Effect of strain path on recrystallisation kinetics during hot rolling of Al-Mn

Citation
Mp. Black et al., Effect of strain path on recrystallisation kinetics during hot rolling of Al-Mn, MATER SCI T, 17(9), 2001, pp. 1055-1060
Citations number
21
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS SCIENCE AND TECHNOLOGY
ISSN journal
02670836 → ACNP
Volume
17
Issue
9
Year of publication
2001
Pages
1055 - 1060
Database
ISI
SICI code
0267-0836(200109)17:9<1055:EOSPOR>2.0.ZU;2-G
Abstract
Hot rolling of an aluminium - 1% manganese alloy has been carried out. Wedg e shaped specimens were rolled in two pass schedules, of either two forward passes or a forward and a reverse pass to the same overall net strain. Thr ough thickness marker pins were inserted to allow the investigation of plas tic flow during the different rolling schedules. The reversed rolling techn ique allowed the determination of the effect of a strain path change on the recrystallisation kinetics during hot rolling. Following subsequent anneal ing, quantitative metallography indicated that the forward forward specimen s showed faster recrystallisation kinetics than the forward-reverse specime ns, and produced a finer recrystallised grain size following equivalent the rmomechanical treatments differing only in strain path. A through thickness microstructural gradient was found in all materials.