Effect of the Grain Boundary Microstructure on SCC Resistance of High Strength Al-Zn-Mg Alloy Extruded Materials

• Published in: Archives of metallurgy and materials Vol. 70; no. 2; pp. 883 - 886
• Main Authors: Yoshida, Tomoo, Lee, Seungwon, Tsuchiya, Taiki, Murakami, Satoshi, Matsuda, Kenji
• Format: Journal Article
• Language: English
• Published: Warsaw Polish Academy of Sciences 2025
• Subjects: al-zn-mg alloy; Alloys; Aluminum alloys; Aluminum base alloys; Chemical composition; Corrosion; Extrusion; Grain boundaries; High strength alloys; Investigations; Magnesium; Mechanical properties; Microstructure; Precipitates; Solid solutions; Stress corrosion cracking; Tensile tests; Zinc

It is known while Al-Zn-Mg alloys extruded materials have high strength, those materials are characteristically occurred to Stress Corrosion Cracking (SCC). Our group have systematically controlled Mg and Zn composition and clarified the relationship between strength and precipitates. The purpose of...