Effects of microstructures on the notch tensile fracture feature of heat-treated Ti–6Al–6V–2Sn alloy

Huang, Ruey‐Shing; Huang, W. B.; Huang, Rong‐Hsin; Tsay, L.W.

doi:10.1016/j.msea.2013.12.024

Cited by 16 publications

(5 citation statements)

References 16 publications

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“…In accordance with the results presented for Fig. 5, nucleation of  at the boundary of ʺ martensite packets was observed upon long term aging of an analogous condition of the 15 studied alloy at 482 ºC [26]. Similarly, in a previous work with a Ti-22 wt.% Ta alloy ([Mo] eq = 4.4 wt.%) precipitation and growth of  was reported to occur as disc-shaped particles along twin boundaries of ʺ martensite [30].…”

Section: Kinetics and Precipitation Features During ʺ   Transforma...supporting

confidence: 91%

“…3). Accordingly, previous investigations with an analogous condition of the studied alloy reported no detection of this phase using TEM or XRD [26]. Also, a complete transformation of  to ʺ martensite was 14 observed upon water quenching of a Ti-4Mo wt.% alloy with nearly equal [Mo] eq content [27].…”

Section: This Representation Permits Thorough Analysis Of the Early F...mentioning

confidence: 78%

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Tracking the αʺ martensite decomposition during continuous heating of a Ti-6Al-6V-2Sn alloy

et al. 2017

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Section: Kinetics and Precipitation Features During ʺ   Transforma...supporting

confidence: 91%

Section: This Representation Permits Thorough Analysis Of the Early F...mentioning

confidence: 78%

Tracking the αʺ martensite decomposition during continuous heating of a Ti-6Al-6V-2Sn alloy

et al. 2017

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“…Yan et al 8 found that acicular alpha precipitates in the beta phase and grain boundary alpha-beta-alpha layered structures both increased the material strength but sacrificing much plasticity. The other one is coarse alpha 1 beta colony structure with increasing aging temperature would increase the tensile strength while keeping the material ductility using the supratransus-processed and subtransus-processed methods, as reported by Huang et al 9 Various processing methods are applied in improving the comprehensive mechanical property to facilitate the usability and processability in material engineering. While it is not ideal that high-temperature and multiprocedure processing methods increased the producing cost of the materials and also may deteriorate the material mechanical properties, especially strength, due to incorrect temperature control processing.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and tensile fracture of Ti–Al–V alloy strip under electropulsing-induced phase change

Tse

Tang

2014

J. Mater. Res.

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The effect of high-energy electropulsing treatment (EPT) on the microstructure evolution, mechanical properties, and fracture behavior of as-treated Ti-6Al-4V alloy strips was investigated. EPT was found to accelerate phase transition and microstructure evolution of quasi-single-phase titanium alloy strips at a relatively low temperature, and obtain characteristic duplex microstructure and Widmanstatten microstructure. The EPT-induced microstructural changes increased elongation-to-failure remarkably with a slight decrease in tensile strength. Fracture surface observation and three-dimensional analysis showed that transition from small-shallow dimple colony to big-deep colony fracture took place with an increase in frequency of EPT. The rapid phase change of the Ti-6Al-4V alloy strip under EPT was attributed to the enhancement of nucleation rate and atomic diffusion resulting from the coupling of the thermal and athermal effects. It is supposed that EPT can provide a highly efficient method for the intermediate-softening annealing of titanium alloy sheet/strips.

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“…In recent years, for Ti-6Al-6V-2Sn alloy, the element partitioning and phase transformation during continuous heating [10,11] and notched fracture behavior have been studied [12]. How heat treatments affect the bimodal microstructure of Ti-6Al-6V-2Sn alloy and its mechanical properties is still not completely clear.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Treatment on Microstructure and Tensile Property of Ti-6Al-6V-2Sn Alloy

Wang

Lei

et al. 2021

Metals

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The microstructure and tensile properties of Ti-6Al-6V-2Sn alloy heat-treated at different solution and aging temperatures has been systematically investigated. Specimens were solution-treated at 970 °C (above the β transus) and 920 °C (below the β transus), respectively, followed by water quenching. When the alloy is quenched from 970 °C, α’ (hcp) and α˝ (orthorhombic) martensite phases co-exist in the microstructure. When it is quenched from 920 °C, α´ martensite phase does not form, while equiaxial primary α (αp) phase and α˝ are found in the microstructure. The results also show that the strength of the alloy increases but the ductility deteriorates as the solution temperature becomes higher when the aging treatment is unchanged. This is because the volume fraction of equiaxial αp phase is lower but the volume fraction of the acicular secondary α (αs) phase is higher for higher solution temperature. When the alloy is aged at different temperatures after the solution treatment at 900 °C, the strength of the alloy decreases with the increase of aging temperature and the ductility shows the opposite trend as the size of the acicular αs becomes longer and its volume fraction is lower at higher aging temperature.

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Effects of microstructures on the notch tensile fracture feature of heat-treated Ti–6Al–6V–2Sn alloy

Cited by 16 publications

References 16 publications

Tracking the αʺ martensite decomposition during continuous heating of a Ti-6Al-6V-2Sn alloy

Tracking the αʺ martensite decomposition during continuous heating of a Ti-6Al-6V-2Sn alloy

Mechanical properties and tensile fracture of Ti–Al–V alloy strip under electropulsing-induced phase change

Effect of Heat Treatment on Microstructure and Tensile Property of Ti-6Al-6V-2Sn Alloy

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