High tensile ductility of Ti-based amorphous matrix composites modified from conventional Ti–6Al–4V titanium alloy

Jeon, Changwoo; Kim, C.P.; Joo, Soo Hyun; Kim, H.S.; Lee, S.

doi:10.1016/j.actamat.2013.01.061

Cited by 59 publications

(42 citation statements)

References 35 publications

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“…It is generally accepted that the deformation behavior would be same or similar within effective dendrites. [14,39] Thus, the plastic deformation mechanism and resultant elongation are mainly dependent on the effective dendrite size.…”

Section: Discussionmentioning

confidence: 99%

“…FEM analyses of tensile tests were conducted to understand the influence of effective dendrite size on deformation and fracture mechanisms. [14] The FEM based on real microstructures has many advantages in comparison with a unit cell model approach, especially in prediction of nonuniform deformation in each phase, the so-called 'strain partitioning'. In this paper, in order to investigate effects of microstructure on tensile ductility of the Ti-based amorphous matrix composites, the FEM based on real microstructures obtained from EBSD results was employed.…”

Section: Methodsmentioning

confidence: 99%

“…pct, [13,21] and V and Al generally work as stabilizers of b and a phases, respectively, in Ti alloys. [13,14] The amount of V is relatively high to obtain sufficient dendrites of b phase in the present composite system. [13,14,20] Ni and Be are known to improve the amorphous forming ability.…”

Section: Methodsmentioning

confidence: 99%

“…[13,14] The amount of V is relatively high to obtain sufficient dendrites of b phase in the present composite system. [13,14,20] Ni and Be are known to improve the amorphous forming ability. [22,23] A master alloy was made by arc-melting in a watercooled copper crucible under a Ti-gettered argon atmosphere.…”

Section: Methodsmentioning

confidence: 99%

“…[9][10][11][12] If amorphous alloys containing a sufficient amount of ductile phases in the amorphous matrix are developed by utilizing conventional alloys such as a representative (a+b) Ti-6Al-4V alloy, the brittle fracture in amorphous alloys can be solved, together with an economical merit of the reduction in manufacturing costs. [13,14] Since major elements of the Ti-6Al-4V alloy are beneficially used for forming amorphous phase or b dendrites, [13][14][15][16] this manufacturing idea can be effectively utilized.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Effects of Effective Dendrite Size on Tensile Deformation Behavior in Ti-Based Dendrite-Containing Amorphous Matrix Composites Modified from Ti-6Al-4V Alloy

Jeon

Lee

Kim

et al. 2014

Metall Mater Trans A

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Five composite sheets having different thicknesses were fabricated by varying cooling rates after a vacuum arc melting of a Ti-based amorphous matrix composite fabricated by adding alloying elements of Ti, Zr, V, Ni, Al, and Be into a Ti-6Al-4V alloy. These composite sheets contained 72 to 75 vol. pct of dendrites sized by 9 to 27 lm, and showed excellent tensile properties of yield strength of 1.3 GPa and elongation up to 6.5 pct. According to the observation of tensile deformation behavior of the 3-mm-thick composite sheet, many deformation bands were formed inside dendrites in several directions, and deformation bands met crossly each other to form widely deformed areas. Since the wide and homogeneous deformation in this sheet beneficially worked for the tensile strength and elongation simultaneously, the optimum effective dendrite size (12.1 lm) and sheet thickness (3 mm) were determined for the Ti-based amorphous matrix composite. The finite element method (FEM) analysis based on real microstructures was also conducted to theoretically explain the enhanced elongation in terms of effective dendrite size. The shape and location of deformation bands estimated from the FEM simulations were well matched with the experimental observations.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of Effective Dendrite Size on Tensile Deformation Behavior in Ti-Based Dendrite-Containing Amorphous Matrix Composites Modified from Ti-6Al-4V Alloy

Jeon

Lee

Kim

et al. 2014

Metall Mater Trans A

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Low‐Density High‐Strength Bulk Metallic Glasses and Their Composites: A Review

et al. 2014

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This review gives an overview of the field of low-density (<6 g cm À3 ) bulk metallic glasses/composites and their potential engineering and space applications. The review focuses on four systems, Al-, Mg-, Ca-, and Ti-based metallic glass-forming systems. In the following sections, glass forming ability, mechanical properties, thermal stability, and corrosion resistance of the four metallic glass systems and their composites are presented.

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A Review on High‐Strength Titanium Alloys: Microstructure, Strengthening, and Properties

2019

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The authors review the recent advances in the development of high‐strength titanium alloys. First, they summarize conventional strengthening approaches and their mechanisms, thecorresponding microstructures, and the optimized mechanical properties. Subsequently, various strengthening strategies for high‐strength titanium alloys are discussed. Finally, examples of the successful development of high‐strength titanium alloys based on amorphous crystallization via solid and semi‐solid sintering are presented. The review of the interrelation between the microstructure, the strengthening, and the properties may provide significant insight into achieving novel high‐strength titanium alloys.

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High tensile ductility of Ti-based amorphous matrix composites modified from conventional Ti–6Al–4V titanium alloy

Cited by 59 publications

References 35 publications

Effects of Effective Dendrite Size on Tensile Deformation Behavior in Ti-Based Dendrite-Containing Amorphous Matrix Composites Modified from Ti-6Al-4V Alloy

Effects of Effective Dendrite Size on Tensile Deformation Behavior in Ti-Based Dendrite-Containing Amorphous Matrix Composites Modified from Ti-6Al-4V Alloy

Low‐Density High‐Strength Bulk Metallic Glasses and Their Composites: A Review

A Review on High‐Strength Titanium Alloys: Microstructure, Strengthening, and Properties

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