Physical & Chemical Basics
Atomic structure, bonds, crystal lattices, alloying elements, and physical properties — the bottom layer of materials science.
Atomic Structure & Chemical Bonds
Metals behave the way they do because their atoms are bonded in a certain way: the metallic bond makes them conductive, formable, and shiny. If you understand the atomic structure, you understand why alloying works, why steel hardens, and why rust forms. That's the bottom layer of materials science.
Analyse & Artikel →Crystal Lattice & Microstructure
Metals do not solidify chaotically but in regular crystal lattices. Iron changes its lattice when heated — and it is precisely this change that causes hardening, quenching and tempering, and martensite. Knowing the lattice types helps you understand the most important transformations in steel metallurgy.
Analyse & Artikel →Alloying Elements & Their Effects
Steel is iron plus targeted additions—and each alloying element has a clear job. Carbon makes it hardenable, chromium makes it stainless, Nickel makes it tough, manganese binds sulfur, molybdenum protects against pitting. If you know what the elements do, you can read any material designation like an open book.
Analyse & Artikel →Physical Properties of Materials
Every material brings its own physical quirks: heat conduction, expansion, melting point, electrical and magnetic properties. They determine how a metal distorts during welding, how much heat it conducts away, and whether it can be magnetized. Knowing these helps you avoid distortion, arc blow, and weld defects.
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