.60%. This article explores the historical development, composition, metallurgical characteristics, and industrial applications of high speed steels.

High Strength Low Alloy V Steels: Part One

High-strength low-alloy (HSLA) steels, or microalloyed steels, are designed to provide better mechanical properties and/or greater resistance to atmospheric corrosion than conventional carbon steels.
Vanadium contributes to strengthening by forming fine precipitate particles (5 to 100 nm in diameter) of V(CN) in ferrite during cooling after hot rolling.

High Strength Low Alloy V Steels: Part Three

Studying the fracture toughness behavior of high strength low alloy V steels using the charpy v-notch test reveals a series of interesting results.
At a range of temperatures the comparison between V+Nb and V ductile brittle transition was compared demonstrating a clear distinction in material behavior.

High Strength Low Alloy V Steels: Part Two

Studies performed by the US Army Engineering Research and Development Center (ERDC) in Vicksburg, Mississippi have demonstrated that the use of high strength rebar can build structures with increased blast resistance.
In many cases HSLA-V steels can be substituted for low carbon steels with minimal redesign. The manufacturing processes (e.g., forming, welding, etc.) remain essentially the same.