2018
DOI: 10.5937/zzk1804159p
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Fracture toughness of base and weld metal of aluminum alloy EN AW 7049A T652 FSW joint

Abstract: The paper analyses the impact of the tool geometry on the friction stir welding (FSW) method on fracture toughness values of the base metal (BM) and weld metal (WM) of a butt welded joints of a high strength aluminium alloy. Values of fracture toughness KJIc were obtained using single-edge notched bend (SENB) specimens with fatigue precrack sampled from the BM and TMAZ (thermomechanically affected zone). Single specimen method was used according to ASTM E 1820 and parameters of elastic-plastic fracture mechani… Show more

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Cited by 3 publications
(3 citation statements)
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“…Perović in [ 24 ] gives the results of fracture toughness of the FSW joint, with higher values on the retreating side in accordance with the results of this research. Similar fracture toughness results for joint and base metal of FSWed AA2024-T351 were obtained by Moghadam and Farhangdoost [ 35 ] for the initial crack in the lump zone and the orientation of the cracks along the welding direction.…”
Section: Resultssupporting
confidence: 85%
See 1 more Smart Citation
“…Perović in [ 24 ] gives the results of fracture toughness of the FSW joint, with higher values on the retreating side in accordance with the results of this research. Similar fracture toughness results for joint and base metal of FSWed AA2024-T351 were obtained by Moghadam and Farhangdoost [ 35 ] for the initial crack in the lump zone and the orientation of the cracks along the welding direction.…”
Section: Resultssupporting
confidence: 85%
“…In the paper [ 23 ], Khodir et al provide research on the influence of tool rotation speed (400, 600, 800, 1000, 1250, and 1500 rpm), at a constant welding speed of 50 mm/min on the microstructure, hardness distribution and tensile properties of FSW butt-welded plates with a thickness of 3-mm alloy AA2024-T3. In the paper [ 24 ], Perović et al give the influence of welding speed on the mechanical properties of the welded joint achieved by FSW of Al–Zn–Mg–Cu alloy (EN AW 7049). Tests of the influence of welding parameters (constant tool rotation speed and different welding speed) on tensile properties, hardness profile, impact toughness and fracture mechanics parameters were performed.…”
Section: Introductionmentioning
confidence: 99%
“…This was higher than for the BM and Specimen 1, where it was roughly 1/4. The latter was similar to the relatively brittle AA7049 alloy that was using an instrumented Charpy pendulum impact tester, reported in the work of Perovic et al [37]. The greatest benefit of BTFSW pertained to impact energy, which was considerably higher than tensile performance.…”
Section: Impact Energy Testing Resultssupporting
confidence: 78%