Study of the nanoscale precipitation in 6056 alloy (AlMgSi) by conventional Transmission Electron Microscopy and TEM in-situ straining experiments

被引：1
|
作者：
Delmas, F [1 ]
Casanove, MJ [1 ]
Couret, A [1 ]
Coujou, A [1 ]
机构：
[1] CNRS, CEMES, F-31055 Toulouse, France
来源：
ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3 | 2002年 / 396-4卷
关键词：
6056 aluminium alloy; hardening precipitation; TEM; in-situ; dislocations; precipitate density;
D O I：
10.4028/www.scientific.net/MSF.396-402.1109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Transmission Electron Microscopy (TEM) in-situ straining and High Resolution Transmission Electron Microscopy (HRTEM) experiments are performed to study the nanoscale precipitation and the overcoming mechanisms of precipitates by moving dislocations in 6056-T6 aluminium alloy. The direct observation of dislocations pinned on precipitates under the effect of the applied stress allows to determine the real distance between precipitates along the dislocation lines. This is one of the most relevant microscopic parameter for modelling precipitation hardening. This parameter is a function of the shape, the dimensions and the density of precipitates.
引用
收藏
页码：1109 / 1114
页数：6
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