Mechanically induced crystallization of metglas Fe78B13Si9 during cryogenic high energy ball milling

Huang, Bin; Pérez, Rafael Granell; Crawford, P.J.; Sharif, A.A.; Nutt, Steven; Lavernia, Enrique J.

doi:10.1016/0965-9773(95)00261-c

Cited by 46 publications

(14 citation statements)

References 13 publications

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“…The second possibility is powder contamination. The literature on BM contains several examples of impurity-stabilized crystalline phases, which have formed after the formation of the amorphous phase [32,33]. Although minor iron is milled into the powder after milling for 16 h, the iron-stabilized crystalline phases don't appear in Fig.…”

Section: Discussionmentioning

confidence: 98%

Regular Cu-based amorphous alloy powder

Cai

Xiong

Liu

et al. 2010

Journal of Alloys and Compounds

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Section: Discussionmentioning

confidence: 98%

Regular Cu-based amorphous alloy powder

Cai

Xiong

Liu

et al. 2010

Journal of Alloys and Compounds

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“…The MA literature contains several examples of impurity-stabilized crystalline phases, which have formed after the formation of the amorphous phase [11,26,27]. Since the amorphous phase in the present alloy powder has crystallized into all the expected intermetallic phases (in addition to the ␣-Fe phase) on external heat treatment, the amorphous phase can be assumed not to contain any substantial amount of impurities.…”

Section: Possible Reasons For the Primary Crystallization Of The Amormentioning

confidence: 99%

An unusual phase transformation during mechanical alloying of an Fe-based bulk metallic glass composition

Patil

Hong

Suryanarayana

2005

Journal of Alloys and Compounds

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“…This type of crystallization is not thermally induced, as the starting temperature is low, and deformation imposed causes little temperature rise 8,11,12 . This mechanical deformation-driven crystallization is in fact ubiquitous, in polymers 13 , proteins and alloys 14 .…”

Section: Introductionmentioning

confidence: 99%

Stress-driven crystallization via shear-diffusion transformations in a metallic glass at very low temperatures

Mao

et al. 2015

Phys. Rev. B

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At elevated temperatures, glasses crystallize via thermally activated diffusion.However, metallic glasses can also undergo deformation-induced crystallization at very low temperatures. Here we demonstrate the crystallization of Al 50 Fe 50 metallic glasses under cyclic deformation at 50 K using molecular dynamics simulations, and reveal the underlying atomic-scale processes. We demonstrate that stress-driven nonaffine atomic rearrangements, or shear diffusion transformation (SDT) events, lead to successive metabasin-to-metabasin transitions and long-range ordering. We also illustrate that the nucleation and growth of the crystal proceed via collective attachment of ordered clusters, advancing the amorphous/crystal interface in an intermittent manner. The cooperative nature of the step-like crystallization is attributed to the large activation volume of Eshelby transformations which generate as a byproduct non-affine "diffusive" atomic displacements that accumulate over loading cycles. The dual nature of "shear" (affine) and "diffusion" (non-affine) in lowtemperature stress-driven SDT events thus unifies inelasticity with crystallization.

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Mechanically induced crystallization of metglas Fe78B13Si9 during cryogenic high energy ball milling

Cited by 46 publications

References 13 publications

Regular Cu-based amorphous alloy powder

Regular Cu-based amorphous alloy powder

An unusual phase transformation during mechanical alloying of an Fe-based bulk metallic glass composition

Stress-driven crystallization via shear-diffusion transformations in a metallic glass at very low temperatures

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