首页> 外文会议>Transformation problems in composite and active materials >Fourier transforms and their application to the formation of textures and changes of morphology in solids
【24h】

Fourier transforms and their application to the formation of textures and changes of morphology in solids

机译:傅立叶变换及其在固体纹理形成和形态变化中的应用

获取原文
获取原文并翻译 | 示例

摘要

The presence of inhomogeneities in solids very frequently leads to the generation of eigenstresses and eigenstrains. One particular example is provided by ceramic materials reinforced with Zirconias particles which undergo phase transformations accompanied by a change in shape and volume (e.g., Stevens, 1996). Another example arises in Ni-base superalloys where a so-called #gamma#'-phase forms in a #gamma# -phase matrix. The lattice parameters of both phases are different and, consequently, high internal stresses and strains occure near the coherent interface boundary (see, e.g., Hazotte et al., 1992, or Hazotte and Lacaze, 1994). Moreover, in both cases, externally superimposed mechanical stresses may locally trigger a phase transformation and, over time, lead to morphological changes of the microstructure.
机译:固体中不均匀性的存在非常经常导致特征应力和特征应变的产生。一个特定的例子是用氧化锆颗粒增强的陶瓷材料,它们经历相变并伴随着形状和体积的变化(例如,Stevens,1996)。另一个例子出现在镍基高温合金中,其中所谓的#γ#相在#γ#相矩阵中形成。两相的晶格参数是不同的,因此,在相干界面边界附近会出现高内应力和应变(参见,例如,Hazotte等,1992,或Hazotte和Lacaze,1994)。此外,在两种情况下,外部叠加的机械应力可能会局部触发相变,并随着时间的流逝导致微观结构的形态变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号