Infrared brazing of Ti–6Al–4V using two silver-based braze alloys

Du, Yun; Shiue, Ren-Kae

doi:10.1016/j.jmatprotec.2009.03.001

Cited by 26 publications

(10 citation statements)

References 6 publications

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“…Brazing is one of the most useful techniques employed for joining ceramics to metals [10]. Brazing has been extensively applied for joining titanium and titanium alloys [1,[11][12][13][14]. Joining of titanium alloys has to be performed in an inert gas or high-vacuum atmosphere with stringent process controls to avoid reaction of titanium with other elements.…”

Section: Introductionmentioning

confidence: 99%

Increasing Ti–6Al–4V brazed joint strength equal to the base metal by Ti and Zr amorphous filler alloys

Ganjeh

Sarkhosh

Bajgholi

et al. 2012

Materials Characterization

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Microstructural features developed along with mechanical properties in furnace brazingof Ti-6Al-4V alloy using STEMET 1228 (Ti-26.8Zr-13Ni-13.9Cu, wt.%) and STEMET 1406 (Zr-9.7Ti-12.4Ni-11.2Cu, wt.%) amorphous filler alloys. Brazing temperatures employed were 900-950°C for the titanium-based filler and 900-990°C for the zirconium-based filler alloys, respectively. The brazing time durations were 600, 1200 and 1800 s. The brazed joints were evaluated by ultrasonic test, and their microstructures and phase constitutions analyzed by metallography, scanning electron microscopy and X-ray diffraction analysis. Since microstructural evolution across the furnace brazed joints primarily depends on their alloying elements such as Cu, Ni and Zr along the joint. Accordingly, existence of Zr 2 Cu, Ti 2 Cu and (Ti, Zr) 2 Ni intermetallic compounds was identified in the brazed joints. The chemical composition of segregation region in the center of brazed joints was identical to virgin filler alloy content which greatly deteriorated the shear strength of the joints. Adequate brazing time (1800 s) and/ or temperature (950°C for Ti-based and 990°C for Zr-based) resulted in an acicular Widmanstätten microstructure throughout the entire joint section due to eutectoid reaction. This microstructure increased the shear strength of the brazed joints up to the Ti-6Al-4V tensile strength level. Consequently, Ti-6Al-4V can be furnace brazed by Ti and Zr base foils produced excellent joint strengths.

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Section: Introductionmentioning

confidence: 99%

Increasing Ti–6Al–4V brazed joint strength equal to the base metal by Ti and Zr amorphous filler alloys

Ganjeh

Sarkhosh

Bajgholi

et al. 2012

Materials Characterization

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“…Lowering the brazing temperature and reducing the contact time of a molten filler alloy with a parent titanium alloy reduce the Ti erosion [26,42] and increase the reliability of the thin-wall titanium joints [3]. Al-based filler alloys can be a suitable candidate for brazing titanium satisfying the following conditions: the melting temperature considerably below the α↔β transformation temperature of titanium alloys, a good metallurgical compatibility with titanium alloys, good wetting and spreading on titanium surface, good corrosion resistance [59], low density, and acceptable strength for a large joining surface [2].…”

Section: Aluminum-based Filler Alloysmentioning

confidence: 99%

“…According to the main alloying elements, filler alloys for brazing titanium and its alloys can mainly be classified into five groups: titanium-based [1,14,16,[18][19][20][21], zirconiumbased [16,19,22,23], silver-based [24][25][26][27], aluminum-based [28][29][30][31], and nickel-based [19,32] filler alloys. Attempts of brazing titanium using Al-based filler alloys and other filler systems started over than 60 years ago [33].…”

Section: Introductionmentioning

confidence: 99%

Low‐Temperature Brazing of Titanium Using Al‐Based Filler Alloys

Muhrat

Puga

Barbosa

2018

Advances in Materials Science and Engineering

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Brazing of titanium using low melting temperature filler alloys is a preferred choice regarding cost and preserving its mechanical properties. However, brazing titanium at low temperature is still a challenge, especially regarding aluminum-based filler alloys. During the last years, several brazing methods and Al-based fillers were developed to meet industrial requirements; some of them might achieve some of those requirements. e use of ultrasound in brazing has gained increased attention recently, which helps to reduce the time and the necessity for a special brazing environment, subsequently, reducing cost and increasing applicability. Brazing titanium below the α↔β transformation temperature, using commercial and experimental Al-based fillers of different compositions, is presented in this review; including the procedures of traditional and ultrasound-assisted brazing methods. Correspondingly, the effects of brazing conditions and alloying elements on the mechanical properties and the intermetallic compounds formation are examined.

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“…Candidates are materials generally used for brazing titanium alloys, such as Al-based, Ag-based or Zr-based alloys [6]. The Cu-Ti, Ag-Ti and Cu-Ag-Ti systems are very well investigated [7][8][9][10][11][12] and processes like interdiffusion and formation of intermetallic reaction zones [13][14][15] are well understood. These processes are also relevant for 3MCs.…”

Section: Introductionmentioning

confidence: 99%

“…These processes are also relevant for 3MCs. In this study, a common brazing alloy consisting of Ag and 28 wt% Cu was used [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

In-situ investigation of microcrack formation and strains in Ag–Cu-based multi-metal matrix composites analysed by synchrotron radiation

Gussone

Reinhard

Kasperovich

et al. 2014

Materials Science and Engineering: A

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Infrared brazing of Ti–6Al–4V using two silver-based braze alloys

Cited by 26 publications

References 6 publications

Increasing Ti–6Al–4V brazed joint strength equal to the base metal by Ti and Zr amorphous filler alloys

Increasing Ti–6Al–4V brazed joint strength equal to the base metal by Ti and Zr amorphous filler alloys

Low‐Temperature Brazing of Titanium Using Al‐Based Filler Alloys

In-situ investigation of microcrack formation and strains in Ag–Cu-based multi-metal matrix composites analysed by synchrotron radiation

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