Thermodynamic and experimental study of TiAgCu alloys

Paulasto, M.; Loo, van Fjj Frans; Kivilahti, J.K.

doi:10.1016/0925-8388(94)06026-6

Cited by 38 publications

(21 citation statements)

References 9 publications

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“…According to the reported data of the ternary Ag-Cu-Ti system, the relationship between the Ti activity a Ti and the chemical composition of Ag-Cu-Ti alloy at 1223 K (or 950 ) ℃ is given by [8,9] (1)…”

Section: Formation Mechanism Of the Brazing Resultantsmentioning

confidence: 99%

Effects of heating temperature on interfacial microstructure and compressive strength of brazed CBN-AlN composite abrasive grits

Ding

Chen

et al. 2010

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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CBN-AlN composite abrasive grits and AISI 1045 steel were brazed using Ag-Cu-Ti active filler alloy by heating up to the temperature of 890, 900 and 920 ℃, respectively, and then held at the temperature for 8 min. Optical microscope, scanning electron microscope and X-ray diffraction equipment were utilized to study the effects of heating temperature on the microstructure of the joining interface. The compressive strength of the brazed composite grits was also measured. The experimental results show that the atoms of Ti, Al, B and N have preferentially penetrated towards the joining interface of composite grits and filler alloy. The compounds of Ti-nitride, Ti-borides and Ti 3 AlN were formed in the reaction layer. Degradation effect was not made on the compressive strength of the CBN-AlN composite grits when the brazing process was carried out in the temperature range of 890-920 ℃.

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Section: Formation Mechanism Of the Brazing Resultantsmentioning

confidence: 99%

Effects of heating temperature on interfacial microstructure and compressive strength of brazed CBN-AlN composite abrasive grits

Ding

Chen

et al. 2010

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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“…For brazing using the Ti-Ag-Cu system the isothermal section of the ternary phase diagram is used [Petzow & Effenberg, 1988]. The miscibility gap divides the liquid braze into solutions of low and high Ti content [Paulasto et al, 1995] and has a significant effect on the mechanisms of active brazing. The very large values of the surface tension of Ag and Cu of the braze at their melting points show that these metals in pure state do not wet the carbon based materials.…”

Section: Nanocomposites With Unique Properties and Applications In Mementioning

confidence: 99%

Joining of Cf/C and Cf/SiC Composites to Metals

Mergia¹

2011

Nanocomposites With Unique Properties and Applications in Medicine and Industry

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“…The Ag-Cu-Ti ternary alloy system has a miscibility gap dividing the liquid filler metal into two solutions having different Ti concentrations at 1173 K. [19][20][21][22] The Ag-rich phase with a massive-island shape might be formed by this liquid separation due to the different melting points of the two liquids.…”

Section: Microstructural Analysismentioning

confidence: 99%

Induction Brazing of γ-TiAl to Alloy Steel AISI 4140 Using Filler Metal of Eutectic Ag-Cu Alloy Coated with Ti Film

et al. 2005

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The induction brazing of TiAl to alloy steel AISI 4140 was carried out using a filler metal of eutectic Ag-Cu alloy coated with Ti film. The brazement was comprised of Ag-rich, Ti-rich, CuTi and CuTi 2 phases at a brazing temperature of 1073 K. Two reaction layers, AlCuTi and AlCu 2 Ti phases, were observed between the filler metal and TiAl. The consumption of Cu to form these intermetallic compounds during brazing resulted in the increasing amount of Ag-rich and Ti-rich phases in the brazement with increasing the brazing temperature and time. The maximum tensile strength of the joints, 294 MPa, was achieved at 1073 K for 60 s, which was 71% of that of the TiAl base metal. The mechanical strength of the joint decreased with increasing the brazing temperature and time due to the growth of brittle reaction products at the interface. The fracture mode of the specimen brazed at 1073 K for 60 s was a mixed mode, consisting of 16% TiAl base metal fracture and 84% interface fracture through the AlCu 2 Ti and AlCuTi phases. However, the fracture location shifted toward the interfacial reaction layers with increasing the bonding temperature and time.

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Thermodynamic and experimental study of TiAgCu alloys

Cited by 38 publications

References 9 publications

Effects of heating temperature on interfacial microstructure and compressive strength of brazed CBN-AlN composite abrasive grits

Effects of heating temperature on interfacial microstructure and compressive strength of brazed CBN-AlN composite abrasive grits

Joining of Cf/C and Cf/SiC Composites to Metals

Induction Brazing of γ-TiAl to Alloy Steel AISI 4140 Using Filler Metal of Eutectic Ag-Cu Alloy Coated with Ti Film

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Thermodynamic and experimental study of TiAgCu alloys

Cited by 38 publications

References 9 publications

Effects of heating temperature on interfacial microstructure and compressive strength of brazed CBN-AlN composite abrasive grits

Effects of heating temperature on interfacial microstructure and compressive strength of brazed CBN-AlN composite abrasive grits

Joining of Cf/C and Cf/SiC Composites to Metals

Induction Brazing of &gamma;-TiAl to Alloy Steel AISI 4140 Using Filler Metal of Eutectic Ag-Cu Alloy Coated with Ti Film

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Induction Brazing of γ-TiAl to Alloy Steel AISI 4140 Using Filler Metal of Eutectic Ag-Cu Alloy Coated with Ti Film