Formability of a high-strength Al Mg6.8 type alloy sheet
Abstract
Room temperature formability testing was performed on an AlMg6.8 type alloy sheet with a fully recrystallized structure (average grain diameter similar to 18 mu m) and after partial annealing with a retained deformed structure. The yield strengths attained after full recrystallization and after partial annealing, were 175 and 283 MPa respectively. Such an increase in strength is followed by formability degradation, maximized around the plain strain state to either 42%, as obtained using the limiting dome height test (LDH), or 35% after using forming limit curves (FLC). A comparison with known high-strength formable alloys has shown that the tested alloy in the recrystallized condition has a better stretch formability (at the same or even higher yield stress level), while in the unrecrystallized-partially annealed condition it has a lower formability, limiting its application to moderate forming requirements for very high-strength parts.
Source:
Journal of Materials Science, 1998, 33, 4, 1037-1042Publisher:
- Springer, New York
DOI: 10.1023/A:1004328315442
ISSN: 0022-2461
WoS: 000071699300024
Scopus: 2-s2.0-0031999967
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Romhanji, Endre AU - Popović, Miljana AU - Glišić, Dragomir AU - Milenković, V PY - 1998 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/220 AB - Room temperature formability testing was performed on an AlMg6.8 type alloy sheet with a fully recrystallized structure (average grain diameter similar to 18 mu m) and after partial annealing with a retained deformed structure. The yield strengths attained after full recrystallization and after partial annealing, were 175 and 283 MPa respectively. Such an increase in strength is followed by formability degradation, maximized around the plain strain state to either 42%, as obtained using the limiting dome height test (LDH), or 35% after using forming limit curves (FLC). A comparison with known high-strength formable alloys has shown that the tested alloy in the recrystallized condition has a better stretch formability (at the same or even higher yield stress level), while in the unrecrystallized-partially annealed condition it has a lower formability, limiting its application to moderate forming requirements for very high-strength parts. PB - Springer, New York T2 - Journal of Materials Science T1 - Formability of a high-strength Al Mg6.8 type alloy sheet EP - 1042 IS - 4 SP - 1037 VL - 33 DO - 10.1023/A:1004328315442 ER -
@article{ author = "Romhanji, Endre and Popović, Miljana and Glišić, Dragomir and Milenković, V", year = "1998", abstract = "Room temperature formability testing was performed on an AlMg6.8 type alloy sheet with a fully recrystallized structure (average grain diameter similar to 18 mu m) and after partial annealing with a retained deformed structure. The yield strengths attained after full recrystallization and after partial annealing, were 175 and 283 MPa respectively. Such an increase in strength is followed by formability degradation, maximized around the plain strain state to either 42%, as obtained using the limiting dome height test (LDH), or 35% after using forming limit curves (FLC). A comparison with known high-strength formable alloys has shown that the tested alloy in the recrystallized condition has a better stretch formability (at the same or even higher yield stress level), while in the unrecrystallized-partially annealed condition it has a lower formability, limiting its application to moderate forming requirements for very high-strength parts.", publisher = "Springer, New York", journal = "Journal of Materials Science", title = "Formability of a high-strength Al Mg6.8 type alloy sheet", pages = "1042-1037", number = "4", volume = "33", doi = "10.1023/A:1004328315442" }
Romhanji, E., Popović, M., Glišić, D.,& Milenković, V.. (1998). Formability of a high-strength Al Mg6.8 type alloy sheet. in Journal of Materials Science Springer, New York., 33(4), 1037-1042. https://doi.org/10.1023/A:1004328315442
Romhanji E, Popović M, Glišić D, Milenković V. Formability of a high-strength Al Mg6.8 type alloy sheet. in Journal of Materials Science. 1998;33(4):1037-1042. doi:10.1023/A:1004328315442 .
Romhanji, Endre, Popović, Miljana, Glišić, Dragomir, Milenković, V, "Formability of a high-strength Al Mg6.8 type alloy sheet" in Journal of Materials Science, 33, no. 4 (1998):1037-1042, https://doi.org/10.1023/A:1004328315442 . .