Isothermal Ageing in the T Range from 0°C to 180°C of a Technical Al‐2.0 at.% Zn‐1.3 at.% Mg Alloy after Direct Quench | Zendy

Gerlach R. | Zendy; Löffler H. | Zendy

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Isothermal Ageing in the T Range from 0°C to 180°C of a Technical Al‐2.0 at.% Zn‐1.3 at.% Mg Alloy after Direct Quench

Author(s) -

Gerlach R.,

Löffler H.

Publication year - 1982

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170170113

Subject(s) - isothermal process , nucleation , decomposition , alloy , impurity , indentation hardness , materials science , atmospheric temperature range , crystallography , phase (matter) , hexagonal crystal system , ageing , analytical chemistry (journal) , metallurgy , thermodynamics , chemistry , microstructure , chromatography , physics , genetics , biology , organic chemistry

The variations of the structure and the mechanical properties had been investigated by means of TEM investigations and determination of the microhardness number in the T a range between 0 °C and 180 °C. The main results are the following: – At the starting period of the isothermal ageing an incubation time, t inc , occurs. t inc plotted versus T a yields two intersecting C curves at about 100 °C. – At T a = 70 °C the only decomposition product are G.P. zones. – At 70 °C

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