Influence of Annealing on the Properties of Explosively Welded Titanium Grade 1—AW7075 Aluminum Alloy Bimetals

Sahul, Miroslav; Sahul, Martin; Lokaj, J.; Čaplovič, Ľubomír; Nesvadba, Petr

doi:10.1007/s11665-018-3667-1

Cited by 6 publications

(2 citation statements)

References 36 publications

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“…Titanium and aluminum are attractive engineering metals in industrial applications because of their excellent properties, therefore, achieving the joining between two kinds of materials not only can combine their excellent characteristics, reduce the weight of the structure, but also save costs and further expand their application prospects. In view of this, some welding methods such as friction stir welding [1,2], roll-bonding [3], explosive welding [4], ultrasonic welding [5], resistance spot welding [6], laser welding [7] and arc welding-brazing [8,9] were applied to join titanium and aluminum. Previous studies reveal that the brittle intermetallic compounds (IMCs) layer formed at the welding interface seriously impair the mechanical properties of the joint [10,11].…”

Section: Introductionmentioning

confidence: 99%

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

Zhao

Qiu

et al. 2019

Materials

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Ti-Al diffusion couples, prepared by resistance spot welding, were annealed up to 112 h at 823, 848, and 873 K in ambient atmosphere. The interfacial microstructure was observed and analyzed using SEM and TEM. The growth characterization of intermetallic compound formed at the Ti/Al solid state interface was investigated. Only TiAl3 phase was detected in the interfacial zone, and its growth was governed by reaction-controlled mechanism in the previous period and by diffusion-controlled mechanism in the latter period. The activation energies were 198,019 and 122,770 J/mol for reaction-controlled and diffusion-controlled mechanism, respectively.

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Section: Introductionmentioning

confidence: 99%

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

Zhao

Qiu

et al. 2019

Materials

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“…Another study [25] showed that long annealing at a temperature of 903 K for 100 h of Al-Ti-Al in a vacuum causes intermetallic compounds to grow on both surfaces. In [26], the EW of titanium Grade 1 to aluminum alloy AW7075 arranged in a parallel setup was performed. Subsequent annealing at 450, 500, and 550 • C for 20 to 100 h was carried out after explosive welding.…”

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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The Effect of Annealing on the Properties of AW5754 Aluminum Alloy-AZ31B Magnesium Alloy Explosively Welded Bimetals

Sahul

Lokaj

Čaplovič

et al. 2019

J. of Materi Eng and Perform

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Influence of Annealing on the Properties of Explosively Welded Titanium Grade 1—AW7075 Aluminum Alloy Bimetals

Cited by 6 publications

References 36 publications

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

Growth Characterization of Intermetallic Compound at the Ti/Al Solid State Interface

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

The Effect of Annealing on the Properties of AW5754 Aluminum Alloy-AZ31B Magnesium Alloy Explosively Welded Bimetals

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