Laser welding of stainless steel to titanium using explosively welded composite inserts

Черепанов, А. Н.; Мали, В. И.; Maliutina, Iuliia N.; Orishich, A. M.; Маликов, А. Г.; Drozdov, V. O.

doi:10.1007/s00170-016-9657-2

Cited by 23 publications

(5 citation statements)

References 23 publications

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“…Clad and laminated composites featuring individual layers of metals, each introducing characteristic properties, are also popular. Laminates consisting of metallic layers are typically produced by methods based on welding, such as laser welding [28], laser beam welding [29], or explosive welding [30]. Nevertheless, irrespective of the composite type, phase distribution and grain size are among the primary factors affecting its properties, and welding and similar methods involving high processing temperatures can introduce local structural modifications (grain growth, undesired precipitation of second phases, etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Kunčická,

Kocich

2023

Materials

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The study presents a method to prepare Al/Cu laminated conductors featuring two different stacking sequences using rotary swaging, a method of intensive plastic deformation. The primary focus of the work was to perform detailed characterization of the effects of room temperature swaging on the development of microstructures, including the Al/Cu interfaces, and internal misorientations pointed to the presence of residual stress within the laminates. The results revealed that both the Al and Cu components of the final laminates with 5 mm in diameter featured fine, more or less equiaxed, grains with no dominating preferential texture orientations (the maximum observed texture intensity was 2.3 × random for the Cu components of both the laminates). This fact points to the development of dynamic restoration processes during swaging. The analyses of misorientations within the grains showed that residual stress was locally present primarily in the Cu components. The Al components did not feature a substantial presence of misorientations, which confirms the dynamic recrystallization. Tensile testing revealed that the laminates with both the designed stacking sequences exhibited comparable UTS (ultimate tensile strength) of almost 280 MPa. However, notable differences were observed with regard to the plasticity (~3.5% compared to less than 1%). The laminate consisting of Al sheath and Cu wires exhibited very low plasticity as a result of significant work hardening of Al; this hypothesis was also confirmed with microhardness measurements. Observations of the interfaces confirmed satisfactory bonding of both the metallic components.

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Section: Introductionmentioning

confidence: 99%

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Kunčická,

Kocich

2023

Materials

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“…Several methods, such as friction welding [1,6,7], laser welding [8,9], diffusion bonding [10,11], roll bonding [3,12], and explosive welding [13][14][15][16][17][18][19][20][21][22], have been investigated for joining Ti alloys and steel. among some techniques, they are dif-ficult to obtain a complete metallurgical bond due to the absence of solid solubility between Fe and Ti, and formation of brittle intermetallic phases such as FeTi and Fe 2 Ti [1,5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Colloid Water Thickness on Microstructures and Mechanical Properties of Titanium/Steel Interfaces Prepared by Explosive Welding

Wang,

Yang

2023

Archives of Metallurgy and Materials

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EffEct of colloid WatEr thicknEss on MicrostructurEs and MEchanical ProPErtiEs of titaniuM/stEEl intErfacEs PrEParEd by ExPlosivE WEldingUsing colloid water as a covering for explosives can improve the energy efficiency for explosive welding, while its effects on bonding properties remain unclear. Here, by employing titanium/steel as a model system, the effect of covering thickness on microstructures and mechanical properties of the bonding interface was systematically investigated. It was found that all the welds displayed wavy interfaces, and the wave size increased with increasing covering thickness. Vortices characterized by solidified melt zones surrounded by strongly deformed parent materials, were only formed for the welds performed with a covering. Moreover, with increasing covering thickness, both the tensile strength and the elongation of the titanium/steel plate decreased, and the failure mode changed from ductile to cleavage fracture, gradually. In the tensile-shear tests, all the fractures took place in titanium matrix without separation at interface, indicating that the titanium/steel interfaces had an excellent bonding strength. The microhardness decreased with increasing distance from the interface, and this trend was more remarkable for a thicker covering. The micro-hardness inside the solidified melt zones was far higher than that observed in strain-hardened layers of the parent metal, due to formation of hard intermetallic compounds.

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“…Previous studies have shown that Ti can easily react with Fe to form highly brittle intermetallic compounds due to the large differences in the physical and chemical properties of Fe and Ti [16][17][18]. Moreover, the regulation mechanism of Ti-Fe interdiffusion behavior and the evolution mechanism of microstructure are still unclear, so there are few reports on the preparation of Ti coatings on steel substrates by plasma cladding process.…”

Section: Introductionmentioning

confidence: 99%

Effect of Powder Particle Size and Shape on Appearance and Performance of Titanium Coatings Prepared on Mild Steel by Plasma Cladding

Wang

Gao

et al. 2022

Coatings

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The preparation of Ti coatings on mild steel can both effectively improve the corrosion resistance of the substrate and reduce the application cost of Ti, which is an effective measure to improve the service performance of mild steel in the marine environment. Plasma cladding technology is an efficient method for preparing metal coatings, and the type of powder is a key process parameter for coating preparation. In this work, high-performance Ti coatings are prepared on the surface of mild steel by plasma cladding technology, and the effects of different particle sizes and shapes of Ti powders on the surface morphology, microstructure and properties of the coatings are studied. The results show that powder particle size and sphericity are the key factors affecting the morphology, structure and service performance of Ti coatings. After 1000 h of salt spray test, the spherical powder cladding coatings only suffer slight corrosion, while the irregular shape powder coating is more severely corroded. Powder cladding with moderate powder particle size and good sphericity have a smoother coating and fewer defects. Ti powders with different particle sizes and shapes all have the diffusion of Fe element during the cladding process. The surface of Ti coating prepared by spherical powder are dominated by α-Ti and Fe0.2Ti0.8 phases, while the surface of Ti coating prepared by irregular shape powder is dominated by FeTi and Ti2Fe. The interface between the coating and the substrate shows metallurgical bonding, and the increase in Ti-Fe brittle phase will deteriorate the mechanical properties and corrosion resistance of the coating. The shear strength of coatings prepared from spherical Ti powders of 75–150 μm can reach 105.18 MPa, the corrosion potential is the most positive (−0.2206 V), and the self-corrosion current density is the lowest (6.220 × 10−8 A/cm2).

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Laser welding of stainless steel to titanium using explosively welded composite inserts

Cited by 23 publications

References 23 publications

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Effect of Colloid Water Thickness on Microstructures and Mechanical Properties of Titanium/Steel Interfaces Prepared by Explosive Welding

Effect of Powder Particle Size and Shape on Appearance and Performance of Titanium Coatings Prepared on Mild Steel by Plasma Cladding

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