Fabrication of Homogeneous Bulk Nanocrystalline Ni-W Alloys by an Electroforming Process


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Many studies have been conducted on mechanical properties in nanocrystalline Ni-W alloys. However, since these results are obtained in the specimens whose thickness is less than 100 μm and whose homogeneity is not strictly controlled, an inherent potential of the nanocrystalline Ni-W alloy may be hidden. Therefore, it is necessary to fabricate the bulk Ni-W alloy with sufficient thickness and homogeneity. In the present study, we develop novel electroforming process and fabricate the homogeneous nanocrystalline Ni-W alloys. The homogeneities of W-concentration in micrometer scale are confirmed by the W-concentration profiles obtained by the linear analyses of the energy dispersed spectroscopy (EDS). The single-phase nanocrystalline bulk Ni-W alloy with the thickness above 2 mm and minimized W-concentration gradient and fluctuation is featured for the first time.



Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee






A. Fujii et al., "Fabrication of Homogeneous Bulk Nanocrystalline Ni-W Alloys by an Electroforming Process", Advanced Materials Research, Vols. 26-28, pp. 691-694, 2007

Online since:

October 2007




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DOI: 10.2320/matertrans.48.996

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