Joining of AA1100-16 vol.-%B4C metal matrix composite using laser welding and friction stir welding

被引：11

作者：

Guo, J. ^{[1
,2
]}

Gougeon, P. ^{[2
]}

Nadeau, F. ^{[2
]}

Chen, X. -G. ^{[1
]}

机构：

[1] Univ Quebec Chicoutimi, Saguenay, PQ G7H 2B1, Canada

[2] Natl Res Council Canada, Aluminium Technol Ctr, Saguenay, PQ G7H 8C3, Canada

来源：

CANADIAN METALLURGICAL QUARTERLY | 2012年 / 51卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Laser welding; Friction stir welding; Metal matrix composites; Microstructure; Mechanical properties; Intermetallic phases; MECHANICAL-PROPERTIES; WELDED-JOINTS; MICROSTRUCTURE; TENSILE;

D O I：

10.1179/1879139512Y.0000000003

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

This work investigated the weldability of AA1100-16B(4)C (vol.-%) metal matrix composite using laser welding and friction stir welding (FSW). The microstructure and mechanical properties of joints produced by two welding techniques were compared. For laser welding, a large amount of brittle needle-like phases, together with some residues of B4C particles were observed in the fusion zone of the joint. The use of Ti filler can improve the microstructure and increase the joint efficiency from 63 to 75%. On the other hand, the FSW, being a solid state welding technique, was interesting as it minimised the formation of brittle intermetallic phases. In addition, the breakage of B4C particles and the grain refinement of the matrix were observed in the weld zone. The FSW joints show superior mechanical properties than the laser welded joints. Up to 100% joint efficiency can be achieved by FSW for annealed AA1100-16B(4)C materials.

引用

页码：277 / 283

页数：7

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