Precipitation hardening, also called age hardening or particle hardening, is a heat treatment technique used to increase the yield strength of malleable materials, including most structural alloys of aluminium, magnesium, nickel, titanium, and …

Precipitation hardening also called age hardening, is a heat treatment technique used to increase the yield strength of malleable materials, including most structural alloys ofaluminium, magnesium, nickel, titanium, and some stainless steels.

2019年3月1日 · The highest-strength aluminum alloys require a series of high-temperature “bakes” (120° to 200°C) to form a high number density of nanoparticles by solid-state precipitation. We found that a controlled, room-temperature cyclic deformation is sufficient to continuously inject vacancies into the material and to mediate the dynamic ...

2024年4月10日 · Precipitation hardening, also known as particle hardening or age hardening, is a heat treatment method used to increase the yield strength of many different metals, including most structural alloys. The process was originally discovered by Alfred Wilm, who aimed to strengthen aluminium alloys.

2024年7月16日 · Precipitation hardening, a cornerstone of alloy strengthening, finds widespread application in engineering materials. Comprehending the underlying mechanisms and formulating models bear crucial significance for engineering applications.

2023年9月1日 · To achieve superior strengths, EC, and elasticity in precipitation-strengthened Cu alloys, it is imperative to comprehensively review the latest research progress on advanced Cu alloys with HSC, focusing on the control of compositions, microstructures, and …

2024年3月1日 · Based on dislocation theory, a thermally-activated precipitation strengthening model is built by considering the competition between shear and bypass mechanisms. For medium-sized precipitate particles, the thermally-activated shear mechanism dominates the precipitation strengthening, resulting in a plateau region.

Precipitation strengthening with intermetallic compounds is the most effective approach for the enhancement of alloy strength in engineering structural materials, compared with solid-solution strengthening, grain-boundary strengthening, and work hardening [1,2,3].

2023年3月1日 · In this study, the precipitate characteristics and precipitation-strengthening mechanism of solution-treated Mg-13Gd-4Y–2Zn-0.6Zr alloy after the upsetting and extrusion were investigated at different aging treatment temperatures.

As the precipitation continues, precipitate gets coarsen and become brittle which reduces its strength, which is known as coarsening. The hardness will initially increase and then decreases after achieving peak-hardness. Peak hardness will be less at higher ageing temperature (T 1) but peak hardness will take less time than lower temperature (T 2)