Microstructural mechanical properties and yield point effects in Mo alloys

被引：27

作者：

Göken, M

Sakidja, R

Nix, WD

Perepezko, JH

机构：

[1] Univ Saarland, Dept Mat Sci, D-66041 Saarbrucken, Germany

[2] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 319卷

关键词：

Mo5SiB2; nanoindentation; atomic force microscopy; hardness; yield-point;

D O I：

10.1016/S0921-5093(01)01086-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanical properties of two phase Mo-Si-B alloys were analyzed with nanoindentation techniques and atomic force microscopy. A nanoindenting atomic force microscope allows local determinations of hardness and modulus of the T2 phase and Mo(ss) phase. The T2 phase and Mo(ss) phase in these alloys show a hardness of 21 and 8.5 GPa. respectively. The modulus of the T2 phase is nearly 10%. higher than that for the Mo(ss) phase. Large pop-ins are found during indenting in the T2 phase but not in the Mo(ss) phase which has a higher surface roughness. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：902 / 908

页数：7

共 11 条

[1] Non-linear deformation mechanisms during nanoindentation [J].