Grain refinement due to grain detachment in electromagnetically stirred AA7020 welds

被引：95

作者：

Mousavi, MG ^{[1
]}

Hermans, MJM ^{[1
]}

Richardson, IM ^{[1
]}

den Ouden, G ^{[1
]}

机构：

[1] Delft Univ Technol, Netherlands Inst Met Res, NL-2628 AL Delft, Netherlands

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2003年 / 8卷 / 04期

关键词：

D O I：

10.1179/136217103225005462

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

For the first time evidence is presented that supports the role of the grain detachment mechanism during grain refinement aluminium welds as a result of stirring. re These grains are localised in the centre of the weld pool and have not been fully melted. The results of energy dispersive spectroscopy analysis of these grains indicate the similarity of their chemical composition to that of the grains in the base metal. This suggests that these grains are the partially melted grains, present at the fusion line, that are brought into the weld pool by the action of stirring.

引用

页码：309 / 312

页数：4

共 13 条

[1]

Brown DC, 1962, WELD J, V41, p241s

[2]

DEVRIES HW, 1998, THESIS TU DELFT NETH

[3]

Dendrite growth morphologies in aluminium alloys [J].

Henry, S ;

Minghetti, T ;

Rappaz, M .

ACTA MATERIALIA, 1998, 46 (18) :6431-6443

[4]

Kou S, 1987, WELDING METALLURGY, P147

[5]

MALINWOSKIBRODN.M, 1990, WELD J, V62, pS52

[6]

Matsuda F., 1978, Trans. of JWRI, V7, P111

[7]

MOUSAVI MG, 2001, P 19 INT C JOIN MAT, P184

[8]

MOUSAVI MG, 1917, P 19 INT C JOIN MAT, P176

[9]

GRAIN-REFINEMENT IN MAGNETICALLY STIRRED GTA WELDS OF ALUMINUM-ALLOYS [J].

PEARCE, BP ;

KERR, HW .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1981, 12 (03) :479-486

[10]

ROBINSON IB, 1966, WELD J, V45, pS433

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