Grain Boundary Wetting by a Second Solid Phase in Ti-Fe Alloys

被引：0
作者：
A. S. Gornakova
B. B. Straumal
A. N. Nekrasov
A. Kilmametov
N. S. Afonikova
机构：
[1] Russian Academy of Sciences,Institute of Solid State Physics
[2] Karlsruher Institut für Technologie,Institut für Nanotechnologie
[3] National University of Science and Technology « MISIS»,Institute of Experimental Mineralogy
[4] Russian Academy of Sciences,undefined
来源：
Journal of Materials Engineering and Performance | 2018年 / 27卷
关键词：
grain boundaries; phase transitions; titanium alloys; wetting;
D O I：
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摘要：
The microstructure of Ti-Fe polycrystals has been studied between 595 and 815 °C in the concentration interval between 1 and 9 wt.% Fe. In these conditions, two phases, namely hexagonal α(Ti, Fe) and cubic β(Ti, Fe), are in equilibrium. The α(Ti, Fe) phase forms either continuous or discontinuous layers in the β(Ti, Fe)/β(Ti, Fe) grain boundaries (GBs). Continuous layers correspond to the complete wetting of β(Ti, Fe)/β(Ti, Fe) GBs by a second solid phase α(Ti, Fe). Discontinuous layers correspond to the incomplete (or partial) GB wetting by a second solid phase. The temperature dependences of the portion of completely wetted GBs as well as that of the thickness of continuous GB layer of α(Ti, Fe) phase have been measured. Both values monotonously increase with increasing temperature.
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页码：4989 / 4992
页数：3
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