Microstructural characterization of Y2O3 in in situ synthesized titanium matrix composites

Lü, Weijie; Xiao, Lv; Xu, D.; Qin, Jining; Zhang, D.

doi:10.1016/j.jallcom.2006.06.037

Cited by 19 publications

(4 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the Ti -Si phase diagram [11], b-Ti phase will firstly precipitate and grow from Ti-4.5Si alloy liquid, and then Ti + Ti 5 Si 3 eutectic cells are formed when cooling down below 1 330 8C. Additionally, some authors [12,13] have also reported that TiC or Y 2 O 3 phase nucleates and grows earlier than b-Ti phase in the liquid phase. So, it can be concluded that TiC or/and Y 2 O 3 particles are the primary phase during the solidification process of the composites in this work.…”

Section: Resultsmentioning

confidence: 99%

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y₂O₃ + TiC)/Ti-4.5Si composites

Zhang

Zhu

et al. 2013

IJMR

View full text Add to dashboard Cite

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y 2 O 3 + TiC)/ Ti-4.5Si composites (Y 2 O 3 + TiC)/Ti-4.5Si composites have been in-situ synthesized using arc-melting technology. Y 2 O 3 and TiC particles grow in near-equiaxed and dendritic shapes, which are distributed uniformly in Ti-4.5Si matrix including the network Ti + Ti 5 Si 3 eutectic cells. From hardness and compressive tests at room temperature, (Y 2 O 3 + TiC)/Ti-4.5Si composites show the higher hardness and compressive strength compared with the unreinforced and single TiC reinforced Ti-4.5Si matrix. The introduction of in-situ Y 2 O 3 and TiC particles influenced the oxidation behavior of the matrix. The excellent oxidation resistance of Y 2 O 3 and TiC particle reinforced composites is attributed to lower growth rate, dense oxide scale and stronger adherence of oxide scale.

show abstract

Section: Resultsmentioning

confidence: 99%

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y₂O₃ + TiC)/Ti-4.5Si composites

Zhang

Zhu

et al. 2013

IJMR

View full text Add to dashboard Cite

show abstract

“…Ke et al found that Y would combine with Al to form a linear or network Al 2 Y in casting TiAl alloys [22]. In general, PM TiAl alloys contain high O. Y easily reacts with O [23][24][25]. According to Table 1, the precipitate contains a high content of Y and O elements, and Y/O is close to 2/3.…”

Section: Characterizations Of Powdermentioning

confidence: 99%

Microstructure Evolution and Mechanical Properties of PM-Ti43Al9V0.3Y Alloy

et al. 2020

View full text Add to dashboard Cite

A novel strategy of microstructure design is introduced to improve the mechanical properties of TiAl alloys, fabricated by powder metallurgy. The gas atomization powder and as-HIPed (Hot isostatic pressing) TiAl are investigated by scanning electron microscopy, energy dispersive spectrometry, transmission electron microscopy, and electron backscattered diffraction. The dispersed submicron precipitate in the microstructure is determined to be Y2O3. A microstructure with uniform fine grain is obtained. The room temperature strength and strain reach 793 MPa and 1.5%, respectively. The strength and strain at 700 °C are still as high as 664 MPa and 9.2%, respectively. The fine grain and precipitate lead to a high room-temperature plasticity.

show abstract

“…Recently, many researchers reported that the addition of trace ceramic particles such as TiC, [3] Y 2 O 3 , [4] TiB, [5,6] and TiB 2 [7,8] can refine the grain significantly, which the reduction of grain size reaches to quintessentially an order of magnitude. Recently, many researchers reported that the addition of trace ceramic particles such as TiC, [3] Y 2 O 3 , [4] TiB, [5,6] and TiB 2 [7,8] can refine the grain significantly, which the reduction of grain size reaches to quintessentially an order of magnitude.…”

Section: Introductionmentioning

confidence: 99%

Effect of Trace B on the Microstructure and Mechanical Properties of a Newly Near α High Temperature Titanium Alloy

et al. 2017

View full text Add to dashboard Cite

In this study, the microstructural evolution and mechanical properties of a newly near a titanium alloy with trace additions of B by in situ casting route are investigated. The results show that the coarse prior b grain and a lath within matrix alloy are gradually refined with increasing of B addition. The relative refinement mechanism of prior b grain and a lath width is analyzed and discussed. In addition, it is shown that both of ultimate compressive strength (UCS) and yield strength (UYS) increase with B addition, which is mainly attributed to microstructural refinement. However, the compressive ductility and fracture toughness decrease with increasing of B addition, which is due to the cracking of TiB, leading to the acceleration of crack extension.

show abstract

Microstructural characterization of Y2O3 in in situ synthesized titanium matrix composites

Cited by 19 publications

References 19 publications

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y₂O₃ + TiC)/Ti-4.5Si composites

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y₂O₃ + TiC)/Ti-4.5Si composites

Microstructure Evolution and Mechanical Properties of PM-Ti43Al9V0.3Y Alloy

Effect of Trace B on the Microstructure and Mechanical Properties of a Newly Near α High Temperature Titanium Alloy

Contact Info

Product

Resources

About

Microstructural characterization of Y2O3 in in situ synthesized titanium matrix composites

Cited by 19 publications

References 19 publications

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y2O3 + TiC)/Ti-4.5Si composites

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y2O3 + TiC)/Ti-4.5Si composites

Microstructure Evolution and Mechanical Properties of PM-Ti43Al9V0.3Y Alloy

Effect of Trace B on the Microstructure and Mechanical Properties of a Newly Near α High Temperature Titanium Alloy

Contact Info

Product

Resources

About

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y₂O₃ + TiC)/Ti-4.5Si composites

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y₂O₃ + TiC)/Ti-4.5Si composites