Role of Tool Shoulder Diameter in Friction Stir Welding: An Analysis of the Temperature and Plastic Deformation of AA 2014 Aluminium Alloy

被引：30
|
作者：
Ramanjaneyulu, K. [1 ]
Reddy, G. Madhusudhan [2 ]
Rao, A. Venugopal [2 ]
机构：
[1] Mahatma Gandhi Inst Technol, Hyderabad, Andhra Pradesh, India
[2] Def Met Res Lab, Hyderabad 500258, Andhra Pradesh, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2014年 / 67卷 / 05期
关键词：
Friction stir welding; Aluminium alloy; Tool shoulder diameter; Zener-Hollomon parameter; Temperature; Strain-rate; MATERIAL FLOW; PIN PROFILE; MECHANICAL-PROPERTIES; JOINTS; GEOMETRY; STRENGTH; ZONE; MICROSTRUCTURE; VISUALIZATION; BEHAVIOR;
D O I：
10.1007/s12666-014-0401-z
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of tool shoulder diameter and its rotational speed on the high temperature plastic deformation of the material during friction stir welding of AA 2014 aluminum alloy is investigated, using the principles of hot working. The soundness of weld and defect formation are analyzed using the Zener-Hollomon parameter 'Z' to describe the high temperature plastic deformation behaviour of material, under the simultaneous influence of temperature and strain-rate. The observed hot deformation behaviour is correlated with the deformation processing map for the first time. At a given rotational speed, the volume of shoulder driven flow reduces with increasing shoulder diameter.
引用
收藏
页码：769 / 780
页数：12
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