Precipitation Hardening in Maraging Steels -On the Martensitic Ternary Iron Alloys

High-Alloy Ferritic Steels: Martensitic Stainless Steels, Precipitation Hardening (code 1810)

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Precipitation Hardening of Metal Alloys

Precipitation hardening, or age hardening, provides one of the most widely used mechanisms for the strengthening of metal alloys. The fundamental understanding and basis for this technique was established in early work at the U. S. Bureau of Standards on an alloy known as Duralumin [1,2]. Duralumin is an aluminum alloy containing copper and magnesium with small amounts of iron and silicon. In a...

Precipitation hardening in dilute Al–Zr alloys

The aim of this study was to investigate the effect of solute content (hipoperitectic Al–0.22 wt.%Zr and hiperperitectic Al–0.32 wt.%Zr) on the precipitation hardening and microstructural evolution of dilute Al–Zr alloys isothermally aged. The materials were conventionally cast in a muffle furnace, solidified in a water-cooled Cu mold and subsequently heat-treated at the temperature of 650 K (3...

Precipitation Hardening of Al–Si–Mg Alloys

Advances in theory: Martensite by design

The depth of scientific understanding of martensitic transformations provides a strong foundation for the predictive design of materials exploiting artensitic phenomena. Recent theoretical advances supporting this capability include twoand three-dimensional applications of Landau–Ginzburg heory to martensitic nucleation, and important refinements of multiscale kinetic theory. Accurate control o...