| Autor: |
Costa Midori Yoshikawa Pitanga, Voorwald Herman Jacobus Cornelis, Pigatin Walter Luis, Guimarães Valdir Alves, Cioffi Maria Odila Hilário |
| Jazyk: |
angličtina |
| Rok vydání: |
2006 |
| Předmět: |
|
| Zdroj: |
Materials Research, Vol 9, Iss 1, Pp 107-109 (2006) |
| Druh dokumentu: |
article |
| ISSN: |
1516-1439 |
| Popis: |
The increasingly design requirements for modern engineering applications resulted in the development of new materials with improved mechanical properties. Low density, combined with excellent weight/strength ratio as well as corrosion resistance, make the titanium attractive for application in landing gears. Fatigue control is a fundamental parameter to be considered in the development of mechanical components. The aim of this research is to analyze the fatigue behavior of anodized Ti-6Al-4V alloy and the influence of shot peening pre treatment on the experimental data. Axial fatigue tests (R = 0.1) were performed, and a significant reduction in the fatigue strength of anodized Ti-6Al-4V was observed. The shot peening superficial treatment, which objective is to create a compressive residual stress field in the surface layers, showed efficiency to increase the fatigue life of anodized material. Experimental data were represented by S-N curves. Scanning electron microscopy technique (SEM) was used to observe crack origin sites. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
