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首页> 外文期刊>Philosophical Magazine Letters >Shape evolution of fcc Co-Fe precipitate particles during coarsening in a Cu matrix
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Shape evolution of fcc Co-Fe precipitate particles during coarsening in a Cu matrix

机译：铜基质中粗化过程中fcc Co-Fe沉淀颗粒的形状演变

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The shape evolution of fcc Co-Fe precipitate particles during coarsening in Cu-1.37 at.% Co-0.83 at.% Fe alloy single crystals has been examined by the transmission electron microscopy observation. Co-Fe particles change from sphere to cuboid and eventually flatten into a plate-like one with increasing particle size. The size-dependent equilibrium shapes of Co-Fe particles were discussed by considering the elastic strain energy of particles together with the interface energy between the particles and the matrix. To evaluate the elastic strain energy, elastically homogeneous but anisotropic particles with purely dilatational misfit strains are taken into account. The experimentally observed shape transition can be satisfactorily explained by the simple energy analysis.View full textDownload full textKeywordsCu-Co-Fe alloy, equilibrium shape, elastic anisotropy, elastic strain energy, interface energyRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09500839.2010.486755
机译：已经通过透射电子显微镜观察检查了在Cu-1.37at。％Co-0.83at。％Fe合金单晶中粗化过程中fcc Co-Fe沉淀颗粒的形状演变。 Co-Fe颗粒从球形变为长方体，最终随着颗粒尺寸的增加而扁平化成板状。通过考虑颗粒的弹性应变能以及颗粒与基体之间的界面能，讨论了Co-Fe颗粒的尺寸依赖性平衡形状。为了评估弹性应变能，考虑了具有纯膨胀失配应变的弹性均质但各向异性的颗粒。通过简单的能量分析可以令人满意地解释实验观察到的形状转变。查看全文下载全文关键词Cu-Co-Fe合金，平衡形状，弹性各向异性，弹性应变能，界面能相关var addthis_config = {ui_cobrand：“泰勒和弗朗西斯在线” ，services_compact：“ citeulike，netvibes，twitter，technorati，美味，linkedin，facebook，stumbleupon，digg，google，更多”，发布号：“ ra-4dff56cd6bb1830b”}；添加到候选列表链接永久链接http://dx.doi.org/10.1080/09500839.2010.486755

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