Mechanical Properties and Press Formability of Mg Alloy Processed by Cross-Roll Rolling
Cross-roll rolling with different rolling routes (unidirectional rolling and reverse rolling) was carried out on a commercial Mg alloy sheets. In the cross-roll rolling, the roll axis was tilted by 7.5 degrees against the transverse direction. As a result of the Erichsen tests at 433 – 493 K, the stretch formability of the reverse cross-rolled specimen was higher than that of the unidirectional cross-rolled specimen. The reverse cross-rolled specimen showed lower average Lankford value compared with the unidirectional cross-rolled specimen. This is likely to be responsible for the enhanced stretch formability of the reverse cross-rolled specimen. The higher stretch formability was attributed to reduction of (0002) texture intensity, which was originated from random grain distribution.
Young Won Chang, Nack J. Kim and Chong Soo Lee
Y. Chino et al., "Mechanical Properties and Press Formability of Mg Alloy Processed by Cross-Roll Rolling", Materials Science Forum, Vols. 561-565, pp. 179-182, 2007