J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (11): 2652-2657.DOI: 10.1016/j.jmst.2019.05.061
• Orginal Article • Previous Articles Next Articles
Xu H.ab, Li X.B.a*(), Xing W.W.a, Shu L.a, Ma Y.C.a*(), Liu K.a
Received:
2018-11-24
Revised:
2019-01-24
Accepted:
2019-05-15
Online:
2019-11-05
Published:
2019-10-21
Contact:
Li X.B.,Ma Y.C.
About author:
1The authors equally contributed to this work.
Xu H., Li X.B., Xing W.W., Shu L., Ma Y.C., Liu K.. Solidification pathway and phase transformation behavior in a beta-solidified gamma-TiAl based alloy[J]. J. Mater. Sci. Technol., 2019, 35(11): 2652-2657.
Ti | Al | Mn | O |
---|---|---|---|
Bal. | 42.0 at.% | 5.0 at.% | 580 ppm |
Table 1 Chemical composition of the Ti-42Al-5 Mn alloy.
Ti | Al | Mn | O |
---|---|---|---|
Bal. | 42.0 at.% | 5.0 at.% | 580 ppm |
Fig. 2. EPMA and TEM results of the Ti-42Al-5 Mn alloy: (a) as-cast microstructure; EPMA result of (b) Ti, (c) Al, (d) Mn; (e) TEM result of the lamellae.
Fig. 5. WQ microstructure at different temperatures of Ti-42Al-5 Mn alloy: (a) 1040 °C; (b) 1120 °C; (c) 1140 °C; (d) 1180 °C; (e) 1220 °C; (f) 1240 °C; (g) 1260 °C; (h) 1300 °C; (i) 1320 °C; (j) 1380 °C.
Fig. 6. Phase fraction results of β, α, γ and L (L stands for lamellae) related to the temperatures from 1000 °C to 1380 °C of the Ti-42Al-5 Mn alloy.
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