Composition optimization of the Cu-based Cu–Zr–Al alloys

Wang, Q.; Wang, Y.M.; Qiang, Jianbing; Zhang, X.F.; Shek, C.H.; Chen, Dong

doi:10.1016/j.intermet.2004.07.002

Cited by 51 publications

(30 citation statements)

References 11 publications

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“…Despite alloys corresponding to the CuZr system with Cu/Zr ratio of 1.5, such as Cu 50 Zr 43 Al 7 (at. %), exhibit rather high GFA [17], it is also true that their GFA is very composition sensitive, i.e., alloys with similar composition exhibit very different GFA [18]. This can result in alloys of different degrees of amorphicity even for similar composition and therefore could have large effect on the mechanical behaviour [19], which is in agreement with our results obtained using nanoindentation and scratch tests.…”

Section: Accepted Manuscriptsupporting

confidence: 90%

Antimicrobial and wear performance of Cu-Zr-Al metallic glass composites

et al. 2017

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The antimicrobial and wear behaviour of metallic glass composites corresponding to the Cu 50+x (Zr 44 Al 6 ) 50-x system with x=(0, 3 and 6) has been studied. The three compositions consist of crystalline phases embedded in an amorphous matrix and they exhibit crystallinity increase with increasing Cu content, i.e., decrease of the glass-forming ability. The wear resistance also increases with the addition of Cu as indirectly assessed from H/E r and H

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Section: Accepted Manuscriptsupporting

confidence: 90%

Antimicrobial and wear performance of Cu-Zr-Al metallic glass composites

et al. 2017

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“…[9][10][11] Some successful examples have been achieved by applying the e=a-related criteria to predict the optimal multi-component compositions in Zrbased and Cu-based amorphous alloys. [18][19][20] The e=a-variant criterion is embodied in a ternary system by special e=a-variant line, which is defined by linking the third element to a special composition point in a binary subsystem, usually the deep eutectic point or a special atomic cluster composition. For the Mg-Cu-Gd ternary system, the f-shell electrons for Gd will lead to the uncertainty of the e=a ratio.…”

Section: The E=a-related Criterionmentioning

confidence: 99%

Development of Mg Based Amorphous Alloys with Higher Amounts of Rare Earth Elements

et al. 2007

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There have been many alloy systems for the Mg based bulk metallic glasses (BMGs), with the previous optimum composition being Mg 65 Cu 25 Y 10 . In this study, new optimum alloy designs are made based on the theoretical model involving the electron per atom e=a-related criterion and the recent model of optimum composition extension from the binary eutectic-pair criterion. Both models suggest that the optimum Mg based BMGs might possess a composition with a lower amount of Mg element. It follows that a series of Mg based BMGs with 50-65 at% Mg and 10-25 at% rare earth element are prepared. The glass forming ability, thermal characteristics, and mechanical performance are examined and discussed.

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“…However, these BMGs are relatively weak in glass-forming abilities (GFAs) and form only in multi-component alloy systems [6]. It is well known that GFAs are related to many empirical guidelines [1,[7][8][9][10]. Among them, the cluster line approach has been proven effective in locating high GFA compositions in a few well-studied systems such as Zr-, Cu-, RE-(RE = Rare Earth) and Fe-based alloys [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Ni-based Ni-Fe-B-Si-Ta bulk metallic glasses

Zhu

Wang

Zhao

et al. 2010

Sci. China Phys. Mech. Astron.

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The glass-forming ability and properties of Ni-based Ni-Fe-B-Si-Ta bulk metallic glasses are explored in this work. The alloy compositions are determined by using a combination of the cluster line approach, the multi-alloying strategy and the substitutions of similar elements. Bulk metallic glasses with diameters of 3 mm take shape at compositions formulated under the cluster-plus-glue-atom model [M 9 B]B~[(Ni 1−x Fe x ) 7.71 (Si 0.66 Ta 0.34 ) 1.29 B]B 0.94 =(Ni 1−x Fe x ) 70.5 B 17.7 Si 7.8 Ta 4 , x=0.35-0.45, where the bracketed part is the cluster and the unbracketed part is the glue atoms. These alloys exhibit good magnetic properties. The maximum I s is found in the (Ni 0.55 Fe 0.45 ) 70.5 B 17.7 Si 7.8 Ta 4 alloy which reaches 0.51 T, with its H c as low as 8.5 A/m. Interestingly, these alloys display dual glass transitions at (Ni 0.

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Composition optimization of the Cu-based Cu–Zr–Al alloys

Cited by 51 publications

References 11 publications

Antimicrobial and wear performance of Cu-Zr-Al metallic glass composites

Antimicrobial and wear performance of Cu-Zr-Al metallic glass composites

Development of Mg Based Amorphous Alloys with Higher Amounts of Rare Earth Elements

Ni-based Ni-Fe-B-Si-Ta bulk metallic glasses

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