The effect of gauge volume on the tensile properties of nanocrystalline electrodeposits

被引：32

作者：

Wei, H.

Hibbard, G. D.

Palumbo, G.

Erb, U.

机构：

[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada

[2] Integran Technol Inc, Toronto, ON, Canada

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

nanocrystalline materials; electroplating; tension test; plastic deformation;

D O I：

10.1016/j.scriptamat.2007.08.008

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A disconcerting effect of decreasing tensile strength with increasing gauge volume in nanocrystalline electrodeposits has been previously reported; this effect has been attributed to internal flaws. In the present study the electrosynthesis process was scaled-up to produce Ni-6.3 wt.% Fe (13 nm grain size) dog-bone coupons that were up to three orders of magnitude larger than those typically tested. No significant size effect was observed and the ultimate tensile strength was determined by the plastic instability of the coupons. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：996 / 999

页数：4

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