Details

Autor(en) / Beteiligte

• Yuan, H.
• Li, J.
• Kong, X.Y.
• Yu, C.C.
• Yang, Q.X.
• Liu, W.C.

Titel

Strain hardening and orientation hardening/softening in cold rolled AA 5052 aluminum alloy

Ist Teil von

• Materials letters, 2008-09, Vol.62 (25), p.4085-4087

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2008

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• The tensile properties of cold rolled sheets were measured for the hot band and annealed hot band of AA 5052 aluminum alloy. The variation in yield strength with rolling true strain was used to represent the hardening rate of cold rolled sheets. The Taylor factor ( M̄) of cold rolled sheets in tension along the rolling direction was calculated based on the measured orientation distribution functions. The strain hardening and orientation hardening/softening produced by cold deformation were analyzed. The results show that the contribution to the hardening rate of cold rolled sheets comes largely from the deformed microstructure and partly from the texture change. For the annealed hot band the orientation softening occurs at strains below 0.5, while the orientation hardening occurs at strains over 0.5. For the hot band the d M̄/d ε value is always positive, indicating that orientation softening does not occur.