| Title | Fracture behaviour of nickel-titanium laser welded joints |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2009 |
| Authors | Maletta, C., Falvo A., Furgiuele F., Barbieri Giuseppe, and Brandizzi M. |
| Journal | Journal of Materials Engineering and Performance |
| Volume | 18 |
| Pagination | 569-574 |
| ISSN | 10599495 |
| Keywords | Alloys, Chemical contamination, Comparative studies, Crack tips, Dogbone, Edge cracks, Experimental investigations, Failure mechanism, Fracture behavior, Fracture behaviour, Fracture mechanics, Fracture resistance, Fracture surfaces, Fracture testing, Hot cracks, Laser beam welding, Lasers, Mechanical engineering, Mechanical tests, Mechanisms, Molten zones, Nd:YAG laser welding, Neodymium lasers, Nickel, Nickel alloys, Nickel titanium, Open air conditions, Scanning electron microscopy, Shape Memory Alloys (SMAs), Shape memory effect, Strength of materials, Stress-strain response, Stresses, Titanium, Welded joints, Welded materials, Welded steel structures, Welding |
| Abstract | In this study, the effects of Nd:YAG laser welding on the fracture behavior of Ni-rich nickel-titanium sheets are analyzed by experimental investigations. The welding was carried out in open air conditions by using a special shielding/clamping system to avoid the chemical contamination of the molten zone and the formation of hot cracks. Mechanical tests of standard dog bone-shaped and single edge crack specimens were carried out to measure the stress-strain response and the fracture resistance of both the base and the welded materials. Furthermore, scanning electron microscopy observations of the fracture surfaces were carried out in order to better understand the failure mechanisms. Finally, systematic comparative studies between base and laser-welded materials were carried out. © 2009 ASM International. |
| Notes | cited By 21 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-67651146409&doi=10.1007%2fs11665-009-9351-8&partnerID=40&md5=0cc43e2ff8cc69a9eea9ca2ecce607ea |
| DOI | 10.1007/s11665-009-9351-8 |
| Citation Key | Maletta2009569 |
