Microstructure evolution and mechanical properties of vacuum brazed ZrO2/Ti–6Al–4V joint utilizing a low-melting-point amorphous filler metal

Liang, Yuzheng; Kong, Jian; Dong, Kewei; Song, Xinxiang; Liu, Xiangkui; Zhu, Rui

doi:10.1016/j.vacuum.2021.110456

Cited by 18 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Attending to the EDS analysis and the Ag-Ti phase diagram, Ti-rich zones should consist of α-Ti, while the central zone of layer 1 should be essentially composed of (Ag). It is also worthy to mention that the formation of oxides such as TiO, TiO 2, and CuTi 4 O near ZrO 2 was suggested or confirmed by other authors [7][8][9][10][11][12][13]. Oxides presenting a semi-metallic nature, such as TiO and TiO 2 , are reported to ensure chemical compatibility and bonding between the ceramic base materials and the interfacial metallic phases.…”

Section: Resultsmentioning

confidence: 66%

“…For ceramic-metal joining, diffusion bonding and brazing are the most reported processes that produce a homogeneous interface and high strength joints [4]. Brazing using Ti-based or Ag-based filler alloys or even amorphous fillers is an auspicious processing route to produce dissimilar ZrO 2 and Ti6Al4V joints [5][6][7][8][9][10][11][12][13]. Ag-based fillers seem to be a suitable option to overcome the problems related to poor wettability and the development of residual stresses at the brazing interface.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Joining of Zirconia to Ti6Al4V Using Ag-Cu Sputter-Coated Ti Brazing Filler

Simões

Emadinia

Tavares

et al. 2022

Metals

View full text Add to dashboard Cite

The joining of zirconia (ZrO2) to Ti6Al4V using Ag-Cu sputter-coated Ti brazing filler foil was investigated. Brazing experiments were performed at 900, 950, and 980 °C for 30 min under vacuum. The microstructural features of the brazed interfaces were evaluated by optical microscopy (OM) and by scanning electron microscopy (SEM). The chemical composition of the brazed interfaces was analyzed by energy dispersive X-ray spectroscopy (EDS). Room temperature shear tests and Vickers microhardness tests performed across the interfaces were used to evaluate the mechanical strength of the joints. Multilayered interfaces were produced for all brazing temperatures, consisting essentially in α-Ti + Ti2(Ag, Cu), TiAg. Joining to ZrO2 was promoted by the formation of a hard layer, reaching a maximum of 1715 HV0.01, possibly consisting mainly in α-Ti and Ti oxide(s). Joining to the Ti6Al4V was established by a layer composed of a mixture of α-Ti and Ti2(Ag, Cu). The highest shear strength (152 ± 4 MPa) was obtained for brazing at 980 °C and fracture of joints occurred partially across the interface, throughout the hardest layers formed close to ZrO2, and partially across the ceramic sample.

show abstract

Section: Resultsmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Joining of Zirconia to Ti6Al4V Using Ag-Cu Sputter-Coated Ti Brazing Filler

Simões

Emadinia

Tavares

et al. 2022

Metals

View full text Add to dashboard Cite

show abstract

“…Therefore, in order to obtain a high-strength joint, it was necessary to investigate the relationship between the thickness of TiC layer and brazing temperature. It is generally believed that the thickness of the reaction layer conforms to the empirical equation [25]:…”

Section: Microstructure Characterization Of the Brazed Jointsmentioning

confidence: 99%

Vacuum brazing of TZM alloy and graphite with Ti-35Ni alloy: Microstructure, properties, and mechanism

Zhu

Song

Zhao

et al. 2023

Vacuum

View full text Add to dashboard Cite

“…Vacuum brazing has become a relatively reliable joining process for ceramics and metal materials for its convenience and excellent performance of joints [4][5][6][7][8][9][10][11]. At present, some researchers have successfully brazed alumina ceramics and various metals with silver-copper-titanium filler [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effect of copper interlayer to the microstructure and strength of alumina/304 stainless steel joint brazed with silver‐copper‐titanium filler

Li,

Chen

et al. 2023

Materialwissenschaft Werkst

View full text Add to dashboard Cite

Alumina and 304 stainless steel were brazed with silver‐copper‐titanium filler+copper foil. The effect of adding copper foil to the filler on the microstructure of the alumina/304 joint was studied, and the reasons for the effect of adding copper foil with different thicknesses on the joint performance were also analyzed. The standard microstructure of alumina/304 joint with silver‐copper‐titanium+copper foil filler is alumina ceramic/copper compound with titanium and oxygen (3 : 3 : 1) (Cu3Ti3O) continuous layer+copper titanide (TiCu)/silver solid solution+copper solid solution/titanium compound with iron (1 : 2) (TiFe2)+iron‐chromium compound/304 stainless steel. The added copper foil inhibits the diffusion of titanium elements, thereby reducing the formation of the brittle copper compound with titanium and oxygen (3 : 3 : 1) (Cu3Ti3O) and alleviating the residual stress. In addition, after adding copper foil, the copper solid solution is distributed in blocks in the joint, which also improves the plastic deformation ability of the joint. Under the synergistic effect of these two effects after adding copper foil, the joint strength is improved. When the copper foil was 200 μm, the shear strength is 198.10 MPa.

show abstract

Microstructure evolution and mechanical properties of vacuum brazed ZrO2/Ti–6Al–4V joint utilizing a low-melting-point amorphous filler metal

Cited by 18 publications

References 48 publications

Joining of Zirconia to Ti6Al4V Using Ag-Cu Sputter-Coated Ti Brazing Filler

Joining of Zirconia to Ti6Al4V Using Ag-Cu Sputter-Coated Ti Brazing Filler

Vacuum brazing of TZM alloy and graphite with Ti-35Ni alloy: Microstructure, properties, and mechanism

Effect of copper interlayer to the microstructure and strength of alumina/304 stainless steel joint brazed with silver‐copper‐titanium filler

Contact Info

Product

Resources

About