Mechanisms of serrated flow in aluminium alloys with precipitates investigated by acoustic emission

被引：72

作者：

Chmelik, F

Pink, E ^{[1
]}

Krol, J

Balik, J

Pesicka, J

Lukac, P

机构：

[1] Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria

[2] Charles Univ, Dept Met Phys, CZ-12116 Prague 2, Czech Republic

[3] Univ Min & Met Leoben, Inst Met Phys, A-8700 Leoben, Austria

[4] Polish Acad Sci, Aleksander Krupkowski Inst Met & Mat Sci, PL-30059 Krakow, Poland

来源：

ACTA MATERIALIA | 1998年 / 46卷 / 12期

关键词：

D O I：

10.1016/S1359-6454(98)00070-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By measuring the acoustic emission, it is possible to distinguish between deformation which is controlled by normal dislocation motion through a crystal lattice, and deformation controlled by the shearing of coherent particles. These results from alloys with different precipitate structures can be correlated with the appearance of serrated flow: when shearing is pronounced, serrated flow is minute. The claim that shearing is directly responsible for serrated flow is not supported by these findings. (C) 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：4435 / 4442

页数：8

共 22 条

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[Anonymous], 1985, E106785 ASTM

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