Microstructural effects on the mechanical behavior of B-modified Ti–6Al–4V alloys

Sen, Indrani; Tamirisakandala, Seshacharyulu; Miracle, D.B.; Ramamurty, Upadrasta

doi:10.1016/j.actamat.2007.05.009

Cited by 401 publications

(136 citation statements)

References 14 publications

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“…The fracture (2), (4) and (6)] associated with tension stress, and a rapid propagation region (interior bending region) , (3), and (5)] associated with compression stress. This phenomenon has been evaluated for various materials by characterization of the relationship between the crack growth fatigue cycle, da/dN, and the stress intensity factor range, ∆K 14,15) . The areas of crack initiations of the Resolve and Gummetal are shown by the arrows.…”

Section: Resultsmentioning

confidence: 99%

High-cycle fatigue behavior of beta-titanium orthodontic wires

et al. 2015

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This study investigated high-cycle fatigue behavior in three β-Ti wires (TMA, Resolve, Gummetal). Fatigue was evaluated using a static three-point bending test and a high-cycle fatigue test with a three-point bending mode. The surfaces of fractured wires were observed with scanning electron microscopy, and the post-fatigue crystal structures were determined by micro-X-ray diffraction. The Gummetal wire exhibited the lowest elastic modulus, bending strength and fatigue limit, and exhibited the highest resilience of the three types of wire studied. However, no difference in the number of cycles to failure was observed among the three types of wire. The fatigue crack propagation and rapid propagation regions of all wires contained single-phase β-Ti. The elastic modulus and bending strength influenced the fatigue limit, although these properties did not affect the number of cycles to fracture. The three types of β-Ti wires exhibited similar risks of wire fracture.

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Section: Resultsmentioning

confidence: 99%

High-cycle fatigue behavior of beta-titanium orthodontic wires

et al. 2015

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“…In the biomedical industry, they are highly considered due to its high specific strength and excellent biocompatibility [274], where can substitute hard tissues [275]. In aerospace structures and propulsion systems, this alloys is commonly used due to the exceptional combination of mechanical and corrosion properties, associated with low weight [276]. Ti6Al4V can also be used in both chemical/acid, marine and industrial environments, due to is ability to form a protective oxide in a significant range of temperatures [277].…”

Section: Niti/ti6al4vmentioning

confidence: 99%

Welding and Joining of NiTi Shape Memory Alloys: A Review

Oliveira

Miranda

Fernandes

2017

Progress in Materials Science

272

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“…17) The networkboundary strengthening mechanism is viewed as an effective factor in tailoring the high temperature properties, 11) and thus the network boundary containing TiB w still plays an important role in strengthening the joint. In addition, TiB has good interfacial bonding with the titanium 1) and strengthens the joint through the load transfer mechanism, 13) by which TiB is loaded in tension through the shear stress along the well bonded whisker/matrix interfaces.…”

Section: Elevated Mechanical Propertiesmentioning

confidence: 99%

Temperature Dependence of Tensile Properties and Fracture Behavior of Welded Joints of Titanium Matrix Composites in Gas Tungsten Arc Welding

et al. 2013

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The characteristics of gas tungsten arc weldments of in-situ reinforced titanium matrix composites were investigated, and the joint quality was evaluated by means of weld morphology, microstructure and tensile tests. With an increase of welding process parameters, sound welded joints were fabricated. The weld zone had a refinement microstructure and TiB w exhibited smaller sizes and dispersed distribution, forming a novel network structure in the weld. Tensile tests indicated that the weld presented excellent high temperature strengths, even superior to the base metal under the welding conditions. The welded joints displayed a slower downtrend in strength than that of base metal with an increase of temperature, and the elongation values of joints were higher than the base metal because of the refined grain microstructure and dispersed distribution of TiB w in the weld. The strengthening mechanism of high temperature properties of welded joints is ascribed to smaller sizes and network structure of TiB w in the weld. The fracture surfaces of butt joints for TMCs include the hybrid ductile of matrix and brittle fracture/ decohesion of TiB w at different temperatures.

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Microstructural effects on the mechanical behavior of B-modified Ti–6Al–4V alloys

Cited by 401 publications

References 14 publications

High-cycle fatigue behavior of beta-titanium orthodontic wires

High-cycle fatigue behavior of beta-titanium orthodontic wires

Welding and Joining of NiTi Shape Memory Alloys: A Review

Temperature Dependence of Tensile Properties and Fracture Behavior of Welded Joints of Titanium Matrix Composites in Gas Tungsten Arc Welding

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