Ion irradiation induced nanocrystal formation in amorphous Zr55Cu30Al10Ni5 alloy

Carter, Jesse; Fu, Engang; Martin, Michael; Xie, Guoqiang; Zhang, X.; Wang, Y. Q.; Wijesundera, D.; Wang, X. M.; Chu, W. K.; McDeavitt, Sean M.; Shao, Lin

doi:10.1016/j.nimb.2009.05.068

Cited by 44 publications

(9 citation statements)

References 38 publications

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“…As the irradiation continues, majority of metastable NiZr 2 precipitates continuously transformed into CuZr 2 phase. Nucleation of precipitates by ion irradiation in the present alloys is inline with the previous studies [14,15].…”

Section: Resultssupporting

confidence: 92%

“…Iqbal et al [14] have studied ion irradiation of Zr 55 Cu 30 Al 10 Ni 5 bulk amorphous alloy and noticed improvement in mechanical properties of the irradiated areas of the alloy. Later on, Carter et al [15] have verified these results on the same alloy using the techniques of X-ray diffraction (XRD) and transmission electron microscopy (TEM). However, Nagata et al [16] did not observe precipitation of crystalline phases after ion irradiation.…”

Section: Introductionmentioning

confidence: 88%

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Surface modification of Zr-based bulk amorphous alloys by using ion irradiation

Iqbal

Qayyum

Akhter

2011

Journal of Alloys and Compounds

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 88%

Surface modification of Zr-based bulk amorphous alloys by using ion irradiation

Iqbal

Qayyum

Akhter

2011

Journal of Alloys and Compounds

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“…Surface treatments, such as the shot peening [23] and laser pulse processing [24,25] of metallic glasses demonstrate that the structural changes on the surface could result in residual stresses on the surface, which could further modify the plastic-deformation ability of metallic glasses [23,24]. Ion irradiation, an alternative method, can also induce structural modification of the surface of metallic glasses [26][27][28][29][30][31][32][33][34][35][36][37]. When metallic glasses are ion-irradiated, the most dominant mechanism involves the inelastic collisions between high-energy ions and solids that can generate certain activated units, such as structural defects and nano-crystallization [27][28][29][30][31][32][33][34][35].…”

Section: і Introductionmentioning

confidence: 99%

Manipulation of free volumes in a metallic glass through Xe-ion irradiation

et al. 2016

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The origin of the deformation in metallic glasses is attributed to rearrangements of atoms in some structurally weak spots behaving as flow units, which are associated with free volumes. In the present study, Xe-ion beam is used to manipulate the free-volume fraction, and influence on the mechanical behavior of a Zr-based metallic glass. The irradiation at low dosages can change the structure by increasing the free volume, and by homogenising the distribution of free volume. The increase in the free-volume fraction is equivalent to the increase in the deformation temperature, thus resulting in the decrease in the yield strength. The analysis of stochastic strain burst size in the metallic glass irradiated at different dosages indicates that the strain burst depends on the yield strength and homogeneity of the glassy phase. The results of this study highlight the fact that the quantitative manipulation of the homogeneity and the amount of free volumes can be achieved through low-dose ion irradiation, which can modify the mechanical behavior of metallic glasses.

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“…Nanocrystalline alloys obtained by annealing of their corresponding amorphous alloy forms have been shown to possess better corrosion resistance than their amorphous and stable crystalline forms [11][12][13][14][15]. Irradiation of amorphous alloys with heavy ions is known to induce nanocrystalline phases [16]. This motivated us to carry out the electrochemical studies on amorphous specimens of the alloy Ti 60 Ni 40 in 1 M HNO 3 aqueous medium both before and after irradiation and compare the results with those obtained in a previous investigation [14] for the nanocrystalline specimen of the same alloy.…”

Section: Introductionmentioning

confidence: 99%