Title: Developing empirical relationships for predicting hardness and tensile behavior of friction stir welded pure copper joints using Response Surface Methodology Author names: 1. Amir Mostafapour, 2. Salar Salahi, 3. Vahid Rezazadeh

Affiliations:

1. Faculty of Mechanical Engineering, University of Tabriz, 29 bahman boulevard, Tabriz, Iran

2. Department of Mechanical Engineering, Ozyegin University, Istanbul, Turkey

3. Faculty of Mechanical Engineering, Middle East Technical Universirty, Ankara, Turkey

Corresponding author: Salar Salahi

Present/permanent address: Department of Mechanical Engineering, Ozyegin University, Istanbul, Turkey

E-mail address: salar.salahi@ozu.edu.tr , a-mostafapur@tabrizu.ac.ir, rezazadeh.vahid@metu.edu.tr

Tel/fax numbers: +98 411 4460603 and +90 5372735668