NEAR SURFACE TRANSFORMATIONS: AN EXAMPLE OF DRIVEN PHASE TRANSFORMATIONS

机译：近表面转变：驱动相变的一个例子

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The concept of driven alloys is introduced and examples are given for alloys under irradiation or under high energy ball milling. Both natural and computer experiments show that the stationary configuration of the alloy under external forcing depends on the overall temperature, on the ratio of the ballistic to the thermally activated atomic jump frequency, and on the space and time correlation of the ballistic jumps. From the practical point of view, two control parameters are the overall temperature and the intensity of forcing: the latter is the irradiation flux for alloys under irradiation and the momentum transferred to an elementary volume of matter per unit time, under milling. We show how to use these concepts to address the wear rate of train wheels.

机译：介绍了驱动合金的概念，并给出了在辐射或高能球磨条件下的合金实例。自然和计算机实验均表明，合金在外力作用下的静态构型取决于整体温度，弹道与热活化原子跃变频率的比值以及弹道跃迁的时空相关性。从实用的角度来看，两个控制参数是整体温度和强迫强度：后者是合金在辐照下的辐照通量和在铣削下每单位时间转移到基本物质体积的动量。我们展示了如何使用这些概念来解决火车车轮的磨损率。

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来源
《Leeds-Lyon Symposium on Tribology; 20000905-08; Lyon(FR)》|2000年|P.429-438|共10页
会议地点 Lyon(FR)
作者
L. Chaffron; G. Martin;
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作者单位

Section de Recherches de Metallurgie Physique, Commissariat a l'Energie Atomique, Centre de Saclay, 91191 Gif sur Yvette Cedex, FRANCE;

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会议组织
原文格式 PDF
正文语种 eng
中图分类机械摩擦、磨损与润滑;
关键词
driven alloys; irradiation; ball milling; train wheels; lyapunov functions; stochastic potentials; dislocations; phase separation;

机译：合金；辐照；球磨；火车轮； lyapunov函数；随机势；位错；相分离;

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NEAR SURFACE TRANSFORMATIONS: AN EXAMPLE OF DRIVEN PHASE TRANSFORMATIONS

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