Accession Number : AD0766838

Title :   Stress Corrosion Cracking Susceptibility and Aging Characteristics of Al-Zn-Mg-Ti Alloys.

Descriptive Note : Technical rept.,

Corporate Author : RENSSELAER POLYTECHNIC INST TROY N Y MATERIALS DIV

Personal Author(s) : Chen,C. ; Judd,G.

Report Date : AUG 1973

Pagination or Media Count : 22

Abstract : A comparison of the stress corrosion cracking (SCC) susceptibility of four aluminum-zinc-magnesium alloys was determined as a function of processing and composition variables, particularly aging treatment and titanium additions. The SCC tests were performed employing a four point loaded constant moment apparatus in a 3.5% sodium chloride solution at room temperature. The alloys were studied as part of a microstructure and microcomposition characterization program in order to determine the effect of these variables on the SCC susceptibility and mechanical properties of the Al-Zn-Mg system. (Modified author abstract)

Descriptors :   (*ALUMINUM ALLOYS, *STRESS CORROSION), MAGNESIUM ALLOYS, ZINC ALLOYS, TITANIUM, MICROSTRUCTURE, GRAIN BOUNDARIES, CRACK PROPAGATION, AGE HARDENING, HEAT TREATMENT, ADDITIVES

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE