High-strength and high-conductive Cu/Ag multilayer produced by ARB

Ghalandari, L.; Moshksar, M.M.

doi:10.1016/j.jallcom.2010.06.172

Cited by 88 publications

(34 citation statements)

References 32 publications

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“…2, uses an iterative sequence of cleaning, stacking, roll bonding, and cutting to create and refine a lamellar microstructure. While this technique has been applied to several different bimetal systems, [7][8][9][10][11][12] the Cu-Nb system offers the advantages of low solid solubility as well as similar flow stresses for the two phases. These two characteristics result in excellent microstructural stability during ARB processing, allowing nanolaminates with continuous layers and individual layer thicknesses as small as 10 nm to be produced [13,14].…”

Section: Arb Synthesis Methodsmentioning

confidence: 99%

Processing and Deformation Behavior of Bulk Cu–Nb Nanolaminates

Nizolek

Mara

Beyerlein

et al. 2014

Metallogr. Microstruct. Anal.

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Metallic nanolaminates, composed of alternating layers of two dissimilar metals, have attracted significant attention due to both their high strengths and their potential for excellent microstructural stability. While nanolaminates have traditionally been available only in thin-film form, advances in the severe plastic deformation process of accumulative roll bonding (ARB) have enabled the production of 4-mm-thick sheets of copper-niobium nanolaminates containing over 200,000 individual layers (a nominal layer thickness of\20 nm). The ability to produce bulk nanolaminates has greatly expanded the potential applications for these materials and has motivated investigations into formability, deformation behavior, and joining techniques. This paper presents an overview of both the ARB processing technique and recent investigations into the deformation behavior of these novel materials.

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Section: Arb Synthesis Methodsmentioning

confidence: 99%

Processing and Deformation Behavior of Bulk Cu–Nb Nanolaminates

Nizolek

Mara

Beyerlein

et al. 2014

Metallogr. Microstruct. Anal.

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“…As the ARB process uses standard metalworking equipment such as rolling mills, this technique is seen as both an economically viable and industrially scalable processing route for creating ultra-fine grained and nanograined metallic composites [10]. This technique has been applied successfully to create bimetallic composites with a variety of crystal structure combinations such as fcc/fcc [11][12][13], fcc/bcc [14], fcc/hcp [10,[15][16][17][18][19][20] and bcc/hcp [21]. Large, single-pass reductions are often necessary to achieve bonding during ARB between neighboring layers.…”

Section: Introductionmentioning

confidence: 99%

Bulk texture evolution of nanolamellar Zr–Nb composites processed via accumulative roll bonding

et al. 2015

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It was recently demonstrated that bulk two-phase 50/50 Zr-Nb nanolayered composites with 90 nm individual layers can be fabricated from an initial coarse-layered composite with 1 mm layers via the severe plastic deformation process of accumulative roll bonding. During the deformation, the Zr phase retained its hcp crystal structure and the Zr-Nb interface remained sharp. Here we use a combination of neutron diffraction and dislocation-based polycrystal plasticity constitutive modeling to assess the evolution of texture and deformation mechanisms over a four order-ofmagnitude range in layer thickness. The phase textures in the nanocomposite strongly deviate from that of Zr or Nb rolled in monolithic form, becoming highly peaked and intense. The model suggests that texture development in the Nb phase is associated with multiple slip and contributions from both {1 1 2}h1 1 0i slip and {1 1 0}h1 1 0i slip. In the Zr phase the model suggests that the texture develops due to a predominance of prismatic hai and basal hai slip.

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“…Afterwards plastic instabilities in the harder material layers occur earlier than the other and the harder material experiences necking and fracture as the number of ARB cycles increases. This deformation behavior results in homogeneously distributed fragmentation of the hard material in the soft material matrix [5,[7][8][9][12][13][14]. Mechanical properties of the composite were influenced by the necking and rupture of the hard layers.…”

Section: Introductionmentioning

confidence: 99%