Effect of preaging on the precipitation behaviour of AlMgSi1
-
G. Lange
and
S. Gärtner
Abstract
AlMgSi1 alloys show a deteriorated artificial aging behaviour if they are stored at room temperature between solution treatment and artificial aging (“negative room temperature storage effect”). The present work deals with a preaging step – immediately after solution treatment – which reduces this effect. Mechanical tests and electric resistivity measurements demonstrate that preaged samples are stable even for long room-temperature storages, and they have an excellent artificial-aging behaviour. Preaging may be also beneficial if artificial aging is carried out at higher temperatures to reduce aging time. Higher aging times are combined with a loss of strength and ductility, which is less pronounced for preaged samples. TEM investigations demonstrate that preaged samples show finer precipitates than conventionally-aged ones.
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© 2005 Carl Hanser Verlag, München
Articles in the same Issue
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- Notifications/Mitteilungen
- Personal/Personelles
- Press/Presse
- Conferences
Articles in the same Issue
- Frontmatter
- Editorial
- Heinrich Oettel – 65 Jahre
- Articles Basic
- Misorientations and geometrically necessary dislocations in deformed copper crystals: A microstructural analysis of X-ray rocking curves
- Microstructure and lattice defects in highly deformed metals by X-ray diffraction whole powder pattern modelling
- Magnetoplasticity
- Articles Applied
- Finite-element analysis of the hot-pressing consolidation of continuous Al2O3 fibers-reinforced NiAl composites
- Modelling the stress state of a thermal barrier coating system at high temperatures
- Impedance spectroscopy of thermal barrier coatings as non-destructive evaluation tool for failure detection
- Diffraction by image processing and its application in materials science
- On the preferred orientation in Ti1–xAlxN and Ti1–x–yAlxSiyN thin films
- Boron segregation and creep in ultra-fine grained tempered martensite ferritic steels
- Numeric simulation of the α/γ-phase ratio of ferritic-austenitic duplex steels
- Deformation behaviour and microscopic investigations of cyclically loaded railway wheels and tyres
- Similarity considerations on the simulation of turning processes of steels
- Crack-tip residual stresses and crack propagation in cyclically-loaded specimens under different loading modes
- On the effect of oxide scale stability on the internal nitridation process in high-temperature alloys
- Nitriding behaviour of the intermetallic alloy FeAl
- Material-related fundamentals of cutting techniques for GaAs wafer manufacturing
- Determination of RuAl phase boundaries in binary Ru–Al phase diagram at room temperature and 1200 °C
- On the Orowan stress in intermetallic ODS alloys and its superposition with grain size and solid solution hardening
- Effects of particle reinforcement on creep behaviour of AlSi1MgCu
- Effect of preaging on the precipitation behaviour of AlMgSi1
- Corrosion behaviour of hard coatings on Mg substrates
- Phase transformations in creep resistant MgYNdScMn alloy
- Notifications/Mitteilungen
- Personal/Personelles
- Press/Presse
- Conferences
