The precipitation of the Q phase in an AA6111 alloy

被引：68

作者：

Weatherly, GC ^{[1
]}

Perovic, A

Mukhopadhyay, NK

Lloyd, DJ

Perovic, DD

机构：

[1] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4M1, Canada

[2] Univ Toronto, Dept Met & Mat Sci, Toronto, ON M5S 1A4, Canada

[3] Banaras Hindu Univ, Dept Met Engn, Varanasi 221005, Uttar Pradesh, India

[4] Alcan Int Ltd, Kingston Res & Dev Ctr, Kingston, ON K7L 5L9, Canada

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2001年 / 32卷 / 02期

关键词：

D O I：

10.1007/s11661-001-0251-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The precipitation behavior of the quaternary Q phase in an Al 6111 alloy has been studied by analytical electron microscopy. The transformation strain associated with the Q phase has been determined from high resolution electron microscopy and electron diffraction. The habit plane of the Q laths is shown to be fully coherent with the Al matrix. The transformation strain is used to explain the pattern of heterogeneous precipitation of the Q phase at dislocations and grain boundaries. The crystal structure and composition of the Q phase, whether it forms in the matrix or at grain boundaries, appears similar to that formed directly from the melt in a quaternary Al-Cu-Mg-Si alloy.

引用

页码：213 / 218

页数：6

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