Semi-solid oxidation and deformation behavior of Ti14 alloy

Effect of semi-solid forging temperature on microstructure and mechanical properties of Ti14 alloy

“…However, the semi-solid processing behaviour of titanium alloys which are widely used in many fields has not been investigated. Most recently, some of the present authors [18,19] found that the semi-solid deformation of titanium alloys was quite different from those observations for conventionally processed materials, but no further work has been performed on the effects of semi-solid processing temperature on the microstructure and mechanical properties of this titanium alloy. The objectives of this work are to comprehensively investigate the microstructure evolution of Ti14 alloy (Ti-Al-Cu-Si, Cu > 10 wt.%) during SSF, and explain the influence of processing temperature on microstructure and mechanical properties after semi-solid forging.…”

Grain boundary characteristics and tensile properties of Ti14 alloy after semi-solid deformation

“…It is found that the precipitation and growth of Ti 2 Cu significantly depend on the distribution and volume fraction of liquids. In this study, more liquids segregate to the grain boundaries with the increase of forging temperature [13,[19][20], leading to the more Ti 2 Cu precipitating and growing on the grain boundaries to form precipitated zones, which is the main reason for coarse grain boundaries.…”

“…However, the semi-solid deformation and processing of titanium alloys have not been investigated yet. Most recently, some authors [13][14] have reported the semi-solid deformation of Ti14 alloys at 1000°C, which is quite different from the conventional one, but there is no further discussion on the microstructure evolution, especially the grain boundary characteristics of titanium alloys during the semi-solid processing. Compared with the conventional forging (CF), the purpose of this paper was to carry out a comprehensive study on the grain boundary characteristics and tensile properties of Ti14 alloy (Ti-1Al-13Cu-0.2Si) after semi-solid forging (SSF).…”

Characterization of semisolid deformation behavior and constitutive analysis of Ti230 alloy

“…However, the semisolid deformation behavior of titanium alloys, which is widely used in many fields, has not been investigated. Until recently, our research group Zhao et al (2004; reported that the semisolid deformation and semisolid oxidation of titanium alloy were quite different from the conventional one. In order to lucubrate the knowledge of compressive deformation characteristics of titanium alloy with different semisolid deformation parameters, in this paper, a comprehensive study was carried out to investigate the effect of deformation parameters, including temperature and strain rate, on compressive deformation behavior of Ti230 alloy (Ti-Al-Cu-Si, the Cu content is 2.5 %), which provides a basis for the application of titanium semisolid processing technology.…”