Effect of Crystalline Phase on Dynamic Deformation Properties of Zr-Based BMG Alloys

Abstract:

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Dynamic compressive tests were conducted on Zr-based amorphous alloys and amorphous matrix composite containing dendritic β phases. Dynamic compressive tests were conducted using a compressive Kolsky bar and then the test data were analyzed in relation to microstructure and fracture mode. Under dynamic loading, the maximum shear stress and ductility of the amorphous alloy and composite were considerably lower than those under quasi-static loading because of the decreased resistance to fracture. Deformation under dynamic loading lowered strain and compressive strength because of reduced fracture resistance, and the alloy containing dendritic β phases showed better compressive strength and ductility than the monolithic alloy.

Info:

Periodical:

Materials Science Forum (Volumes 539-543)

Main Theme:

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran

Pages:

5031-5036

DOI:

10.4028/www.scientific.net/MSF.539-543.5031

Citation:

D. G. Lee et al., "Effect of Crystalline Phase on Dynamic Deformation Properties of Zr-Based BMG Alloys", Materials Science Forum, Vols. 539-543, pp. 5031-5036, 2007

Online since:

March 2007

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$35.00

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