Corrosion of Ti–STS dissimilar joints brazed by a Ag interlayer and Ag–Cu–(Pd) alloy fillers

Lee, M.K.; Park, J.J.; Lee, G.J.; Lee, J.G.; Kim, D.W.; Lim, Chang Hwy; Rhee, Chang Kyu; Lee, Y.B.; Lee, J.K.; Hong, Soon‐Jik

doi:10.1016/j.jnucmat.2010.12.003

Cited by 23 publications

(7 citation statements)

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“…In order to solve these problems, many welding methods have been practiced to investigate the joining between titanium alloys and stainless steels, mainly including brazing welding [7,[16][17][18][19][20], laser welding [2,5,6,[21][22][23][24][25], electronbeam welding [26][27][28][29][30][31], diffusion bonding [32][33][34][35][36], explosive welding [37][38][39][40], and friction stir welding [41][42][43][44][45][46][47]. Cu-based and Ag-based fillers were usually used to braze titanium/steel joints, while scattered brittle intermetallics, such as (Fe,Cu)Ti, Cu 4 Ti 3 , and CuTi [20,48] and Cu 4 Ti and CuTi 2 [7], were induced to the interfaces which were detrimental to the mechanical properties of the joints, and maximum possible tensile strength of the joints was found to be no more than 200 MPa [16][17][18][19][20]…”

Section: Introductionmentioning

confidence: 99%

A Review on Diffusion Bonding between Titanium Alloys and Stainless Steels

Song

Fang

et al. 2018

Advances in Materials Science and Engineering

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High-quality joints between titanium alloys and stainless steels have found applications for nuclear, petrochemical, cryogenic, and aerospace industries due to their relatively low cost, lightweight, high corrosion resistance, and appreciable mechanical properties.is article reviews diffusion bonding between titanium alloys and stainless steels with or without interlayers. For diffusion bonding of a titanium alloy and a stainless steel without an interlayer, the optimized temperature is in the range of 800-950°C for a period of 60-120 min. Sound joint can be obtained, but brittle FeTi and Fe-Cr-Ti phases are formed at the interface. e development process of a joint mainly includes three steps: matching surface closure, growth of brittle intermetallic compounds, and formation of the Kirkendall voids. Growth kinetics of interfacial phases needs further clarification in terms of growth velocity of the reacting layer, moving speed of the phase interface, and the order for a new phase appears. e influence of Cu, Ni (or nickel alloy), and Ag interlayers on the microstructures and mechanical properties of the joints is systematically summarized. e content of FeTi and Fe-Cr-Ti phases at the interface can be declined significantly by the addition of an interlayer. Application of multi-interlayer well prevents the formation of intermetallic phases by forming solid solution at the interface, and parameters can be predicted by using a parabolic diffusion law. e selection of multi-interlayer was done based on two principles: no formation of brittle intermetallic phases and transitional physical properties between titanium alloy and stainless steel.

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Section: Introductionmentioning

confidence: 99%

A Review on Diffusion Bonding between Titanium Alloys and Stainless Steels

Song

Fang

et al. 2018

Advances in Materials Science and Engineering

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“…According to the literature studies [L. 19-22], such a result indicates that this joint has the highest corrosion resistance among investigates diffusion boned joints. However, Lee et al [L. 19,20] reported that Ag and alloy fillers have higher resistance to corrosion.…”

Section: Resultsmentioning

confidence: 99%

EVALUATION OF WEAR AND CORROSION RESISTANCE OF TITANIUM AND STAINLESS STEEL JOINTS Made OF Al, Cu AND Ni

Szwed

Konieczny

2018

Tribologia

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In the present study, commercial pure titanium (Grade 2) was joined to the stainless steel (X5CrNi18-10) by diffusion bonding using aluminium, copper, and nickel as interlayers (100 μm). The investigation focuses on comparing the wear and corrosion resistance of the obtained diffusion joints. The microstructure of the joints was investigated using scanning electron microscopy equipped with an energy dispersive X-ray system (EDS) to determine the chemical composition of joint. The value of friction force and the wear resistance of diffusion bonded joints were carried out by block-on-ring frictional pair, preformed on the tribological tester T-05. The study was carried out under conditions of technically dry friction for the concentrated sliding contact loaded with 300 N. The friction distance for each test was 400 m. The results show that the maximum values of the friction coefficient and mass loss were obtained for joints with a nickel interlayer. The galvanic corrosion tests were carried out in 0.5 M Na2SO4 solution acidified to pH 1 with a sulphuric acid solution. The potentiodynamic polarization curves show that the lowest corrosion current was registered for the joints performed by copper.

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“…In brazed joints the braze is often substantially smaller than the parent and thus if the filler metal is less noble, rapid corrosion at the joint could occur. Galvanic corrosion is not restricted to any particular metals, and has been investigated in brazed joints including DHP (Deoxidised High Phosphorus) copper [80], Zircaloy-4 [87,89], steel and titanium [90,91] and Ti-6Al-4V [92].…”

Section: Corrosionmentioning

confidence: 99%

Brazing filler metals

Way

Willingham

Goodall

2019

International Materials Reviews

103

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Brazing is a 5000-year-old joining process which still meets advanced joining challenges today. In brazing, components are joined by heating above the melting point of a filler metal placed between them; on solidification a joint is formed. It provides unique advantages over other joining methods, including the ability to join dissimilar material combinations (including metal-ceramic joints), with limited microstructural evolution; producing joints of relatively high strength which are often electrically and thermally conductive. Current interest in brazing is widespread with filler metal development key to enabling a range of future technologies including; fusion energy, Solid Oxide Fuel Cells and nanoelectronics, whilst also assisting the advancement of established fields, such as automotive lightweighting, by tackling the challenges associated with joining aluminium to steels. This review discusses the theory and practice of brazing, with particular reference to filler metals, and covers progress in, and opportunities for, advanced filler metal development.

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Corrosion of Ti–STS dissimilar joints brazed by a Ag interlayer and Ag–Cu–(Pd) alloy fillers

Cited by 23 publications

References 10 publications

A Review on Diffusion Bonding between Titanium Alloys and Stainless Steels

A Review on Diffusion Bonding between Titanium Alloys and Stainless Steels

EVALUATION OF WEAR AND CORROSION RESISTANCE OF TITANIUM AND STAINLESS STEEL JOINTS Made OF Al, Cu AND Ni

Brazing filler metals

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