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In-depth articles on metallurgy, materials science, and metal processing — written for engineers and learners alike.

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Microstructure

The Iron-Carbon Phase Diagram: A Complete Technical Guide

Complete technical guide to the Fe-C phase diagram. Covers all phase regions, eutectoid and eutectic reactions, lever rule, and application to steel and cast iron microstructures.

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Corrosion Science

Pitting Corrosion in Stainless Steels: Mechanisms, Testing, and Alloy Design

In-depth guide to pitting corrosion in stainless steels. Covers pit initiation at MnS inclusions, critical pitting temperature, PREN calculation, and alloy selection for chloride environments.

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Microstructure

Grain Refinement and the Hall-Petch Relationship in Engineering Steels

Complete guide to grain refinement in engineering steels. Covers the Hall-Petch equation, microalloying with Nb/V/Ti, TMCP processing, and the unique benefit of improving both strength and toughness simultaneously.

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Heat Treatment

Case Hardening Processes: Carburising, Nitriding, and Carbonitriding Compared

Compare carburising, nitriding, and carbonitriding case hardening methods. Covers case depth, hardness, process temperatures, steel grades, and applications.

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Heat Treatment

The Complete Guide to Quenching Steel: Cooling Rates, Media, and Microstructure

Comprehensive guide to quenching steel — TTT diagrams, quench media selection (water, oil, polymer), martensite formation, distortion, and industrial best practices.