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

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RO
Manufacturing Metallurgy

Roll Bonding and Explosive Welding: Solid-State Clad Plate Production

Technical guide to solid-state cladding processes. Covers roll bonding of Al-steel and Cu-steel laminates, explosive welding physics, clad plate testing, and applications in pressure vessel cladding and transition joints.

OP
Microstructure

Optical Metallography: Sample Preparation, Etching, and Microstructure Interpretation

Complete practical guide to optical metallography — sectioning, mounting, grinding, polishing, etching agents, and interpretation of steel, aluminium, and cast iron microstructures.

HE
Welding Metallurgy

Heat-Affected Zone in Steel Welds: Microstructure, Hardness, and Cold Cracking

Detailed technical guide to the heat-affected zone (HAZ) in steel welds. Covers CGHAZ, FGHAZ, hardness gradients, cold cracking susceptibility, preheat calculation, and NACE limits.

ST
Corrosion Science

Stress Corrosion Cracking: Mechanism, Testing, and Prevention in Engineering Alloys

Comprehensive guide to stress corrosion cracking (SCC) in steels, stainless steels, and aluminium alloys. Covers mechanism, SCC-susceptible systems, testing, and prevention.

CA
Corrosion Science

Cathodic Protection Design for Offshore Steel Structures

Complete design guide for cathodic protection of offshore steel platforms. Covers sacrificial anodes, ICCP, current demand calculation, anode design, and DNV RP-B401.

GA
Corrosion Science

Galvanic Corrosion: The Electrochemical Series and Engineering Prevention

Complete guide to galvanic corrosion — galvanic series in seawater, area ratio effects, practical examples, and engineering strategies to prevent accelerated corrosion in mixed-metal assemblies.

WE
Welding Metallurgy

Welding Austenitic Stainless Steel: Sensitisation, Hot Cracking, and Filler Selection

Technical guide to welding austenitic stainless steels. Covers sensitisation, carbide precipitation, delta ferrite, hot cracking, WRC diagram, and filler metal selection for 304, 316, and 321.

SM
Welding Metallurgy

SMAW, GMAW, FCAW, and SAW: Selecting the Right Welding Process

Comprehensive comparison of SMAW, GMAW, FCAW, and SAW welding processes. Covers deposition rate, positional capability, heat input, metallurgical quality, and process selection criteria.

PR
Welding Metallurgy

Preheat and Interpass Temperature in Structural Steel Welding

Technical guide to preheat and interpass temperature requirements in structural steel welding. Covers CE calculation, hydrogen scale, thickness effects, and practical control methods.

PI
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.