Damage mechanism of Al-12Al4C3

被引：7

作者：

Besterci, M

Ivan, J

Pesek, L

Velgosová, O

Hvizdos, P

机构：

[1] Slovak Acad Sci, UMV SAV, Mat Res Inst, Kosice 04353, Slovakia

[2] Slovak Acad Sci, Inst Mat & Machine Mech, Bratislava 83812, Slovakia

[3] Tech Univ, Fac Met, Kosice 04200, Slovakia

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 06期

关键词：

model of fracture mechanism; in situ tensile test in SEM; Al-Al4C3; materials;

D O I：

10.1016/j.matlet.2003.08.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Deformation of the Al-Al4C3 system was analyzed by "in situ tensile test in SEW and a model of fracture mechanism was suggested. It has been shown that during tensile deformation, the first cracks appeared due to decohesion of the matrix- particle interphase as a result of different physical properties of the matrix and the particles. The stress increase caused crack propagation into the specimen and simultaneously the large damaged particles contributed to the fracture process. The path of final fracture was formed preferably in the loading direction in the rows of Al4C3 and Al2O3 particles. The fracture surface was transcrystalline ductile. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：867 / 870

页数：4

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