Evolution of mechanisms of plastic deformation in porous metals

Abstract

An experimental study was made of the structure of deformed porous iron with a porosity P ranging from 4 to 40% within the range of strains ε up to fracture. Measurements are made of grain-boundary slip and rotations of structural elements and their individual contributions to the total strain as a function of P and ε. It is established that there is a change in the dominant mechanisms of plastic deformation with an increase in porosity, this change being connected with a change in the topological characteristics of the system and corresponding to the transition from intergranular slip to a group of mechanisms that ensures movement of the grains as a whole. The established laws are analyzed on the basis of the concept of structural levels of deformation.

Original language	English
Pages (from-to)	92-96
Number of pages	5
Journal	Russian Physics Journal
Volume	39
Issue number	1
DOIs	https://doi.org/10.1007/BF02069250
Publication status	Published - 1 Jan 1996

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1007/BF02069250

Fingerprint Dive into the research topics of 'Evolution of mechanisms of plastic deformation in porous metals'. Together they form a unique fingerprint.

Cite this

@article{1ccc4569733140549de3d320a5fe3c86,

title = "Evolution of mechanisms of plastic deformation in porous metals",

abstract = "An experimental study was made of the structure of deformed porous iron with a porosity P ranging from 4 to 40% within the range of strains ε up to fracture. Measurements are made of grain-boundary slip and rotations of structural elements and their individual contributions to the total strain as a function of P and ε. It is established that there is a change in the dominant mechanisms of plastic deformation with an increase in porosity, this change being connected with a change in the topological characteristics of the system and corresponding to the transition from intergranular slip to a group of mechanisms that ensures movement of the grains as a whole. The established laws are analyzed on the basis of the concept of structural levels of deformation.",

author = "Panin, {V. E.} and Polyakov, {V. V.} and Syrov, {G. V.} and Fadeev, {A. V.}",

year = "1996",

month = jan,

day = "1",

doi = "10.1007/BF02069250",

language = "English",

volume = "39",

pages = "92--96",

journal = "Russian Physics Journal",

issn = "1064-8887",

publisher = "Consultants Bureau",

number = "1",

}

TY - JOUR

T1 - Evolution of mechanisms of plastic deformation in porous metals

AU - Panin, V. E.

AU - Polyakov, V. V.

AU - Syrov, G. V.

AU - Fadeev, A. V.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - An experimental study was made of the structure of deformed porous iron with a porosity P ranging from 4 to 40% within the range of strains ε up to fracture. Measurements are made of grain-boundary slip and rotations of structural elements and their individual contributions to the total strain as a function of P and ε. It is established that there is a change in the dominant mechanisms of plastic deformation with an increase in porosity, this change being connected with a change in the topological characteristics of the system and corresponding to the transition from intergranular slip to a group of mechanisms that ensures movement of the grains as a whole. The established laws are analyzed on the basis of the concept of structural levels of deformation.

AB - An experimental study was made of the structure of deformed porous iron with a porosity P ranging from 4 to 40% within the range of strains ε up to fracture. Measurements are made of grain-boundary slip and rotations of structural elements and their individual contributions to the total strain as a function of P and ε. It is established that there is a change in the dominant mechanisms of plastic deformation with an increase in porosity, this change being connected with a change in the topological characteristics of the system and corresponding to the transition from intergranular slip to a group of mechanisms that ensures movement of the grains as a whole. The established laws are analyzed on the basis of the concept of structural levels of deformation.

UR - http://www.scopus.com/inward/record.url?scp=53349163675&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=53349163675&partnerID=8YFLogxK

U2 - 10.1007/BF02069250

DO - 10.1007/BF02069250

M3 - Article

AN - SCOPUS:53349163675

VL - 39

SP - 92

EP - 96

JO - Russian Physics Journal

JF - Russian Physics Journal

SN - 1064-8887

IS - 1

ER -