Effect of Mo-alloyed layer on oxidation behavior of TiAl-based alloy

Liu, Xiaoping; You, Kai; Wang, Zhenxia; Zhang, Minquan; He, Z. Y.

doi:10.1016/j.vacuum.2012.05.015

Cited by 21 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9 that the outermost layer of both alloys was covered by TiO 2 which has fast-growing kinetics. The growth of the outermost TiO 2 layer is taken place by the outward diffusion of Ti ions while oxygen ions diffused inward to form the inner mixed TiO 2 /Al 2 O 3 layer [45]. edS analysis results of points 2 and 7 lying on the beneath of the outermost TiO 2 layer indicate the presence of an elevated amount of oxygen and aluminum along with minor amount of titanium and addition elements.…”

Section: Cross-sectional Analysismentioning

confidence: 97%

Archives of Metallurgy and Materials

Garip

Özdemir

2020

View full text Add to dashboard Cite

ApplicAtion of ArtificiAl neurAl network for prediction of the cyclic oxidAtion BehAvior of electricAl resistAnce sintered GAmmA-tiAl intermetAllics TiAl based intermetallics are widely used for structural applications in aviation, chemical engineering, automotive and sports equipment. in this study, the electrical resistance sintering (erS) technology used in the production of gamma-TiAl intermetallics is based on the principle of applying pressure simultaneously with a high-density electric current. The purpose of this study was to investigate the cyclic oxidation resistance of Ti-44Al-3mo and Ti-44Al-3Nb alloys (at.%) and the applicability of artificial neural network (ANN) modeling for the forecast of the oxidation behavior of these alloys. in order to obtain this aim, the alloys sintered by erS were oxidized at 900°C for 360 h and then the oxidation behaviors of them are evaluated by plotting a graph between weight change as a function of time. The data collected after the oxidation experiments were used to construct the prediction models. The modelling results show that a good agreement between experimental results and prediction results was found. The oxidized alloys were characterized using Xrd and Sem-edS. The Xrd patterns revealed the oxidation products are composed of TiO 2 and Al 2 O 3 oxides. Sem-edS analysis indicated that the oxide scales of alloys are made up of a multilayered structure.

show abstract

Section: Cross-sectional Analysismentioning

confidence: 97%

Archives of Metallurgy and Materials

Garip

Özdemir

2020

View full text Add to dashboard Cite

show abstract

“…Liu et al [ 50 ] reported that a Mo-alloyed layer with a thickness of about 40 μm was fabricated on the Ti-46.5Al-2.5V-1Cr substrate using plasma surface metallurgy technique. They attributed the increased oxidation resistance of Mo-alloyed Ti-46.5Al-2.5V-1Cr to the formation of Ti 2 AlMo phase, which is impermeable to oxygen.…”

Section: High-temperature Oxidation Kinetics Of Ti-al Alloysmentioning

confidence: 99%

A Short Review on the Phase Structures, Oxidation Kinetics, and Mechanical Properties of Complex Ti-Al Alloys

et al. 2021

View full text Add to dashboard Cite

This paper reviews the phase structures and oxidation kinetics of complex Ti-Al alloys at oxidation temperatures in the range of 600–1000 °C. The mass gain and parabolic rate constants of the alloys under isothermal exposure at 100 h (or equivalent to cyclic exposure for 300 cycles) is compared. Of the alloying elements investigated, Si appeared to be the most effective in improving the oxidation resistance of Ti-Al alloys at high temperatures. The effect of alloying elements on the mechanical properties of Ti-Al alloys is also discussed. Significant improvement of the mechanical properties of Ti-Al alloys by element additions has been observed through the formation of new phases, grain refinement, and solid solution strengthening.

show abstract

Plasma Surface Metallurgy of Intermetallic Compounds

Xiong²

2017

Plasma Surface Metallurgy

View full text Add to dashboard Cite

Effect of Mo-alloyed layer on oxidation behavior of TiAl-based alloy

Cited by 21 publications

References 18 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

A Short Review on the Phase Structures, Oxidation Kinetics, and Mechanical Properties of Complex Ti-Al Alloys

Plasma Surface Metallurgy of Intermetallic Compounds

Contact Info

Product

Resources

About