Characterization of β" precipitate phase in a Mg-Dy-Gd-Nd alloy

被引：7

作者：

Li, D. H. ^{[1
]}

Dong, J. ^{[1
]}

Zeng, X. Q. ^{[1
]}

Lu, C. ^{[1
]}

Ding, W. J. ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 20030, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2007年 / 58卷 / 10期

关键词：

magnesium rare earth; electron microscopy; XRD; beta '' precipitate phase; microstructure;

D O I：

10.1016/j.matchar.2006.08.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The morphology and crystal structure of beta '' precipitate phases in a Mg-Dy-Gd-Nd system have been studied using transmission electron microscopy and X-ray diffraction. Three orientation relationships have been observed between beta '' precipitate phases and the a matrix phase with the habit plane parallel to {11 (2) over bar0}alpha. The orientation relationship between the beta '' precipitates and the matrix is [0001](beta '')//[0001](alpha,) [1 (1) over bar 00](beta '')//[1 (1) over bar 00](alpha). The structure of the beta '' phase, with the interspaces between Dy/Gd/Nd atoms filled with magnesium atoms, is completely consistent with that of the matrix. (C) 2006 Elsevier Inc. All rights reserved.

引用

页码：1025 / 1028

页数：4

共 18 条

[1]

AHMED M, 1992, MAGNESIUM ALLOYS AND THEIR APPLICATIONS, P251

[2]

AHMED M, 1993, THESIS U MANCHESTER

[3]

AHMED M, 1992, GERMANU DGM INFORMAT, P301

[4] Hardening precipitation in a Mg-4Y-3RE alloy [J].

Antion, C ;

Donnadieu, P ;

Perrard, F ;

Deschamps, A ;

Tassin, C ;

Pisch, A .

ACTA MATERIALIA, 2003, 51 (18) :5335-5348

[5] Precipitation reactions in magnesium-rare earth alloys containing Yttrium, Gadolinium or Dysprosium [J].

Apps, PJ ;

Karimzadeh, H ;

King, JF ;

Lorimer, GW .

SCRIPTA MATERIALIA, 2003, 48 (08) :1023-1028

[6]

AZARIKHOSROSHAS.R, 2000, MAGNESIUM ALLOYS THE, P711

[7]

Cullity B., 1978, ELEMENTS XRAY DIFFRA

[8]

Hisa M, 1997, PROCEEDINGS OF THE THIRD INTERNATIONAL MAGNESIUM CONFERENCE, P369

[9]

Kamado S, 1997, PROCEEDINGS OF THE THIRD INTERNATIONAL MAGNESIUM CONFERENCE, P327

[10]

KAMADO S, 1998, 1998 C WOLFSB GERM W, P169

← 1 2 →