Search
Abstract
This paper summarizes the results of experimental studies in which the aluminum alloy AW7075-T651 was friction stir welded (FSW) using various combinations of process parameters (rotational - R and travel speed - T). Mechanical properties of the test welds were assessed by using static tensile test and Vickers hardness measurement. The temperature of the welded plates was monitored during welding by means of thermocouples placed on both sides of the joint line, 15 mmfrom the weld axis as well as by using thermo camera. The microstructure, chemical composition and phase identification of the welding joints were examined using optical and scanning electronmicroscopy, energy dispersive X-ray spectroscopy and X-ray diffractometry (XRD). Investigations revealed that the temperatures at the weld center can reach values close to 550 °C and raised withR/T ratio increasing. It was found that tensile strength of welded joints is not correlated with R/T ratio and averages about 60% to 80% of tensile strength of a base material AW7075-T651. XRD analysis demonstrated that there is also deformation texture in the nugget (WN) and the thermomechanical affected zone (TMAZ) with strong dependence on process parameters.
Authors (3)
Cite as
Full text
full text is not available in portal
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Published in:
-
Solid State Phenomena
no. 165,
pages 201 - 206,
ISSN: 1012-0394 - Language:
- English
- Publication year:
- 2010
- Bibliographic description:
- Szkodo M., Adamowski J., Sitko A.: Assessment of FSW Welds Made of Aluminum Alloy AW7075-T651.// Solid State Phenomena. -Vol. 165., (2010), s.201-206
- Verified by:
- Gdańsk University of Technology
seen 133 times
Recommended for you
Investigation of Mechanical and Microstructural Properties of Welded Specimens of AA6061-T6 Alloy with Friction Stir Welding and Parallel Friction Stir Welding Methods
- A. Ghiasvand,
- M. M. Yavari,
- J. Tomków
- + 5 authors