Residual Stresses in Steel-Titanium Composite Manufactured by Explosive Welding

Karolczuk, Aleksander; Kluger, Krzysztof; Kowalski, Mateusz; Żok, F.; Robak, Grzegorz

doi:10.4028/www.scientific.net/msf.726.125

Cited by 19 publications

(17 citation statements)

References 10 publications

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“…Some types of coatings require special welding or bonding methods, such as explosive bonding (Ref [1][2][3]. This is a highly efficient technique used to join a wide variety of similar and/or dissimilar metals such as steel and titanium (Ref 4,5).…”

Section: Introductionmentioning

confidence: 99%

The Effect of Heat Treatment on the Microstructure and Properties of Explosively Welded Titanium-Steel Plates

Wachowski

Gloc

Ślęzak

et al. 2017

J. of Materi Eng and Perform

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This paper describes a study of explosively welded titanium-carbon steel S355J2+N plates. Following the welding, plates underwent heat treatment at temperature of 600°C for 90 min with cooling in furnace to 300°C and in air to room temperature. The structure of the bonding was examined by using light, scanning electron (SEM) and transmission electron microscopy. The mechanical properties before and after heat treatment were examined applying three-point bending tests with cyclic loads and hardness measurements. Fracture surfaces were investigated using computer tomography and SEM. It has been found that the bonding areas are characterized by a specific chemical composition, microstructure and microhardness. Between the steel and the Ti cladding, a strongly defected transition zone was formed and melted areas with altered chemical composition were observed. It was also demonstrated that the heat treatment commonly applied to welded steel-Ti plates had a significant and negative impact on the microstructure and mechanical properties of the welded plates due to formation of brittle intermetallic phases.

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Section: Introductionmentioning

confidence: 99%

The Effect of Heat Treatment on the Microstructure and Properties of Explosively Welded Titanium-Steel Plates

Wachowski

Gloc

Ślęzak

et al. 2017

J. of Materi Eng and Perform

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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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“…The same variation of propagation rate was observed for other levels of the displacement amplitude Δl. The phenomenon of the decrease in the growth rate of crack propagation after its initial rapid growth may be due to the occurrence of compressive residual stresses [10,11] occurring in the titanium layer as the result of heat treatment.…”

Section: Analysis Of the Experimental Resultsmentioning

confidence: 99%

Numerical analysis of the states of stress in the steel-titanium bimetal during cyclic bending

Robak

Cichański

2017

E3S Web Conf.

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Abstract. This paper presents the results of experimental study into steel-titanium bimetal obtained by means of explosive welding, which involved the development of fatigue cracks. A particular emphasis in the report was placed on the analysis of development of the crack in the area in which the two metals are joined. The study was accompanied by a numerical analysis of the distribution of stresses in the weld area in terms of the elastic-plastic characteristics. The numerical analysis performed in terms of the elastic-plastic characteristics demonstrated that the titanium layer is completely plasticized as a result of the acting loading, when the crack is still located in the steel part of the examined plater.

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Residual Stresses in Steel-Titanium Composite Manufactured by Explosive Welding

Cited by 19 publications

References 10 publications

The Effect of Heat Treatment on the Microstructure and Properties of Explosively Welded Titanium-Steel Plates

The Effect of Heat Treatment on the Microstructure and Properties of Explosively Welded Titanium-Steel Plates

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

Numerical analysis of the states of stress in the steel-titanium bimetal during cyclic bending

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