Microstructure strengthening mechanisms in an Al-Mg-Si-Sc-Zr equal channel angular pressed aluminium alloy

被引：11

作者：

Cabibbo, Marcello ^{[1
]}

机构：

[1] Univ Politecn Marche, Dipartimento Ingn Meccan & Sci Matemat DIISM, I-60131 Ancona, Italy

来源：

APPLIED SURFACE SCIENCE | 2013年 / 281卷

关键词：

Strengthening mechanisms; Proof stress; TEM; Moire fringe boundary; ECAP; DEFORMATION STRUCTURES; PLASTIC-DEFORMATION; STRAIN; EVOLUTION; TEXTURE; PRECIPITATION; BEHAVIOR; MODEL;

D O I：

10.1016/j.apsusc.2013.01.101

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Microstructure dislocation strengthening mechanisms in severely deformed aluminium strongly depend on the different boundary evolutions. Thereafter, models of proof stress determination should take into account the different nature of the boundaries that form during severe plastic deformation. In the last few decades, Hall-Petch modified relationship and other proof stress modelling were extensively discussed. This paper deals with further insights into the Hansen's and other authors approach to the modelling of aluminium poof stress after equal channel angular pressing. The present model is based on a detailed transmission electron microscopy microstructure characterization of the different strengthening contributions in an age-hardened Al-Mg-Si-Sc-Zr alloy. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：38 / 43

页数：6

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