Hot deformation behavior of ZrTiAlV alloy with a coarse grain structure in the β phase field

Effect of initial grain size on the hot deformation behavior of 47Zr–45Ti–5Al–3V alloy

“…Sarkar and Chakravartty [16] reported that dynamic recrystallization occurred at the temperatures from 625 to 800°C and strain rate lower than 0.1 s À1 in the a + b phase field of Zr-1Nb alloy, while dynamic recovery occurred in the b phase field. The hot deformation behavior of 47Zr-45Ti-5Al-3V alloy with a coarse grain structure in the b phase field has been investigated [17]. It was found that the flow behavior of this alloy was different from that of the other Zr alloys [12,15,18], but similar to that of Ti-alloys [19][20][21].…”

“…There is extensive research on the hot deformation behavior of Zr and Zr alloys for determination of the optimum hot working condition [10][11][12][13][14][15][16][17]. Chakravartty et al [10,11] found that dynamic recrystallization occurred in commercially pure a-Zr deformed in the temperatures range of 730-850°C and 10 À2 to 1 s À1 and Zircaloy-2 deformed at temperatures from 730 to 830°C and strain rates from 10 À2 to 2 s À1 .…”

Preparation of low cost TiZrAlFe alloy with ultra-high strength and favorable ductility

“…Tan [33,34] has also reported the similar result that the dynamic recrystallization presents in TiZr based alloys during hot deformation. However, most blocky β grains 8 / 18 appproximate 50 μm are observed in the F20 alloy.…”

Hot deformation behavior of 51.1Zr–40.2Ti–4.5Al–4.2V alloy in the single β phase field

“…In Zr-1Nb alloy, dynamic recrystallization occurred in the temperature range from 625 to 800 1C and strain rates lower than 0.1 s À 1 in the α and αþ β phase field, and dynamic recovery occurred in the β phase field [17]. For 47Zr-45Ti-5Al-3V alloy, dynamic recovery occurred at low temperatures and high strain rates, whereas dynamic recrystallization occurred at high temperatures and low strain rates in the β phase field [18]. Moreover, a dramatic phenomenon of stress drop was observed in the 47Zr-45Ti-5Al-3V alloy.…”

“…There are many researches on the hot deformation behavior of Zr alloys [12][13][14][15][16][17][18][19]. In commercially pure α-Zr, dynamic recrystallization occurred in the temperature range from 730 to 850 1C and strain rate range from 10 À 2 to 1 s À 1 [12].…”