artificial aging

artificial aging

[¦ärd·ə¦fish·əl ′āj·iŋ]
(metallurgy)
The heat treatment of an alloy at moderately elevated temperatures to accelerate precipitation of a component from the supersaturated solid solution.
References in periodicals archive ?
Meschede, Sales, Braccini, Scapim and Schuab (2004) reported that dormancy can be overcome by artificial aging, but the results depend on the physiological quality of the seed lot.
Tensile test bars were T6 heat-treated which comprised solution heat treating at 505[degrees]C/8 h, followed by quenching in warm water at 60[degrees]C, and then artificial aging for 5 h at 155[degrees]C, 180[degrees]C, 200[degrees]C, 220[degrees]C, and 240[degrees]C, followed by air cooling.
For varnished, painted, or otherwise coated wood, it is difficult to compare color results described in the literature because of varying substrate (species), coatings, coating thickness, UV intensity, and the absence/presence of humidity/water with artificial aging or weathering.
The automated heat treating system included a solution furnace with rapid quench transfer capabilities and artificial aging oven.
Since 1996, the chemical/physical department at the laboratories in Ciyitanova Marche has also been conducting in-house artificial aging tests (QUV).
Wilful deception, stylistic mimicry, artificial aging, factious provenances, false signatures--all of these characterise forgery.
14) Moreover, artificial aging methods allow for assessment of the degradation of materials in a short period that would otherwise take months or even years of use in the oral cavity.
Among their topics are the non-Gaussian diffusion of phosphorus and arsenic in silicon with local density diffusivity model, the artificial aging behavior of 6063 alloy studied using Vickers hardness and positron annihilation lifetime techniques, the liquid-phase sintering of tungsten heavy alloys, new experimental proof of phase and structure formation in metallic materials eletrodeposited through a liquid state stage, the variable range hopping model in manganese oxides, and dynamics of trililoxane wetting of hydrophobic surfaces.
For BGAs, the artificial aging process significantly degraded the component substrate, causing warping during assembly, and reduced yield for the most severely aged components.
A study on the effect of hot isostatic pressing (HIP) on the microstructure and tensile properties of A356-T6 cast aluminum alloy cast into a plate and machined to a test bar according to ASTM E8M found the solution treatment was 1,000F (538C) for 5 hours; artificial aging was 320F (160C) for 4 hours.