Effects of heat treatments on mechanical properties of Fe/Al explosion-welded structural transition joints

Tricarico, Luigi; Spina, R.; Sorgente, Donato; Brandizzi, Marco

doi:10.1016/j.matdes.2008.10.010

Cited by 78 publications

(32 citation statements)

References 5 publications

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“…FeAl 3 is a body-centered cubic (BCC) intermetallic compound with a micro-hardness of 820-980 HV and a density of 3.95g/cm 3 [18]. In comparison, the micro-hardness of steel is usually below 300 HV [19].…”

Section: Methodsmentioning

confidence: 99%

Microstructure and mechanical properties of z-pinned carbon fiber reinforced aluminum alloy composites

et al. 2015

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Section: Methodsmentioning

confidence: 99%

Microstructure and mechanical properties of z-pinned carbon fiber reinforced aluminum alloy composites

et al. 2015

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“…The interface established between steel and aluminum, mainly due to difference in rate of density of two metals, is in wavy form and, under specific conditions, smooth interface can be established as well, and inclination toward creation of state of wavy turmoil and possibility of establishment of eddy in interface of bonding of these two metals is to be developed due to difference density. By the way, due to existence of turmoil/ disturbance in the interface of bonding of these two metals and instable conditions in interface, formation of intermetallic compounds in interface of bonding of these two metals is possible 6 . Due to establishment of stress concentration conditions, these intermetallic compounds in the interface of bonding of two metals may be effective on the strength properties of interface of two alloys.…”

Section: Introductionmentioning

confidence: 99%

Effect of Stand-Off Distance on the Mechanical and Metallurgical Properties of Explosively Bonded 321 Austenitic Stainless Steel - 1230 Aluminum Alloy Tubes

et al. 2017

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In this research, the effect of stand-off distance on the interfacial mechanical and metallurgical properties of explosively bonded 321 austenitic stainless steel to 1230 aluminum alloy tubes was investigated. Interfacial microstructure was evaluated by optical microscopy and scanning electron microscope. Also, Microhardness tests were also carried out. The results show that with increasing of stand-off distance from 1 mm to 2.5 mm, thickness of intermetallic compounds at the interface increased from 3.5 µm to 102.3 µm, and also shape of interface was transited from smooth to wavy. The microhardness of the sample with 1 mm stand-off distance was 650 HV that increased to 927 HV in the sample with 2.5 mm stand-off distance which is related to intermetallic amount. The proportional amount of strength were 103.2 MPa and 214.5 MPa in the above samples respectively.

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“…To eliminate or improve Fe-Al IMCs and achieve a reliable welding of these two alloys, various researches have been conducted on this topic. Some of novel welding methods, such as laser/ arc welding-brazing [9][10][11][12][13], resistance/laser spot welding [14][15][16], friction stir/friction welding [17][18][19][20], and explosion welding [21,22], were explored to suppress the formation of the Fe-Al IMCs, and these new welding methods can also to be used in Al alloys, steels, and dissimilar joining of these two materials [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Interface microstructure and fracture behavior of single/dual-beam laser welded steel-Al dissimilar joint produced with copper interlayer

Chen

Zhai

Huang

et al. 2015

Int J Adv Manuf Technol

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Dissimilar metal welding of Q235 low carbon steel and 5052 aluminum alloy was carried out by a single/dualbeam laser in a steel-on-aluminum overlap configuration with a copper interlayer. The weld appearance, microstructure, and fracture behavior of the joints made by the single/dual-beam laser welding were investigated comparatively. The results showed that dual-beam laser welding, compared with singlebeam laser welding, had better process stability which made better weld appearance and bigger effective joining width which enhanced tensile capacity. With a copper interlayer, a contact reaction zone appeared between the copper interlayer and aluminum matrix, which enlarged effective joining zone. The microstructures of the welding joint welded by a single/ dual-beam laser were composed of the ligulate fusion zone with Fe-Al interface and the contact reaction brazing zone with Al-Cu interface. The Fe-Al interface mainly consisted of α-Al and Al 2 Cu eutectic structure, FeAl, FeAl 2 , and a certain amount of Al-Cu intermetallics, Fe 2 Al 5 and FeAl 3 . The Al-Cu interface mainly consisted of eutectic phase Al 2 Cu and metastable phase of Al-Cu intermetallics. The tensile property was enhanced by a dual-beam laser, and the addition of the copper-foil interlayer might improve the metallurgical reaction of interfacial reaction region and promote the loadcarrying ability of weld joint. An ideal joint with fewer defects could be obtained when the welding speed is 0.9-1.25 m/min of dual-beam laser welding and 1.5-1.75 m/min of singlebeam laser welding.

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Effects of heat treatments on mechanical properties of Fe/Al explosion-welded structural transition joints

Cited by 78 publications

References 5 publications

Microstructure and mechanical properties of z-pinned carbon fiber reinforced aluminum alloy composites

Microstructure and mechanical properties of z-pinned carbon fiber reinforced aluminum alloy composites

Effect of Stand-Off Distance on the Mechanical and Metallurgical Properties of Explosively Bonded 321 Austenitic Stainless Steel - 1230 Aluminum Alloy Tubes

Interface microstructure and fracture behavior of single/dual-beam laser welded steel-Al dissimilar joint produced with copper interlayer

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