2015
DOI: 10.1007/s10853-015-9120-z
|View full text |Cite
|
Sign up to set email alerts
|

Morphology evolution of α phase in investment cast titanium matrix composites with B4C additions

Abstract: Titanium matrix composites were prepared by investment casting in a consumable arc skull casting furnace. With the addition of B 4 C, the average primary b grains are refined, and the morphology of a phase tends to be more equiaxed. The free energy for nucleation consisting of the bulk free energy, orientation-independent interfacial energy, and elastic strain energy is calculated to investigate the role of nucleation sites in determining the shape of critical nucleus. In the current study, the TiB whiskers we… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

0
3
0

Year Published

2016
2016
2024
2024

Publication Types

Select...
5
1

Relationship

0
6

Authors

Journals

citations
Cited by 20 publications
(3 citation statements)
references
References 34 publications
0
3
0
Order By: Relevance
“…3(a)). What's more, a substantial decrease in α colony size is observed, due to the addition of B 4 C. The formation of fine and orientated α represented by color variations could be attributed to the TiB whiskers which have various orientations and act as nucleation sites for α phases [19]. The experimental stress-strain curves of the Ti-64 and TMCs at ambient temperature are shown in Fig.…”
Section: Resultsmentioning
confidence: 93%
“…3(a)). What's more, a substantial decrease in α colony size is observed, due to the addition of B 4 C. The formation of fine and orientated α represented by color variations could be attributed to the TiB whiskers which have various orientations and act as nucleation sites for α phases [19]. The experimental stress-strain curves of the Ti-64 and TMCs at ambient temperature are shown in Fig.…”
Section: Resultsmentioning
confidence: 93%
“…The synthesis of thermodynamically stable in-situ reinforcements, such as TiB and TiC in β titanium matrix, increases strength and hardness, but ductility decreases depending on the volume of pre-cipitates. The ductility decrement can be affected on a smaller degree with heat treatments and formation of fine α phase, where the cooling rate from temperatures above β transus plays an important role on the final morphology of α precipitates, as equiaxial shape has been reported after slow cooling of titanium matrix composites based on Ti-6Al-4V, needle-like shape [12,13], and Widmanstätten colonies have also been reported after aging [14].…”
Section: Introductionmentioning
confidence: 99%
“…In terms of the reinforcements in TMCs, TiC has been considered as one of the effective reinforcements since TiC with excellent properties can be compatible with Ti matrices [5][6][7]. Combustion assisted cast (CAC) have been widely used to fabricate in situ synthesized TMCs due to its obvious advantages such as direct casting forming, simplicity, the low fabrication cost and excellent interfacial system [8][9][10].…”
Section: Introductionmentioning
confidence: 99%