Equal Channel Angular Extrusion of Porous Billets: Computer Simulation and Experimental Study

机译：多孔钢坯的等通道角挤压：计算机模拟和实验研究

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The equal-channel angular extrusion is considered as a method of shear assisted densification. Unlike well-known aims of equal-channel angular extrusion for compacts, main problem for PM materials is to obtain a dense material with ultra fine structure. Different straining ways combining the hydrostatic and shear components are examined. In framework of extended plasticity theory for compressible bodies which is sensitive to pores nucleation, the specialties of swelling, shear bands and cracks formations are analyzed. Fields of hardness and relative density defined by finite element method are corresponding to those obtained experimentally. The formation of fields, possible ways of densification, providing the prevention of macro-cracking and coarsening are noted.

机译：等通道角挤压被认为是剪切辅助致密化的一种方法。与用于压块的等通道角挤压的众所周知的目标不同，粉末冶金材料的主要问题是要获得具有超细结构的致密材料。研究了结合静水力和剪切力的不同应变方式。在对孔隙成核敏感的可压缩物体的扩展塑性理论的框架下，分析了膨胀，剪切带和裂纹形成的特殊性。通过有限元方法定义的硬度和相对密度的字段与实验获得的相对应。指出了场的形成，可能的致密化方式，可以防止宏观裂纹和粗化。

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来源
《Powder metallurgy world congress amp; exhibition》|2010年|p.665-670|共6页
会议地点 Florence(IT);Florence(IT)
作者
Maydanyuk A.; Shtern M.; Bagluck G.; Ryabicheva L.;
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作者单位

Frantsevich Institute for Problems of Materials Science,Krzhizhanovsky street, 3, Kyiv-142, Ukraine, 03680;

rnFrantsevich Institute for Problems of Materials Science,Krzhizhanovsky street, 3, Kyiv-142, Ukraine, 03680;

rnFrantsevich Institute for Problems of Materials Science,Krzhizhanovsky street, 3, Kyiv-142, Ukraine, 03680;

rnEast Ukrainian Volodymyr Dahl National University,Molodiozhny block, 20a, Lugansk, 91034, Ukraine;

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原文格式 PDF
正文语种 eng
中图分类粉末冶金（金属陶瓷工艺）;
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1. Numerical Simulation of Semi-solid Billet Preparation by Equal Channel Angular Extrusion [J] . Xiaohua Zhang, Yanying Zhang, Dezhong Wu, Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena . 2008,第0期

机译：等通道角挤压制备半固态坯料的数值模拟
2. Experimental and numerical comparison of equal channel angular extrusion (ECAE) with planar twist channel angular extrusion (PTCAE) [J] . Shamsborhan Mahmoud, Shokuhfar Ali, Nejadseyfi Omid, Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science . 2015,第16期

机译：等通道角挤压（ECAE）与平面扭曲通道角挤压（PTCAE）的实验和数值比较
3. Predicting of Sn11Sb5.5Cu babbitt fracture using computer simulation at equal-channel angular extrusion [J] . A. Kh. Valeeva, A. Kh. Akhunova, I. Sh. Valeev Letters on Materials . 2018,第2期

机译：等通道角挤压下计算机模拟Sn11Sb5.5Cu巴氏合金的断裂预测
4. Equal Channel Angular Extrusion of Porous Billets: Computer Simulation and Experimental Study [C] . Maydanyuk A., Shtern M., Bagluck G., Powder metallurgy world congress exhibitionPM . 2010

机译：多孔钢坯的等通道角挤出：计算机仿真和实验研究
5. Analysis of strain distribution in equal channel angular extrusion by finite element method simulation and experimental validation [D] . Pond, Brett 2006

机译：等通道角挤压中应变分布的有限元模拟与实验验证
6. Wear Behavior and Microstructure of Mg-Sn Alloy Processed by Equal Channel Angular Extrusion [O] . Jung-Hsuan Chen, Yen-Chen Shen, Chuen-Guang Chao, 2017

机译：等通道角挤压Mg-Sn合金的磨损行为与组织
7. Computer Simulation and Optimization of Equal Channel Angular Extrusion of AZ31 Magnesium Alloy [O] . Hongjun Hu, Dingfei Zhang, Fusheng Pan 2015

机译：aZ31镁合金等通道角挤压的计算机模拟与优化
8. Production of Dense Compact Billet From Ti-Alloy Powder Using Equal Channel Angular Extrusion. [R] . Lapovok, R., Tomus, D. 2007

机译：用等通道角挤压法生产Ti合金粉末致密致密坯料。

Equal Channel Angular Extrusion of Porous Billets: Computer Simulation and Experimental Study

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