Analysis of creep fracture in Al-Al4C3 composite after ECAP

被引：13

作者：

Dobes, Ferdinand ^{[1
]}

Besterci, Michal ^{[2
]}

Ballokova, Beata ^{[2
]}

Sulleiova, Katarina ^{[2
]}

Dymacek, Petr ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys Met, CS-61662 Brno, Czech Republic

[2] Slovak Acad Sci, Inst Mat Res, Kosice 04353, Slovakia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 532卷

关键词：

Aluminum alloys; Equal channel angular processing; Mechanical alloying; Fracture; SMALL-PUNCH CREEP; DEFORMATION; PLASTICITY; PRINCIPLES; ALLOYS; METALS; TESTS;

D O I：

10.1016/j.msea.2011.10.122

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Creep fracture of a composite based on an aluminum matrix reinforced by 4 vol.% Al4C3 was studied at temperatures of 623 and 723 K by small punch testing with a constant force. The composite was tested in state after equal channel angular pressing (ECAP) by two passes of route C as a final operation. It was found that the time to fracture was inversely proportional to the minimum deflection rate in a similar manner as the corresponding quantities in conventional creep tests. The fractured surfaces of the studied materials had largely intercrystalline character. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：567 / 572

页数：6

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