The effects of second cold reduction on the plastic anisotropy, crystallographic texture and earing behavior of DR-9 Tin-Mill product

Effect of Secondary Cold Reduction Rates on Microstructure, Texture and Earing Behavior of Double Reduction Tinplate

“…However, the raw material used for secondary cold rolling is annealed plate, and the new cold rolling texture is produced on the basis of annealed texture to ensure the mechanical properties and formability of DR tinplate. Earing propensity of a material can be determined by drawing a cup or may be predicted from the crystallographic texture or from the planar anisotropy value (∆r) determined from tension tests [14]. The annealed plate is thicker Materials 2021, 14, 4040 2 of 13 after first cold rolling and its elongation is over 30%, so the thickness anisotropy value of different directions (r 0 , r 45 , r 90 ), the average plastic strain ratio (r m ) and ∆r or earing test are used to evaluate the drawing performance.…”