R-curve behaviour of friction stir welds in aluminium-lithium alloy 2195

被引：29

作者：

Kroninger, HR ^{[1
]}

Reynolds, AP ^{[1
]}

机构：

[1] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2002年 / 25卷 / 03期

关键词：

Al-Li alloy; fracture resistance; friction stir welding;

D O I：

10.1046/j.1460-2695.2002.00466.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The fracture resistance of friction stir welds in 2195-T8 is described in this paper. R-curves were produced for several crack planes, parallel to the welding direction and situated at varying distances from the weld centreline. The friction stir weld was also characterized by hardness and tensile testing. Fracture resistance of the friction stir weld is compared to the base metal and to a variable polarity plasma arc weld. Results show that the material in and around the friction stir weld is tougher than the base metal and the variable polarity plasma arc weld. The friction stir weld fracture performance is discussed in the light of the observed hardness and fractographic data presented.

引用

页码：283 / 290

页数：8

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