Coarsening Kinetics of Al3Sc Precipitates in an Al–Mg–Sc Alloy Aged at 573 K
Coarsening Kinetics of Al3Sc Precipitates in an Al–Mg–Sc Alloy Aged at 573 K
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573 K 时效 Al-Mg-Sc 合金中 Al3Sc 沉淀的粗化动力学
DOI：
10.2320/matertrans.mrp2007048
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
R. Monzen
中科院分区：
文献类型：
--
作者：
D. Watanabe;C. Watanabe;R. Monzen
用Kuehmann和Voorhees建立的模型研究了Al-1质量%Mg-0.27质量%Sc合金在573K时效时Al3Sc相的粗化。用透射电子显微镜测定了Al3Sc析出物的平均尺寸，并用电阻率法测量了Sc在基体中的浓度。动力学分析表明，在粗化阶段开始之前，存在形核和生长、生长和粗化的混合阶段。仅从粗化数据估算出Al/Al3Sc的共格界面能y为0.23Jm-2。从共格界面到半共格界面的转变不会引起y的变化。
The coarsening of Al 3 Sc precipitates in an Al-1 mass%Mg-0.27 mass%Sc alloy aged at 573K has been examined using a model developed by Kuehmann and Voorhees. The average size of Al 3 Sc precipitates was evaluated by transmission electron microscopy and electrical resistivity was employed to measure the Sc concentration in the matrix. Kinetic analyses revealed that before the onset of a coarsening stage, there exist mixed stages of nucleation and growth and of growth and coarsening. The coherent Al/Al 3 Sc interface energy y is estimated as 0.23 Jm -2 from data on coarsening alone. The transition from a coherent interface to a semi-coherent interface caused no change in y.
产生生长激素的垂体腺瘤术后照射 18 年后肉瘤转化
DOI：
--
发表时间：
2018
期刊：
影响因子：
--
作者：
岡田正康;米岡有一郎;大石誠;藤井幸彦
通讯作者：
藤井幸彦