Effect of Initial Microstructure on Properties of Cryorolled Al 5052 Alloy Subjected to Different Annealing Treatment Temperatures

• Published in: Journal of materials engineering and performance Vol. 27; no. 11; pp. 6206 - 6217
• Main Authors: Anas, N. M., Dhindaw, B. K., Zuhailawati, H., Abdullah, T. K., Anasyida, A. S.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.11.2018
• Subjects: ANNEALING; Characterization and Evaluation of Materials; Chemistry and Materials Science; COMPARATIVE EVALUATIONS; Corrosion and Coatings; CORROSION RESISTANCE; Engineering Design; HARDNESS; MATERIALS SCIENCE; MICROSTRUCTURE; PRESSURE RANGE MEGA PA 100-1000; Quality Control; Reliability; Safety and Risk; STRAINS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TENSILE PROPERTIES; Tribology; Al 5052 alloy; corrosion; strength; annealing; cryorolling
• ISSN: 1059-9495; 1544-1024
• DOI: 10.1007/s11665-018-3645-7

Al 5052 alloy sheets were subjected to different pre-annealing temperatures (150, 200, 250, 300, and 350 °C) prior to cryorolling. The process resulted in Al 5052 alloys with different initial microstructures. The pre-annealed alloy sheets were compared with a cryorolled sample not subjected to pre-annealing. The thicknesses of the alloy samples after cryorolling was reduced by 30%. The pre-annealed cryorolled samples exhibited low crystallite size, and high lattice strain. Among them, the cryorolled sample pre-annealed at 300 °C had the lowest crystallite size, and the highest lattice strain. Changes in initial microstructure of this sample resulted in a significant improvement in its hardness (88 Hv), tensile strength (333 MPa), and corrosion resistance. The sample had the highest corrosion resistance among the cryorolled samples.