Local mechanical properties of explosively welded AA2519-AA1050-Ti6Al4V layered material

Boroński, Dariusz

doi:10.1007/s40194-020-00984-2

Cited by 6 publications

(3 citation statements)

References 55 publications

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“…The micro-specimen tests were performed using the MFS (Micro-Fatigue System) dedicated to static and fatigue tests of micro-objects [ 25 , 26 ]. The load on the specimens in the MFS system is applied using a nano- or a micro-drive.…”

Section: Methodsmentioning

confidence: 99%

The Influence of the Modification of Carbon Nanotubes on the Properties of Copper Matrix Sintered Materials

Piasecki,

Sobkowiak,

Boroński

et al. 2024

Materials

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This paper presents the results of research on the microstructure, mechanical, and tribological properties of Cu/0.5 wt.% MWCNT (multi-walled carbon nanotube) sintered composite materials produced by powder metallurgy. The purpose of this research was to investigate the impact of carbon nanotube modifications on the uniformity of their dispersion and the effectiveness of their bonding with the matrix. The MWCNTs were modified by chemical oxidation. Additionally, a modification of the ingredient mixing method utilizing ultrasonic frequencies was employed. The tests were carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Vickers hardness tests, static compression tests, and wear tests using the pin-on-disc method. Furthermore, mechanical properties and strain distribution analyses of the micro-specimens were conducted using the Micro-Fatigue System (MFS). The implemented modifications had a positive effect on the dispersion of MWCNTs in the copper matrix and on the mechanical and tribological properties of the sinters.

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Section: Methodsmentioning

confidence: 99%

The Influence of the Modification of Carbon Nanotubes on the Properties of Copper Matrix Sintered Materials

Piasecki,

Sobkowiak,

Boroński

et al. 2024

Materials

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“…Micro-specimens were tested using the Micro Fatigue System (MFS) dedicated to static and fatigue testing of micro-objects [34,35]. Specimens in the MFS system are loaded using a nano-or microdrive.…”

Section: Methodsmentioning

confidence: 99%

Mechanical Properties and Microstructure of Dissimilar S355/AA6061-T6 FSW Butt Joints

Ziółkowski,

Boroński,

Skibicki

et al. 2023

Materials

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The aim of this paper is to analyse the mechanical properties of butt joints between S355 steel and 6061-T6 aluminium alloy, as well as their relationship to changes in the structure of the material caused by welding. The effect of the tool offset was analysed in particular. For the analysis, tensile tests were carried out using macro- and mini-specimens taken from S355/AA6061-T6 joints and base materials. In addition, the macro- and microstructure of the joints was determined, the hardness profiles in the joints were analysed, and fractographic analysis of the fractures of the specimens was carried out. Based on the results of the macro- and microstructure examinations, typical friction stir welding (FSW) joint zones were characterised. The microstructure was observed in the interface line of the materials on the root side, the negative effect of which on the quality of the joint was confirmed by digital image correlation (DIC) strain analysis during the monotonic tensile test. The highest average value of su = 141 MPa for the entire joint was obtained for a 0.4 mm tool offset. The highest average value of su = 185 MPa for the selected joint layer was obtained for a 0.3 mm tool offset. Fracturing of the joint in the selected layer for the tool offset values of 0.3 mm and 0.4 mm occurred in the weld nugget zone (WNZ) where the lowest hardness was recorded.

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“…The last factor is especially important for the EW of titanium, because titanium particles burn in the air present in the welding gap, which has a negative effect on the mechanical properties of the weld [29]. Studies [30,31] showed examples of EW of Ti6Al4V to AA2519, with and without an interlayer of AA1050. The results showed that EW is an effective method of producing Ti6Al4V-AA2519 bimetals without defects.…”

Section: Introductionmentioning

confidence: 99%

AlMg6 to Titanium and AlMg6 to Stainless Steel Weld Interface Properties after Explosive Welding

Malakhov

Saikov

Денисов

et al. 2020

Metals

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This paper studies the weld interface microstructure and mechanical properties of AlMg6-stainless steel and AlMg6-titanium bimetals produced using explosive welding. The microhardness (HV), tear strength, and microstructure of the weld seams were evaluated. The interface of the weld zones had a flat profile. No structural disturbances or heterogeneity in the AlMg6-titanium weld interface were observed. On the other hand, the bimetal AlMg6-stainless steel had extensive zones of cast inclusions in the 10–30 µm range. SEM/energy-dispersive X-ray spectroscopy (EDS) analysis showed the presence of a hard and brittle intermetallic compound of Al and FeAl3 (with 770–800 HV). The microhardness of the AlMg6-titanium bimetal grew higher closer to the weld interface and reached 207 HV (for AlMg6) and 340 HV (for titanium). Both bimetals had average tear strength below 100 MPa. However, the tear strength of some specimens reached 186 and 154 MPa for AlMg6-titanium and AlMg6-stainless steel, respectively. It is also worth mentioning that heat treatment at 200 °C for one hour led to a uniform distribution of tear strength along the entire length of the bimetals. The study shows that one of the possible solutions to the problem of the formation of the brittle intermetallic compounds would be the use of intermediate layers of refractory metals.

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Local mechanical properties of explosively welded AA2519-AA1050-Ti6Al4V layered material

Cited by 6 publications

References 55 publications

The Influence of the Modification of Carbon Nanotubes on the Properties of Copper Matrix Sintered Materials

The Influence of the Modification of Carbon Nanotubes on the Properties of Copper Matrix Sintered Materials

Mechanical Properties and Microstructure of Dissimilar S355/AA6061-T6 FSW Butt Joints

AlMg6 to Titanium and AlMg6 to Stainless Steel Weld Interface Properties after Explosive Welding

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