1. Department of Manufacturing Engineering College of Technological Studies P.A.A.E.T P.O. Box 42325 Shuwaikh 70654 Kuwait
2. Faculty of Materials and Engineering Warsaw University of Technology Woloska 141 02-507 Warsaw Poland
3. Department of Design and Engineering Faculty of Science and Technology Bournemouth University Poole Dorset BH12 5BB UK
4. Materials Research Group Department of Mechanical Engineering University of Southampton Southampton SO17 1BJ UK