Paper Title:
Experimental and Analytical Studies of Fatigue Crack Growth in Peened after Skimmed Friction Stir Welded Joint of 2024-T351 Al Alloy
| Periodical | Key Engineering Materials (Volumes 462 - 463) |
|---|---|
| Main Theme | Fracture and Strength of Solids VII |
| Edited by | Ahmad Kamal Ariffin, Shahrum Abdullah, Aidy Ali, Andanastuti Muchtar, Mariyam Jameelah Ghazali and Zainuddin Sajuri |
| Pages | 1212-1217 |
| DOI | 10.4028/www.scientific.net/KEM.462-463.1212 |
| Citation | Amirreza Fahim Golestaneh et al., 2011, Key Engineering Materials, 462-463, 1212 |
| Online since | January, 2011 |
| Authors | Amirreza Fahim Golestaneh, Aidy Ali, Mehdi Bayat |
| Keywords | Crack Growth, Fatigue Life, Friction Stir Welding (FSW), Nicholls Model, Pearson Model |
| Price | US$ 28,- |
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Abstract
The present work studies the crack behavior along the surface of the friction stir welded (FSW) joint of 2024-T351 aluminum alloy. The surface engineering of shot peening and skimming are used to enhance the fracture characteristics of the joint. Then multiple crack initiation is detected within FSW zones by scanning electron microscopy, while plastic replication technique is used to monitor the crack propagation. The variation of residual stress is measured (using hole drilling technique) as well as hardness characteristic (using standard method of Vicker) to study the fatigue life of the FSW by two models of Pearson and Nicholls, incorporating crack closure and stress relaxation.
