Huda Mohammed Abdul-Aziz, Nasser Malik Abbas, and Amjad Hussain Jasim. “Artifitial Aging Time Effect on Corrosion Resistance for Friction Stir Welded AA6061 T6”. Diyala Journal of Engineering Sciences, vol. 6, no. 3, Sept. 2013, pp. 83-96, doi:10.24237/djes.2013.06306.