Damping in some cellular metalic materials due to microplasticity

被引：28

作者：

Golovin, IS

Sinning, HR

Arhipov, IK

Golovin, SA

Bram, M

机构：

[1] Tech Univ Braunschweig, Inst Werkstoffe, D-38106 Braunschweig, Germany

[2] Tula State Univ, Tula 300600, Russia

[3] Inst Werkstoffe & Verfahren Energietechn, D-52425 Julich, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 370卷 / 1-2期

关键词：

internal friction; cellular metallic materials; foams;

D O I：

10.1016/j.msea.2003.08.089

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

The damping capacities of a few porous structures are studied. Damping in porous structures is enhanced by localised stresses in comparison with the corresponding dense materials. A model for mechanical damping in porous materials is suggested for the "microplastic" range of deformation on the basis of statistical mechanics of micro-heterogeneous materials. Two types of heterogeneity are discussed: one-level porosity (direct by sintered powder steels) and two-level porosity (larger pores in carcass with smaller pores). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：531 / 536

页数：6

共 16 条

[1]

Manufacture, characterisation and application of cellular metals and metal foams [J].