Please use this identifier to cite or link to this item:
|Title:||Improving glass-forming ability of Mg-Cu-Y via substitutional alloying: Effects of Ag versus Ni|
|Citation:||Ma, H., Shi, L.-L., Xu, J., Li, Y., Ma, E. (2006). Improving glass-forming ability of Mg-Cu-Y via substitutional alloying: Effects of Ag versus Ni. Journal of Materials Research 21 (9) : 2204-2214. ScholarBank@NUS Repository.|
|Abstract:||Based on the best bulk metallic glass (BMG) forming alloy in the Mg-Cu-Y ternary system, we introduced Ag (or Ni) to partially substitute for Cu to improve the glass-forming ability (GFA The objective of this paper is twofold. First, we illustrate in detail a recently developed search strategy, which was proposed but only briefly outlined in our previous publication [H. Ma, L.L. Shi, J. Xu, Y. Li, and E. Ma: Discovering inch-diameter metallic glasses in three-dimensional composition space. Appl. Phys. Lett. 87, 181915 (2005)]. The protocol to navigate in three-dimensional composition space to land large BMGs is spelled out step-by-step using the pseudo-ternary Mg-(Cu,Ag)-Y as the model system. Second, our ability to locate the best BMG former in the composition tetrahedron allows us to systematically examine, and conclude on, the effects of a given alloying element. The large improvement in glass-forming ability in the Mg-(Cu,Ag)-Y system relative to the based ternary will be contrasted with the reduced glass-forming ability in the Mg-(Cu,Ni)-Y pseudo ternary system. It is demonstrated that the improvement of glass-forming ability requires judicious choice of substitutional alloying elements and concentrations, rather than simple additions of multiple elements assuming the "confusion principle." © 2006 Materials Research Society.|
|Source Title:||Journal of Materials Research|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 27, 2018
WEB OF SCIENCETM
checked on Dec 19, 2018
checked on Feb 1, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.