Anisotropic behavior and mechanical properties of Ti-6Al-4V alloy in high temperature deformation

Gao, Song; He, Tonggui; Li, Qihan; Ying-li, Sun; Sang, Ye; Wu, Yuhang; Liu, Ying

doi:10.1007/s10853-021-06569-8

Cited by 11 publications

(4 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Temperature is widely acknowledged as a critical factor that significantly impacts the performance in the fabrication of components [ 26 , 27 , 28 ]. The β phase transformation temperature was about 950 °C, which was measured using the metallographic method.…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

“…As is shown in Figure 1, the Ti-5Al-1.5Mo-1.8Fe alloy had an initial microstructure with a widmanstätten morphology, where elongated α grains with a large aspect ratio were tightly packed within primary β grains. Temperature is widely acknowledged as a critical factor that significantly impacts the performance in the fabrication of components [26][27][28]. The β phase transformation temperature was about 950 • C, which was measured using the metallographic method.…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of the Forging Process on the Microstructure and Mechanical Properties of a New Low-Cost Ti-5Al-1.5Mo-1.8Fe Alloy

et al. 2023

Materials

View full text Add to dashboard Cite

This paper presents results on the microstructure and mechanical properties of a new low-cost titanium alloy Ti-5Al-1.5Mo-1.8Fe after different forging processes. The β phase transformation temperature of this alloy was 950 °C. In this study, the forging temperatures were designed at 920 °C and 980 °C, and the deformation degree ranged from 20% to 60%, with an interval of 20%. This study investigated the impact of the equiaxed α phase and shape of the lamellar microstructure on the tensile characteristics and fracture toughness of an alloy. The research employed a microstructure analysis and static tensile testing to evaluate the effect of forging temperatures and degree of deformation on the microstructure features. The findings revealed that forging temperatures could modify the microstructure characteristics, and the degree of deformation also affected this microstructure. This study demonstrates that a bimodal structure with an equiaxed α phase can be utilized to balance high strength and high ductility, resulting in better overall mechanical properties.

show abstract

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

The Effect of the Forging Process on the Microstructure and Mechanical Properties of a New Low-Cost Ti-5Al-1.5Mo-1.8Fe Alloy

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

“…Titanium and its alloys find widespread applications in aerospace, advanced manufacturing, nuclear industries, and chemical engineering due to their low density, high strength, exceptional plasticity, remarkable corrosion resistance, and biocompatibility [1][2][3][4][5][6][7][8] . In-depth research and analysis of the microstructure, structure, and mechanical processing performance of titanium alloys are essential.…”

Section: Introductionmentioning

confidence: 99%

Research and Analysis of TC4 Titanium Alloy Cutting Based on Crystal Plasticity Theory

He,

Tang,

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Based on the crystal plasticity theory, the changes in TC4 titanium alloy before and after cutting, especially the changes in cutting forces, chip temperature, morphology, and quality, were analyzed in this study. Initially, a polycrystalline plasticity model for the TC4 titanium alloy was established. Following that, a crystal plasticity polycrystal finite element cutting simulation model is developed to perform cutting simulations. This model represents the mechanical behavior of the micro grains of TC4 titanium alloy during the deformation and cutting processes. Further, it validates the internal grain plastic deformation and the effect on the metallography of TC4 titanium alloy before and after cutting. The results show a good consistency between experimental and simulation data. The grain size increases gradually from the center to the edge of the cutting area, with the phenomenon of equiaxed grains becoming more apparent, leading to the formation of elongated fine grains. During the cutting process, grains interlock and fracture, exhibiting strong anisotropy.

show abstract

“…The relationship between the mechanical properties, phase transformation and grain size evolution of titanium alloys at different heating temperatures has been studied [ 13 , 14 ]. Compared to the extensive research on the forming temperature, studies on the heating rate effect on the hot forming of titanium alloy sheets are limited to date.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heating on Hot Deformation and Microstructural Evolution of Ti-6Al-4V Titanium Alloy

Zhu

et al. 2023

Materials

View full text Add to dashboard Cite

This paper presents a systematic study of heating effects on the hot deformation and microstructure of dual-phase titanium alloy Ti-6Al-4V (TC4) under hot forming conditions. Firstly, hot flow behaviors of TC4 were characterized by conducting tensile tests at different heating temperatures ranging from 850 °C to 950 °C and heating rates ranging from 1 to 100 °C/s. Microstructure analysis, including phase and grain size, was carried out under the different heating conditions using SEM and EBSD. The results showed that when the heating temperature was lower than 900 °C, a lower heating rate could promote a larger degree of phase transformation from α to β, thus reducing the flow stress and improving the ductility. When the temperature reached 950 °C, a large heating rate effectively inhibited the grain growth and enhanced the formability. Subsequently, according to the mechanism of phase transformation during heating, a phenomenological phase model was established to predict the evolution of the phase volume fraction at different heating parameters with an error of 5.17%. Finally, a specific resistance heating device incorporated with an air-cooling set-up was designed and manufactured to deform TC4 at different heating parameters to determine its post-form strength. Particularly, the yield strength at the temperature range from 800 °C to 900 °C and the heating rate range from 30 to 100 °C/s were obtained. The results showed that the yield strength generally increased with the increase of heating temperature and the decrease of heating rate, which was believed to be dominated by the phase transformation.

show abstract

Anisotropic behavior and mechanical properties of Ti-6Al-4V alloy in high temperature deformation

Cited by 11 publications

References 52 publications

The Effect of the Forging Process on the Microstructure and Mechanical Properties of a New Low-Cost Ti-5Al-1.5Mo-1.8Fe Alloy

The Effect of the Forging Process on the Microstructure and Mechanical Properties of a New Low-Cost Ti-5Al-1.5Mo-1.8Fe Alloy

Research and Analysis of TC4 Titanium Alloy Cutting Based on Crystal Plasticity Theory

Effect of Heating on Hot Deformation and Microstructural Evolution of Ti-6Al-4V Titanium Alloy

Contact Info

Product

Resources

About