Standard Practice for Evaluating Intergranular Corrosion Resistance of Heat Treatable Aluminum Alloys by Immersion in Sodium Chloride + Hydrogen Peroxide Solution

Importancia y uso:

4.1 This practice is especially useful for evaluating the adequacy of quenching when performed on material in the as-quenched condition. The practice may also be used to study the effect of subsequent thermal processes (for example, paint or bonding cures) or of actual precipitation treatments on the inherent type of corrosion. Intergranular corrosion resistance of heat treatable aluminum alloys is often directly related to the quenching conditions applied after solution heat treatment and to the subsequent aging treatment.4

4.2 This practice is not well suited for non-heat treatable work hardening aluminum alloys, such as the 1XXX, 3XXX, and 5XXX series (see Test Method G67).

4.3 This practice does not deal with the interpretation of resulting intergranular corrosion. The significance of the extent and depth of any intergranular corrosion resulting from this test is to be agreed upon between producer and user.

Subcomité:

G01.05

Referida por:

B0917_B0917M-12R20, G0031-21

Volúmen:

03.02

Número ICS:

77.120.10 (Aluminium and aluminium alloys)

Palabras clave:

2XXX aluminum alloys; 6XXX aluminum alloys; 7XXX aluminum alloys; heat treatable aluminum alloys; intergranular corrosion; intercrystalline corrosion;