1. Subsea R&D Center, Isfahan Univ. of Technology, 8415683111 Isfahan, Iran (corresponding author).
2. Metallurgy Dept. of Metallurgical and Materials Engineering, Istanbul Technical Univ., 34469 Istanbul, Turkey.
3. Dept. of Chemistry, Materials and Chemical Engineering “G. Natta,” Politecnico di Milano, via Mancinelli, 7, 20131 Milan, Italy.