Effect of an electric field applied during the solution heat treatment of the Al-Mg-Si alloy AA6022 on the subsequent natural aging kinetics

被引：15

作者：

Conrad, Hans ^{[1
]}

Jung, Kang ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2007年 / 42卷 / 04期

关键词：

D O I：

10.1007/s10853-006-0850-9

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The influence of a dc electric field E = 5 kV/cm applied during the solution heat treatment (SHT) of the Al-Mg-Si alloy AA6022 at 475-552 degrees C on the subsequent natural aging kinetics was determined employing resistivity. It was found that the increase in the as-quenched resistivity which resulted from application of the field during SHT was retained throughout the natural aging process. An Avrami-type analysis of the natural aging kinetics gave n (avg.) = 0.3 and k (avg.) = 5 x 10(-2) (min(-1))(0.3)s. These values are in qualitative accord with those determined for the Al-Mg-Si-Cu alloy AA6111.

引用

页码：1299 / 1303

页数：5

共 8 条

[1]

Kinetics of phase change I - General theory [J].

Avrami, M .

JOURNAL OF CHEMICAL PHYSICS, 1939, 7 (12) :1103-1112

[2]

Modeling of precipitation hardening for the naturally aged Al-Mg-Si-Cu alloy AA6111 [J].

Esmaeili, S ;

Lloyd, DJ ;

Poole, WJ .

ACTA MATERIALIA, 2003, 51 (12) :3467-3481

[3]

Johnson WA, 1939, T AM I MIN MET ENG, V135, P416

[4]

External electric field applied during solution heat treatment of the Al-Mg-Si alloy AA6022 [J].

Jung, K ;

Conrad, H .

JOURNAL OF MATERIALS SCIENCE, 2004, 39 (21) :6483-6486

[5]

JUNG K, IN PRESS Z METALLKDE

[6]

Kolmogorov A. N., 1937, Izv. Ross. Akad. Nauk. Seriya Mat., V3, P355

[7]

Pre-precipitate clusters and precipitation processes in Al-Mg-Si alloys [J].

Murayama, M ;

Hono, K .

ACTA MATERIALIA, 1999, 47 (05) :1537-1548

[8]

Zhuang L, 2001, ALUMINUM 2001: PROCEEDINGS OF THE TMS 2001 ANNUAL MEETING ALUMINUM AUTOMOTIVE AND JOINING SYMPOSIA, P77

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