Influence of Si on glass forming ability and properties of the bulk amorphous alloy Mg60Cu30Y10

Liu, K. M., Zhou, H. T., Yang, B., Lu, D. P. and Atrens, A. (2010) Influence of Si on glass forming ability and properties of the bulk amorphous alloy Mg60Cu30Y10. Materials Science and Engineering: A, 527 29-30: 7475-7479. doi:10.1016/j.msea.2010.08.030


Author Liu, K. M.
Zhou, H. T.
Yang, B.
Lu, D. P.
Atrens, A.
Title Influence of Si on glass forming ability and properties of the bulk amorphous alloy Mg60Cu30Y10
Formatted title
Influence of Si on glass forming ability and properties of the bulk amorphous alloy Mg60Cu30Y10
Journal name Materials Science and Engineering: A   Check publisher's open access policy
ISSN 0921-5093
1873-4936
Publication date 2010-11-15
Sub-type Article (original research)
DOI 10.1016/j.msea.2010.08.030
Volume 527
Issue 29-30
Start page 7475
End page 7479
Total pages 5
Place of publication Lausanne, Switzerland
Publisher Elsevier S.A.
Collection year 2011
Language eng
Formatted abstract
We studied the influence of partially replacing Cu by Si in the bulk amorphous alloy Mg30Cu30Y10. Glass forming ability (GFA), examined using X-ray diffraction and a differential scanning calorimeter, was increased at 1% Si, but decreased for larger Si concentrations. Nano-indentation measured nano-hardness, elastic modulus and load-displacement curves. The elastic modulus and nano-hardness increased with increasing Si content to a maximum at 2.5%. The load-displacement curves during nano-indentation revealed displacement serrations. These increased with decreasing loading rates, decreased with increasing Si content. The load-displacement curves also indicated that these bulk amorphous alloys exhibited primary creep at room temperature just like other high strength alloys. The creep displacement decreased with increasing Si content. © 2010 Elsevier B.V.
Keyword Mg-based bulk amorphous alloy
Nano-indentation
Glass forming ability
Mechanical properties
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2011 Collection
 
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Created: Sun, 05 Dec 2010, 00:05:01 EST