Calculations and experimental determination of residual deflections of bimetallic components produced by explosion welding

Pokataev, E P; Trykov, Yu. P.; Kraev, Andrey

doi:10.1080/09507119909447400

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…dimensional instability during cutting or machining operations. For this reason, a number of recent investigations have been carried out with the objective of quantifying explosion welding residual stresses [7][8][9][10][11] as well as to establish appropriate stress relaxation treatments [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Residual Stress Analysis of Explosion Cladded Inconel 625 and ASME SA516-70 Carbon Steel Bimetal Plates

Varavallo

Moreira

Paes

et al. 2014

AMR

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Abstract. In the present work the explosion welded joint produced between an Inconel 625 alloy and ASTM A516-70 carbon steel plates was investigated. After welding, the cladded plates were submitted to stress relief annealing at 600 °C for 3 h. The cross section of the cladded plates was examined in both as welded and heat treated conditions by optical microscopy and scanning electron microscopy. The hardness profile across the cladded interface was measured and the residual stress state created as a consequence of the explosion welding process was determined by X-ray diffraction. The experimental results showed that the Inconel 625 alloy adhered well to the ASTM SA516-70 steel, demonstrating the viability of the explosion cladding process for producing bimetal plates of the mentioned alloys. In the as welded condition, metallography analysis indicated severe plastic deformation close to the cladded interface and a wavy morphology characteristic of high bond strength. Elevated tensile residual stresses were created as a result of the welding process and considerable stress relaxation was attained by application of the proposed heat treatment.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Residual Stress Analysis of Explosion Cladded Inconel 625 and ASME SA516-70 Carbon Steel Bimetal Plates

Varavallo

Moreira

Paes

et al. 2014

AMR

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“…In the case of dissimilar materials, residual stresses are further enhanced by differences in elastic properties and Coefficient of Thermal Expansion (CTE) among the base materials [7]. This has led to a number of recent investigations with the objective of determining residual stresses in clad plates produced by explosion welding [8][9][10][11][12] and studying stress relief treatments [13][14][15] In the present contribution, an investigation of the microstructure and residual stresses formed as a consequence of the explosion welding process applied for the production of ASME SA516-70 steel and AL-6XN (UNS N08367) steel bimetal plates is proposed. The ASME SA516-70 steel is a carbon steel intended primarily for service in welded pressure vessels, while AL-6XN is a superaustenitic stainless steel (24%Ni, 22%Cr, 6.3%Mo), for pressure vessels and general applications.…”

Section: Introductionmentioning

confidence: 99%

Welding Induced Residual Stresses in Explosion Cladded AL-6XN Superaustenitic Stainless Steel and ASME SA516-70 Steel Composite Plates

Varavallo

Moreira

Paes

et al. 2014

AMR

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Abstract. Explosion welding is a solid state joining process that allows the manufacturing of corrosion resistant structural composite materials in the form of plates. In the present work, composite bimetal plates of AL-6XN superaustenitic stainless steel and ASME SA516-70 carbon steel produced by explosion welded were studied. Post-weld annealing for stress relief was conducted at 600 °C for 30min and the materials were examined in both the as welded and heat treated conditions. The microstructure of the weld was characterized by optical and scanning electron microscopy and the variation of hardness across the cladded interface was determined by applying Vickers microhardness. The residual stresses generated by the explosion welding process were analyzed by X-ray diffraction using the sin 2 ψ technique. The cladded interface exhibited a wavy morphology, characteristic of high bonding strength in explosion welds and the variation of hardness was found to be strongly influenced by strain hardening at the cladded interface. Elevated tensile stresses (700 ± 30 MPa) were present after explosion welding. Application of the proposed heat treatment allowed for significant stress relaxation, with a final tensile stress of 93 ± 10 MPa.

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Experimental study of through-depth residual stress in explosive welded Al–Cu–Al multilayer

Sedighi

Honarpisheh

2012

Materials & Design

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Calculations and experimental determination of residual deflections of bimetallic components produced by explosion welding

Cited by 3 publications

References 1 publication

Microstructure and Residual Stress Analysis of Explosion Cladded Inconel 625 and ASME SA516-70 Carbon Steel Bimetal Plates

Microstructure and Residual Stress Analysis of Explosion Cladded Inconel 625 and ASME SA516-70 Carbon Steel Bimetal Plates

Welding Induced Residual Stresses in Explosion Cladded AL-6XN Superaustenitic Stainless Steel and ASME SA516-70 Steel Composite Plates

Experimental study of through-depth residual stress in explosive welded Al–Cu–Al multilayer

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