The effect of explosive welding parameters on metallurgical and mechanical interfacial features of Inconel 625/plain carbon steel bimetal plate

Rajani, H.R. Zareie; Mousavi, S.A.A. Akbari

doi:10.1016/j.msea.2012.07.012

Cited by 78 publications

(24 citation statements)

References 24 publications

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“…The differences in contrast and microstructure between the LCS and the HCCI clearly reveal the interface with wavy shape. Previous research [30,31] on explosive welding of LMCs have reported that the wavy joint is beneficial to improve the bonding strength. Eroglu and Kurt [16] also produced a HCCI / LCS laminate in solid-state by diffusion bonding at temperature range of 900-1100 o C. The results turned out that the interface is linear shape without plastic deformation.…”

Section: Interfacial Bond Qualitymentioning

confidence: 99%

Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding

Jiang

Gao

et al. 2015

J. Iron Steel Res. Int.

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. (2015). Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding. Journal of Iron and Steel Research International, 22 (5), 438-445. Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding AbstractA hot compression bonding process was developed to prepare a novel laminated composite consisting of highCr cast iron (HCCI) as the inner layer and low carbon steel (LCS) as the outer layers on a Gleeble 3500 thermomechanical simulator at a temperature of 950 °C and a strain rate of 0.001 S -1 . Interfacial bond quality and hot deformation behaviour of the laminate were studied by microstructural characterisation and mechanical tests. Experimental results show that the metallurgical bond between the constituent metals was achieved under the proposed bonding conditions without discernible defects and the formation of interlayer or intermetallic layer along the interface. The interfacial bond quality is excellent since no deterioration occurred around the interface which was deformed by Vickers indentation and compression test at room temperature with parallel loading to the interface. After well cladding by the LCS, the brittle HCCI can be severely deformed (about 57 % of reduction) at high temperature with crack-free. This significant improvement should be attributed to the decrease of crack sensitivity due to stress relief by soft claddings and enhanced flow property of the HCCI by simultaneous deformation with the LCS.

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Section: Interfacial Bond Qualitymentioning

confidence: 99%

Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding

Jiang

Gao

et al. 2015

J. Iron Steel Res. Int.

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show abstract

“…Materials cladding or modifying their surface layer are widely used technologies in the production of industry equipment and machinery, but not all of this process can provide sufficient properties in terms of the formability of the cladded material [8][9][10]. The technology which allows to produce such bimetal clad-plate and provide both high quality of joint and formability is the explosive welding technique [11][12][13][14]. In this process, the energy released during detonation of the high explosive is used to accelerate one metal plate into another, and as a result, the high velocity collision of metal plates occurs [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…These precipitates can not only decrease the mechanical properties of Inconel alloy but also cause the reduction of the joint strength between welded materials, what can result in high risk of delamination of clad plate during its utilization. Although Inconel/steel explosively welded clad-plate has been a subject of some studies, the literature does not contain sufficient research on the influence of the heat treatment on the changes in the joint zone microstructure [11][12][13][14]. Heat-activated phenomena may significantly decrease strength of the joint and cause the risk of failure during heat treatment and forming at the manufacturing stage of specific component.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Post-Weld Heat Treatment on the Microstructure of Inconel 625/Carbon Steel Bimetal Joint Obtained by Explosive Welding

Kosturek

Wachowski

Śnieżek

et al. 2019

Metals

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Inconel 625 and steel P355NH were bonded by explosive welding in this study. Explosively welded bimetal clad-plate was subjected to the two separated post-weld heat treatment processes: stress relief annealing (at 620 °C for 90 min) and normalizing (at 910 °C for 30 min). Effect of heat treatments on the microstructure of the joint has been evaluated using light and scanning electron microscopy, EDS analysis techniques, and microhardness tests, respectively. It has been stated that stress relief annealing leads to partial recrystallization of steel P355NH microstructure in the joint zone. At the same time, normalizing caused not only the recrystallization of both materials, but also the formation of a diffusion zone and precipitates in Inconel 625. The precipitates in Inconel 625 have been identified as two types of carbides: chromium-rich M23C6 and molybdenum-rich M6C. It has been reported that diffusion of alloying elements into steel P355NH takes place along grain boundaries with additional formation of voids. Scanning transmission electron microscope observation of the grain microstructure in the diffusion zone shows that this area consists of equiaxed grains (at the side of Inconel 625 alloy) and columnar grains (at the side of steel P355NH).

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“…Cladding of the materials or modifying their surface layer are widely used technologies in the production of industry equipment and machinery, but not all of this process can provide sufficient properties in terms of cladded material formability [8][9][10]. The manufacturing of clad material in which steel P355NH plays the loadbearing role and a layer of Inconel 625 alloy provides protection from corrosion may be achieved through explosive welding [11][12][13][14]. In this process, the energy released during detonation of the high explosive is used to accelerate one metal plate into another, and as the consequence the high velocity collision of metal plates occurs [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…The annealing of bimetallic materials in many cases leads to microstructural changes within the joint zone, which may deteriorate the mechanical properties of clad-plate [24]. Steel clad with Inconel 625 using explosive welding has been the subject of numerous studies, which have confirmed that it is possible to obtain such a bimetallic joint through explosive welding [11][12][13][14]. However, literature does not contain sufficient investigation of the effect of heat treatment on structural changes in the joint.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Post Weld Heat Treatment on the Microstructure of Inconel 625/Carbon Steel Bimetal Joint Obtained by Explosive Welding

Kosturek¹,

Wachowski²,

Śnieżek³

et al. 2018

Preprint

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In this investigation steel P355NH has been successfully cladded with Inconel 625 through the method of explosive welding. Explosively welded bimetal clad-plate was subjected to the two separated post weld heat treatment processes: stress relief annealing (at 620oC for 90 minutes) and normalizing (at 910oC for 30 minutes). In order to analyze the microstructure of the joint in the as-welded state and to investigate the influence of the post weld heat treatment on it, the light and scanning electron microscope observations and microhardness analysis have been performed. The examination of the diffusion zone microstructure has been performed by using the scanning transmission electron microscope. It was stated that obtained joint has characteristic wavy-shape geometry with the presence of the melted zones and severe deformed grains of both joined materials. Strain hardening of the materials in joint zone was established with microhardness analysis. In both of the heat treatments the changes in the grain structure have been observed. The normalizing heat treatment has the most significant impact on the microstructure of the joint as well as the concentration of the chemical elements in the joint zone. It was reported that due to normalizing the diffusion zone has been formed together with precipitates in the joint zone. The analysis of the diffusion zone images leads to the conclusion that the diffusion of alloying elements from Inconel 625 to steel P355NH takes place along the grain boundaries with additional formation of the voids in this area. The precipitates in Inconel 625 in the joint zone are two type of carbides – chromium-rich and molybdenum-rich. Scanning transmission electron microscope observation of the grain microstructure in the diffusion zone shows that this area consists of equiaxed grains (from the side of Inconel 625 alloy) and columnar grains (from the side of steel P355NH).

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The effect of explosive welding parameters on metallurgical and mechanical interfacial features of Inconel 625/plain carbon steel bimetal plate

Cited by 78 publications

References 24 publications

Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding

Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding

The Influence of the Post-Weld Heat Treatment on the Microstructure of Inconel 625/Carbon Steel Bimetal Joint Obtained by Explosive Welding

The Influence of the Post Weld Heat Treatment on the Microstructure of Inconel 625/Carbon Steel Bimetal Joint Obtained by Explosive Welding

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