Texture Gradient in ECAP Silver Measured by Synchrotron Radiation
Texture Gradient in ECAP Silver Measured by Synchrotron Radiation
复制标题
通过同步加速器辐射测量 ECAP 银中的纹理梯度
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
L. Toth
中科院分区：
文献类型：
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作者：
W. Skrotzki;N. Scheerbaum;C. Oertel;H. Brokmeier;S. Suwas;L. Toth
通过使用路线A的三道次的等通道角挤压（ECAP），在室温下使3 N纯度的银变形。用中子衍射和高能同步辐射研究了薄膜的整体织构和局部织构。织构的特征是典型的fcc金属的简单剪切分量，不同程度地偏离其理想位置。局部纹理测量结果表明，相对于挤出方向的纹理分量的强度和倾斜度取决于从挤出棒的顶部的距离，并从通过到通过改变。讨论了织构梯度产生的原因。将银的织构与具有较高堆垛层错能的铜的织构进行比较。
Silver of 3N purity was deformed at room temperature by equal channel angular pressing (ECAP) using three passes of route A. The global and local texture were investigated by neutron diffraction and high-energy synchrotron radiation, respectively. The texture is characterized by typical simple shear components of fcc metals which differently deviate from their ideal positions. Local texture measurements reveal that the intensity and inclination of the texture components with respect to the extrusion direction depend on the distance from the top of the extruded bar and change from pass to pass. Reasons for the texture gradient are discussed. The texture of silver is compared with that of copper having a higher stacking fault energy.