Age-hardening in a commercial Mg-based alloy

被引：4

作者：

Macchi, C. E. ^{[1
,2
]}

Somoza, A. ^{[3
]}

Nie, J. F. ^{[4
]}

机构：

[1] IFIMAT, UNCtr, Pinto 399,B7000GHG, Tandil, Argentina

[2] IFIMAT, UNCtr, CONICET, Tandil, Argentina

[3] IFMAT, UNCtr, CICPBA, Tandil, Argentina

[4] Monash Univ, Sch Phys & Mat Engn, Melbourne 3800, Australia

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4, NO 10 | 2007年 / 4卷 / 10期

关键词：

D O I：

10.1002/pssc.200675831

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Age-hardening phenomena induced by thermal and thermo-mechanical treatments in the commercial Mg-based alloy WE54 were studied by positron annihilation lifetime spectroscopy and Vickers microhardness. To this aim, samples were plastically deformed and subsequently aged at 250 degrees C for times ranging from 0 to 1000 hours. The results obtained are discussed in terms of the role of vacancies in the solute transport and therefore they contribute to the discussion on the vacancy-solute clusters (and/or intermediate precipitates) interactions during the precipitation sequence of the WE54. Besides, we show that cold work previous aging not only accelerates but increases the hardening response of the alloy. (c) 2007 WILEYNCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：3538 / +

页数：2

共 13 条

[1]

Campillo JM, 1998, PHYS STATUS SOLIDI B, V206, P509, DOI 10.1002/(SICI)1521-3951(199804)206:2<509::AID-PSSB509>3.0.CO

[2]

2-J

[3]

Ferragut R, 1999, PHYS STATUS SOLIDI A, V175, pR1, DOI 10.1002/(SICI)1521-396X(199909)175:1<R1::AID-PSSA99991>3.0.CO

[4]

2-3

[5]

GORECKI T, 1983, P INT C DIFF MET ALL, P365

[6]

Hautojarvi P, 1995, P INT SCH PHYS, V125, P491

[7]

KIRKEGAARD NJ, 1989, M270 RNL

[8]

Lorimer G.W., 1986, P LOND C MAGN TECHN, P47

[9] Precipitation in magnesium alloy WE54 during isothermal ageing at 250°C [J].

Nie, JF ;

Muddle, BC .

SCRIPTA MATERIALIA, 1999, 40 (10) :1089-1094

[10] Characterisation of strengthening precipitate phases in a Mg-Y-Nd alloy [J].

Nie, JF ;

Muddle, BC .

ACTA MATERIALIA, 2000, 48 (08) :1691-1703

← 1 2 →