Effects of the coating system and interfacial region thickness on the thermal residual stresses in SiCf/Ti–6Al–4V composites

Bin, Huang; Yang, Yanqing; Luo, Hengjun; Yuan, Meini

doi:10.1016/j.matdes.2008.05.013

Cited by 33 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, residual stress can also lead to peakshift . Reported coefficient of thermal expansion of Ti 2 AlC is larger than that of TiC, but smaller than that of TiAl, because the Ti–C bonding is remarkably stronger than the Ti–Al bonding . Thus peakshift is the total effect of both microstructure and residual stress.…”

Section: Resultsmentioning

confidence: 99%

Raman Investigation of Interfacial Reaction Product of SiC_f/Ti43Al9V Composite

Zhang

Yang

et al. 2015

J. Am. Ceram. Soc.

Self Cite

View full text Add to dashboard Cite

Interficial reaction products of 800°C heat‐treated SiCf/Ti43Al9V are studied. EDS mapping indicates two layers existence in the interface with different element enrichment. Raman line scanning along interface also shows two layers with TiCx next to SiC fiber and Ti2AlC next to matrix. Excess carbon throughout the interface and accumulation in TiCx layer is confirmed by Raman. FWHH of both D and G peaks indicate carbon in Ti2AlC layer is more disordered than that in TiCx layer. According to G peak and I(D)/I(G), carbon in interface can be assigned to disordered carbon with perfect graphene units size (La) stays around 0.7–0.9 nm. Raman peaks of Ti2AlC vary with same trend throughout Ti2AlC layer is detected, and Raman spectra of Ti2AlC near TiCx layer is different from that near TiAl matrix, which results from residual stress and TiC intergrowth with Ti2AlC due to lack of Al.

show abstract

Section: Resultsmentioning

confidence: 99%

Raman Investigation of Interfacial Reaction Product of SiC_f/Ti43Al9V Composite

Zhang

Yang

et al. 2015

J. Am. Ceram. Soc.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition, the prediction of the composite Young's modulus using the FE unit cells, with different fibre volume fractions, is compared with the analytical solution using equation (9) and experimental results. 19 The results are presented in Figure 12.…”

Section: Comparison With Experimental Resultsmentioning

confidence: 99%

“…Most researchers have focused on their attention the analysis of fibrematrix interfaces by using a single-fibre unit cell as a representative volume element (RVE). [4][5][6][7][8][9][10][11][12][13] However, investigations of the elasto-plastic behaviours of TiMMC shafts under torsional loading using a unit cell approach are limited. The objective of this work is to use FE simulations to analyse the elasto-plastic behaviour of TiMMC shafts, under torsional loading, using a unit cell approach, in order to provide a better understanding of the failure mechanisms which may occur in TiMMC shafts.…”

Section: Introductionmentioning

confidence: 99%

Elasto-plastic finite element analysis of titanium metal matrix composite shafts under torsional loading

Hyde

Punyong

Becker

2014

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

Elasto-plastic finite element analyses of titanium metal matrix composite shafts subjected to torsional loading are presented based on a unit cell approach. The analyses cover different volume fractions and different values of the coefficient of friction for two fibre orientations, +45° and ±45°. Investigations of the interface contact pressure, debonding and plastic strains show that under torsional loading, the ±45° fibre direction is more suitable than the +45° fibre orientation for high-load applications.

show abstract

“…Several potential diffusion barrier coatings, including carbon, carbides, borides, oxides, nitrides, and transition metals, have been investigated to protect SiC fiber and control the interfacial reactions of SiC f /Ti [19,20,21,22,23]. Among them, C coating is still the most widely used diffusion barrier coatings in the SiC f /Ti [24,25]. In addition to protecting the SiC fiber, the C coating has the following advantages: (1) It has a good thermal expansion coefficient with SiC fiber; (2) it has a good compatibility with SiC; (3) the interface reaction of composites is easy to control; and (4) the process stability is good.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Reactions and Mechanical Properties Studies of C-Coated and C/B4C Duplex-Coated SiC Fiber-Reinforced Ti2AlNb Composites

et al. 2019

View full text Add to dashboard Cite

Continuous SiC fiber-reinforced Ti2AlNb matrix composites have a great potential for high-temperature aviation structure applications, and their properties strongly depend on the microstructure of the interfacial reaction layer. Notably, introducing diffusion barrier coatings has still been a popular strategy for optimizing the interfacial structure and interfacial properties of SiCf/Ti. In this work, C coating and C/B4C duplex coating were successfully fabricated onto SiC fibers via chemical vapor deposition (CVD), then consolidated into the SiCf/C/Ti2AlNb and the SiCf/C/B4C/Ti2AlNb composites, respectively, via hot isostatic pressing (HIP) under the condition of 970 °C, 150 MPa, 120 min, and finally furnace cooled to room temperature. The C- and C/B4C-dominated interfacial reactions in the SiCf/C/Ti2AlNb and the SiCf/C/B4C/Ti2AlNb were explored, revealing two different reaction products sequences: The different-sized TiC and the coarse-grained (Ti,Nb)C + AlNb3 for the SiCf/C/Ti2AlNb; and the fine-grained TiB2 + TiC, the needle-shaped (Ti,Nb)B2/NbB + (Ti,Nb)C, the coarse-grained (Ti,Nb)C + AlNb2 for the SiCf/C/B4C/Ti2AlNb. Annealing experiments were further carried out to verify the different reaction kinetics caused by C coating and C/B4C duplex coating. The reaction layer (RL)-dominated interfacial strength and tensile strength estimations showed that higher interface strength and tensile strength occurred in the SiCf/C/Ti2AlNb instead of the SiCf/C/B4C/Ti2AlNb, when the same failure mode of fiber push-out took place.

show abstract

Effects of the coating system and interfacial region thickness on the thermal residual stresses in SiCf/Ti–6Al–4V composites

Cited by 33 publications

References 13 publications

Raman Investigation of Interfacial Reaction Product of SiC_f/Ti43Al9V Composite

Raman Investigation of Interfacial Reaction Product of SiC_f/Ti43Al9V Composite

Elasto-plastic finite element analysis of titanium metal matrix composite shafts under torsional loading

Interfacial Reactions and Mechanical Properties Studies of C-Coated and C/B4C Duplex-Coated SiC Fiber-Reinforced Ti2AlNb Composites

Contact Info

Product

Resources

About

Effects of the coating system and interfacial region thickness on the thermal residual stresses in SiCf/Ti–6Al–4V composites

Cited by 33 publications

References 13 publications

Raman Investigation of Interfacial Reaction Product of SiCf/Ti43Al9V Composite

Raman Investigation of Interfacial Reaction Product of SiCf/Ti43Al9V Composite

Elasto-plastic finite element analysis of titanium metal matrix composite shafts under torsional loading

Interfacial Reactions and Mechanical Properties Studies of C-Coated and C/B4C Duplex-Coated SiC Fiber-Reinforced Ti2AlNb Composites

Contact Info

Product

Resources

About

Raman Investigation of Interfacial Reaction Product of SiC_f/Ti43Al9V Composite

Raman Investigation of Interfacial Reaction Product of SiC_f/Ti43Al9V Composite