Year: 2008
Type: article
Abstract: An intrinsic plastic Cu(45)Zr(46)Al(7)Ti(2) bulk metallic glass (BMG) with high strength and superior compressive plastic strain of up to 32.5% was successfully fabricated by copper mold casting. The superior compressive plastic strain was attributed to a large amount of randomly distributed free volume induced by Ti minor alloying, which results in extensive shear band formation, branching, interaction and self-healing of minor cracks. The mechanism of plasticity presented here suggests that the creation of a large amount of free volume in BMGs by minor alloying or other methods might be a promising new way to enhance the plasticity of BMGs.
Source: Physical Review Letters
Authors: L. Y. Chen, Z. D. Fu, G. Q. Zhang, X. P. Hao, Q. K. Jiang, X. D. Wang, Q. P. Cao, H. Franz, Y. G. Liu, H. S. Xie, S. L. Zhang, B. Y. Wang, Y. W. Zeng, J. Z. Jiang
Language: English
Subfield: Metals and Alloys
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1977831714