High Strength and High Ductility in Electrodeposited Nanocrystalline Ni–W Alloy

Fujita Kazutaka; Taiji Suidu; Tohru Yamasaki

doi:10.4028/www.scientific.net/MSF.654-656.1118

Paper Titles

High B_s FeSiBPCu Nanocrystalline Wide Ribbons Using Industrial Raw Materials
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Effect of Nitridation Magnetic Properties of Nanocrystalline Fe-Co Alloy Powders
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Mechanical and Physical Properties of Nano-Metals
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Tensile Properties of Bulk Nanocrystalline Ni and Ni-W Fabricated by Sulfamate Bath
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High Strength and High Ductility in Electrodeposited Nanocrystalline Ni–W Alloy
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Processing and Excellent Oxidation Resistance of Nanocrystalline Fe-Cr Alloys
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Controlled Growth of 1-D Nanomaterials Base on Electro-Deposited Nanocrystalline Films: A Overview
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Nanocrystalline Phosphors for Lighting and Detection Applications
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Effect of Sol-Gel Synthesis on the Structural and Photoluminescence Properties of Magnetoplumbite-Type Strontium Ferrite
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High Strength and High Ductility in Electrodeposited Nanocrystalline Ni–W Alloy

Abstract:

The tensile specimen of nanocrystalline Ni–W alloys with 50 μm × 20 μm in area and 4 mm in gauge length was made by using an electrodeposit together with ultraviolet light lithographic technique. The composition and grain size were Ni-16.9 at.% W and about 6 nm, respectively. Tensile testing of the alloy was carried out. The nominal tensile strength and Young’s modulus were about 2.7 GPa and 123 GPa, respectively. The elastic strain and plastic strain were about 2 % and 1 %, respectively. The stress-strain curve showed work hardening. The macroscopic fracture part yielded necking and the microscopic fracture surface showed dimple pattern. As mentioned above, this electrodeposited nanocrystalline Ni-W alloy showed high strength, low elastic modulus and high ductility.