Young's modulus of nanocrystalline Fe measured by nanoindentation

被引：130
|
作者：
Fougere, GE
Riester, L
Ferber, M
Weertman, JR
Siegel, RW
机构：
[1] NORTHWESTERN UNIV, DEPT MAT SCI & ENGN, EVANSTON, IL 60208 USA
[2] OAK RIDGE NATL LAB, HIGH TEMP MAT LAB, OAK RIDGE, TN 37831 USA
[3] ARGONNE NATL LAB, DIV MAT SCI, ARGONNE, IL 60439 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1995年 / 204卷 / 1-2期
关键词：
Young's modulus; nanoindentation; iron;
D O I：
10.1016/0921-5093(95)09927-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanoindentation techniques were used to measure Young's modulus for nanocrystalline Fe samples produced by inert-gas condensation and warm consolidation. The samples had grain sizes of 4-20 nm and residual porosity of 2-30% calculated relative to conventional Fe. Values of Young's modulus for the nanocrystalline Fe are reduced relative to that of conventional, fully dense Fe. A review of Young's modulus for other nanocrystalline materials showed similar trends. Published results for porous conventional Fe showed similar reductions in Young's modulus for samples with comparable porosity levels. The observed reductions in Young's modulus for both the nanocrystalline and the conventional porous Fe can be described adequately by several theories utilizing spheroidal porosity.
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收藏
页码：1 / 6
页数：6
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