Development of microstructure and texture in pure shear deformed salt
Development of microstructure and texture in pure shear deformed salt
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纯剪切变形盐的微观结构和织构的发展
DOI：
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发表时间：
1998
影响因子：
1.5
通讯作者：
Hanna Brockmeier
中科院分区：
文献类型：
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作者：
W. Skrotzki;H.;K. Heiming;R. Tamm;Hanna Brockmeier
用中子衍射法研究了盐岩挤压过程中的织构演化。纯剪切变形产生的织构成分接近理想的面心立方金属铜、S、黄铜、戈斯和立方位置。通过动态和静态再结晶强化了GoSS和Cube成分，其中Cube最稳定。实验织构与基于不同模型的模拟结果的比较表明，采用临界剪切应力相同的(110)、(100)和(111)晶系的Taylor模型可以很好地解释低温高应变变形织构。随温度升高的弛豫引入了立方和GaS组分，它们可能代表了再结晶的形核。
Texture development in extruded rock salt has been studied by neutron diffraction. Pure shear deformation yields texture components near the ideal FCC metal copper, S, brass, Goss and cube positions. The Goss and Cube components are strengthened by dynamic and static recrystallization with cube being most stable. Comparison of the experimental textures with simulations based on different models shows that the low temperature high strain deformation texture can be qualitatively well explained by the Taylor model using slip on (110) , (100) and (111) systems with equal critical resolved shear stresses. Relaxation with increasing temperature introduces the cube and Goss component, which may represent the nuclei for recrystallization.