Sliding and deformation of metallic glass: experiments and MD simulations

Fu, Xi-Yong; Rigney, D.A.; Falk, Michael L.

doi:10.1016/s0022-3093(02)01999-3

Cited by 48 publications

(34 citation statements)

References 19 publications

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“…On the contrary, some reports indicated that the wear performances of metallic glasses were significantly inferior to the traditional crystalline alloys [6,7]. Much research has shown that compared with the corresponding crystal alloy, the amorphous alloy has high strength and hardness, but a high friction coefficient and poor wear resistance [7][8][9]. Yavari et al [10] and Gloriant et al [11] have recently shown that samples exhibit the best wear performance when they have a structure consisting of an amorphous matrix with dispersed nanocrystalline particles.…”

Section: Introductionmentioning

confidence: 99%

Effect of Flash Temperature on Tribological Properties of Bulk Metallic Glasses

Kong

Xiong

et al. 2009

Tribol Lett

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The tribological properties of Cu-based and Zr-based bulk metallic glasses (BMGs) sliding against Si 3 N 4 under dry and water lubrication were studied on a pin-on-disc tribometer. The wear mechanisms of bulk metallic glasses were investigated based on the calculated flash temperature. The friction coefficients if fully amorphous alloy are about 0.7, while those of BMGs with nanocrytalline are a little higher. The wear rates of Cu-based BMG (V101) are about one order of magnitude lower than those of Zr-based BMG (Vit1) under dry friction, even two orders of magnitude lower under water lubrication. The wear resistance of bulk metallic glasses was influenced by the flash temperature. The calculated flash temperature (3,337 K) on the friction surface of Zr-based amorphous alloy exceeds its glass transition temperature, even its melting temperature. The high flash temperature leads to glass transition accompanied with viscous flow and material transfer, which is responsible for the poor wear resistance of Zr-based BMGs.

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Section: Introductionmentioning

confidence: 99%

Effect of Flash Temperature on Tribological Properties of Bulk Metallic Glasses

Kong

Xiong

et al. 2009

Tribol Lett

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“…Computational investigations of the shear deformation response of bulk metallic glasses (BMG) [1][2][3][4][5][6] provide unique insights that complement experiments such as uniaxial tension/ compression tests [7][8][9][10] and instrumented indentation [11][12][13][14][15][16]. There are two important factors, which may influence the shear response of BMGs.…”

Section: Introductionmentioning

confidence: 99%

Atomistic simulation of shear localization in Cu–Zr bulk metallic glass

et al. 2006

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“…(G) Desorption energy of a C 4 H 9 OH molecule from a WO 3 surface with ½ML + 1 O oxygen [after the adsorption event shown in (F)]. Figure 5B clearly show an increase in the oxide content on the worn surface compared to the unworn surface, which is typical for metallic sliding contacts and has been reported numerous times (Rigney, 2000;Fu et al, 2003;Scherge et al, 2003;Stoyanov et al, 2013a). Interestingly, the carbon content is noticeably higher in the worn regions compared to the unworn ones.…”

Section: Friction and Wear Experimentsmentioning

confidence: 82%