STUDY OF EFFECT OF FRICTION STIR WELDING PARAMETERS ON IMPACT ENERGY OF AA7075-T6
Keywords:Friction stir welding, Welding modes, Microstructure, Hardness, Charpy impact, Impact energy.
The influences of the tool rotation speed (denoted w) and the welding speed (denoted v) on the impact energy at the representative zones in the friction stir welding (FSW) of AA7075-T6 were investigated. Here, the standard V–Notched specimens were applied in which the notches were addressed at the stirred zone (SZ), the heat affected zones (HAZ) in both the advancing side and the retreating side and the mixed zone (MZ). The experimental results showed that, in all cases, the lowest impact energy is located at the stirred zone and that energy seems to be increased from the SZ to the HAZ across the welding. Furthermore, it is also found that the impact energy is decreased when the ratio of rotation speed to welding speed (w/v) is increased. The microstructure, the temperature distribution, and the hardness in and around the welded zone were considered and discussed.
Authors who publish with Vietnam Journal of Science and Technology agree with the following terms:
- The manuscript is not under consideration for publication elsewhere. When a manuscript is accepted for publication, the author agrees to automatic transfer of the copyright to the editorial office.
- The manuscript should not be published elsewhere in any language without the consent of the copyright holders. Authors have the right to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of their work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are encouraged to post their work online (e.g., in institutional repositories or on their websites) prior to or during the submission process, as it can lead to productive exchanges or/and greater number of citation to the to-be-published work (See The Effect of Open Access).