Evolution of microstructure and tensile properties of in situ titanium matrix composites with volume fraction of (TiB+TiC) reinforcements

Zhang, C.J.; Kong, Fantao; Xiao, Shulong; Zhao, Ertuan; Xu, Lijuan; Chen, Y.Y.

doi:10.1016/j.msea.2012.04.004

Cited by 113 publications

(34 citation statements)

References 35 publications

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“…As reported in our previous study [5], the phases formed in the composite are TiB, TiC, α-Ti and β-Ti. Figure 3 shows the deformation microstructure at different sampling points within the as-forged (TiB w + TiC p )/Ti composite.…”

Section: Microstructuresupporting

confidence: 77%

“…The raw materials for preparing the composite were grade I sponge titanium (99.9%), B4C powder (98%), graphite powder and other alloying elements, including Al (99.99%), Sn (99.9%), sponge Zr (99.9%), crystal Si (99.9%) and Al-Mo master alloy. The raw materials were melted in an induction skull melting furnace (ISM) and the detailed procedure was described in our previous study [5]. The β transus temperature of the composite verified by differential scanning calorimetry (DSC) is approximately 1105 °C.…”

Section: Methodsmentioning

confidence: 99%

“…Generally, (α + β) forging effectively improves both the strength and the elongation, as compared with the as cast (TiBw + TiCp)/Ti composite [5]. In general, the central area exhibits better tensile properties than those within the peripheral area.…”

Section: Tensile Propertiesmentioning

confidence: 99%

“…As one approach for producing TMCs, in situ synthesis techniques have drawn extensive interest because of their superior properties along with the ease of fabrication [5][6][7]. Among the reinforcements available for TMCs, TiB whiskers (TiB w ) and TiC particles (TiC p ) are the most suitable reinforcements since they possess high thermal stability, similar density and thermal expansion coefficient to titanium alloys, high modulus and stiffness [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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The Microstructural Characterization and Mechanical Properties of 5 vol. % (TiBw + TiCp)/Ti Composite Produced by Open-Die Forging

Han

Lü

Zhang

et al. 2018

Metals

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Abstract:In this study, a Ti composite reinforced with 5 vol. % (TiB w + TiC p ) was fabricated by an in situ casting route. Open die forging in (α + β) phase region was conducted on the composite casting. The microstructures of the as-forged composite pancake are inhomogeneous in terms of matrix microstructure and distribution of reinforcements. The matrix grains are gradually refined from the periphery to centre of the pancake. The reinforcements TiB w and TiC p tend to be uniformly distributed in the centre region. It is suggested that the microstructure difference can be mainly ascribed to the temperature variation from the periphery to the centre. The tensile testing results show that the centre region of the composite pancake exhibits higher strength than the peripheral region. The mechanical behaviour of the composite pancake with the temperature is discussed.

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Section: Microstructuresupporting

confidence: 77%

Section: Methodsmentioning

confidence: 99%

Section: Tensile Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Microstructural Characterization and Mechanical Properties of 5 vol. % (TiBw + TiCp)/Ti Composite Produced by Open-Die Forging

Han

Lü

Zhang

et al. 2018

Metals

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show abstract

“…Hence, the in-situ formation of reinforcement phases (e.g. TiB whiskers) is a fascinating trick to obtain an excellent interfacial bonding between the matrix and secondary phases [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Effects of in-situ formed TiB whiskers on microstructure and mechanical properties of spark plasma sintered Ti–B4C and Ti–TiB2 composites

2017

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Abstract. Monolithic titanium, Ti-1 wt% B 4 C, and Ti-2.5 wt% TiB 2 were spark plasma sintered at 1050 C for 5 min under 50 MPa. The e ects of B 4 C and TiB 2 additions on densi cation process, microstructural development, and mechanical properties of titanium were investigated. The results revealed that relative density of undoped as well as B 4 Cand TiB2-doped Ti samples reached s98-99%. X-ray di raction patterns, thermodynamic assessments, and microstructural investigations veri ed the in-situ formation of TiB whiskers in both composite samples as well as the appearance of TiC spheres in Ti-B 4 C composite. However, trace unreacted TiB2 and B4C additives remained in the composites as a result of incomplete chemical reactions due to short-time SPS process. Compared to undoped Ti sample, grain growth was hindered when the sample was doped by B4C or TiB 2 . Elongation, ultimate tensile strength, and Vickers hardness of B 4 C-or TiB 2 -doped samples were higher than those of monolithic titanium, but bending strength of ceramicdoped samples was signi cantly lower, compared to undoped titanium. These outcomes were discussed in detail and related to the presence/formation of several ceramic phases with di erent morphologies in Ti matrix.

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Ti‐Nb‐Ta‐Zr Alloys with Iron, Silicon and and Oxygen Content: Increasing Strength of Load‐Bearing Implants Material

Stráský¹,

Harcuba²,

Landa³

2016

Proceedings of the 13th World Conference on Titanium

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Evolution of microstructure and tensile properties of in situ titanium matrix composites with volume fraction of (TiB+TiC) reinforcements

Cited by 113 publications

References 35 publications

The Microstructural Characterization and Mechanical Properties of 5 vol. % (TiBw + TiCp)/Ti Composite Produced by Open-Die Forging

The Microstructural Characterization and Mechanical Properties of 5 vol. % (TiBw + TiCp)/Ti Composite Produced by Open-Die Forging

Effects of in-situ formed TiB whiskers on microstructure and mechanical properties of spark plasma sintered Ti–B4C and Ti–TiB2 composites

Ti‐Nb‐Ta‐Zr Alloys with Iron, Silicon and and Oxygen Content: Increasing Strength of Load‐Bearing Implants Material

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