Elastic and Damping Properties of AZ31 Magnesium Alloy Sheet Processed by High-Temperature Rolling

Abstract

Elastic and damping properties of AZ31 magnesium alloy sheet processed by high-temperature rolling were investigated. The specimen rolled at high temperature (798 K) exhibited the significant low basal texture intensity and the wide spread of the basal pole toward the RD and TD, compared with the specimen rolled at 573 K. Young's modulus of the specimen rolled at 798 K had smaller value at all angles than that of the specimen rolled at 573 K. Besides, the specimen rolled at 798 K exhibited slightly higher internal friction compared with the specimen rolled at 573 K over the strain amplitude range investigated. The suppression of the strong basal texture formation in the specimen rolled at 798 K likely contributed to a reduction of Young's modulus and an increase in internal friction, because the breakaway stress, which is closely related to the macro-yield stress, decreases with an increase in the Schmid's factor of basal slip.

Numerical study of the effects of shear deformation and superimposed hydrostatic pressure on the formability of AZ31B sheet at room temperature

“…and Poisson ratio 3 . 0   (Suzuki et al, 2011;Gupta and Sharon, 2011). When elastic deformation was not the interest, high values of the elastic constants were used to eliminate the elastic deformations (Wang et al 2010d;.…”