Quantitative analysis of surface effects of plastic deformation

被引：13

作者：

Coupeau, C ^{[1
]}

Grilhé, J ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, UMR 6630, Met Phys Lab,UFR Sci Bat SP2MI Teleport 2, F-86962 Futuroscope, France

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1999年 / 271卷 / 1-2期

关键词：

dislocation; plasticity; slip line; atomic force microscopy;

D O I：

10.1016/S0921-5093(99)00447-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Single crystals of gamma phase nickel based alloy MC2 and of LiF have been studied using an experimental apparatus offering the continuous observation of the slip line development during plastic deformation. Taking advantage of the high resolution of atomic force microscopy, the fine structure of slip lines has been investigated showing drastic differences between the two materials. A statistical analysis of slip line patterns has been carried out to compare deformation mechanisms taking place in the bulk crystals and quantitatively study the surface effects of plastic deformation, with the determination of a few relevant parameters, such as the total number of dislocations emerging at the sample surface, the average dislocation per slip line and the distribution of terrace widths. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：242 / 250

页数：9

共 34 条

[1] CINEMATOGRAPHIC INVESTIGATIONS OF SLIP-LINES ON ALUMINIUM SINGLE CRYSTALS [J].