Tensile deformation and microstructure of a nanocrystalline Ni-W alloy produced by electrodeposition

被引：78

作者：

Iwasaki, H

Higashi, K

Nieh, TG

机构：

[1] Lawrence Livermore Natl Lab, Chem Mat Sci, Livermore, CA 94551 USA

[2] Himeji Inst Technol, Dept Mat Sci & Engn, Himeji, Hyogo 6712201, Japan

[3] Osaka Prefecture Univ, Dept Met & Mat Sci, Sakai, Osaka 5998531, Japan

来源：

SCRIPTA MATERIALIA | 2004年 / 50卷 / 03期

关键词：

nanocrystalline material; electrodeposition; mechanical property; high resolution TEM; fracture surface;

D O I：

10.1016/j.scriptamat.2003.09.056

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Deformation and fracture characteristics of the electrodeposited nanocrystalline Ni-W alloy with a grain size of 8.1 nm were investigated. Tensile tests were carried out at room temperature with specimen of 25-30 mum in thickness. The fractured surface was examined using SEM and high-resolution TEM was used to study the microstructure of deformed specimens. Based on these observations we propose a deformation mechanism and fracture process for nanocrystalline Ni W during tensile deformation are initiated by grain boundary sliding. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：395 / 399

页数：5

共 14 条

[1]

[Anonymous], MAT SCI ENG A

[2]

*ASM, 1992, ASM HDB ALL PHAS DIA, V3

[3] Nanocrystalline electrodeposited Ni: microstructure and tensile properties [J].