Influence of cold rolling and annealing on the microstructure, mechanical properties, and electrical conductivity of an artificial microcomposite Cu-18% Nb alloy

被引：3

作者：

Kuznetsov A.V. ^{[1
]}

Stepanov N.D. ^{[1
]}

Salishchev G.A. ^{[1
]}

Pantsyrnyi V.I. ^{[2
]}

Khlebova N.E. ^{[2
]}

机构：

[1] Laboratory of Bulk Nanostructured Materials, Belgorod State University, Belgorod

[2] Bochvar All-Russia Research Institute for Inorganic Materials, Moscow

来源：

Russian Metallurgy (Metally) | 2010年 / 2010卷 / 11期

关键词：

Electrical conductivity - Filament widths - Microcomposite - Nano-crystalline structures - Pure copper - Retained strength - Strength property - Ultimate tensile strength;

D O I：

10.1134/S0036029510110133

中图分类号：

学科分类号：

摘要：

The influence of cold rolling and subsequent annealing at different temperatures on the micro-structure, strength properties, and electrical conductivity of a microcomposite Cu-18% Nb alloy fabricated by bundling and deformation is studied. A composite billet is rolled up to a total true strain of 3.5 and 5.1. After rolling, a nanocrystalline structure is obtained with an average filament width of 70-100 nm depending on the rolling strain. The ultimate tensile strength of the rolled foils is 867-934 MPa and the electrical conductivity is 19-40% of the pure copper conductivity. It is shown that annealing at 550°C results in an increase in the conductivity from 40 to 60% at a retained strength (microhardness) of the alloy. © 2010 Pleiades Publishing, Ltd.

引用

页码：1072 / 1079

页数：7

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