THE KINETICS OF PHASE TRANSFORMATIONS DURING CONTINUOUS COOLING OF THE Ti6A14V ALLOY FROM THE SINGLE-PHASE β RANGE
THE KINETICS OF PHASE TRANSFORMATIONS DURING CONTINUOUS COOLING OF THE Ti6A14V ALLOY FROM THE SINGLE-PHASE β RANGE
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DOI：
10.2478/v10172-011-0077-x
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发表时间：
2011-01-01
影响因子：
0.6
通讯作者：
Dabrowski, R.
中科院分区：
文献类型：
--
作者：
Dabrowski, R.
该论文报道了对 α-β Ti6A14V 钛合金从 β 范围连续冷却过程中相变动力学的研究。从 1020 摄氏度以高于临界的速率冷却后，发生马氏体 β -> α 转变。在低于临界的速率下，除了马氏体反应之外，还发生扩散β->α转变。对在扩散转变范围内以不同速率冷却的样品进行金相检查，发现 a 相形态发生变化，从 7.3 至 0.015 ℃/s 冷却后的层状转变为 0.012 ℃/s 冷却后观察到的颗粒状。在膨胀曲线中也可以清楚地看到相变。
The paper reports on a study of the kinetics of phase transformations during continuous cooling of the alpha-beta Ti6A14V titanium alloy from the beta range. After cooling from 1020 degrees C at a rate higher than critical the martensitic beta -> alpha transformation occurred. At rates lower than critical in addition to the martensitic reaction also the diffusional beta -> alpha transformation took place. Metallographic examination of samples cooled at various rates within the range of diffusional transformations, revealed variations in the a phase morphology changing from lamellar, after cooling at between 7.3 and 0.015 degrees C/s, to granular, as observed after cooling at 0.012 degrees C/s. The phase transformations were also clearly seen in dilatometric curves.