Analysis of creep behavior of SiC/Al metal matrix composites based on a generalized shear-lag model

Ho J. Ryu; Kyung H. Chung; Seung I. Cha

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Analysis of creep behavior of SiC/Al metal matrix composites based on a generalized shear-lag model

机译：基于广义剪滞模型的SiC / Al金属基复合材料蠕变行为分析

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The creep behaviors of 20 vol percent SiCw/2124Al, extruded with different ratios, and SiCp/2124Al, reinforced with 10-30 vol percent SiC particles, were investigated to clarify the effects of aspect ratio, alignment, and volume fraction of reinforcement on creep deformation. The effective stresses on the matrix of SiC/Al composites are calculated based on the generalized shear-lag model. The minimum creep rates of SiCw/2124Al extruded with different ratios and SiCp/2124Al reinforced with different volume fractions of SiC particles are found to be similar under a same effective stress on matrix, which is calculated by the generalized shear-lag model. The subgrain sizes in matrices of crept SiC/Al composites are dependent on the effective stress on matrix but not on the applied stress on the composite. It is suggested that the role of SiC reinforcements is to increase the creep resistance of SiC/Al composite by reducing the effective stress on matrix.

机译：研究了20vol％不同比例挤压的SiCw / 2124Al和10-30vol％SiC颗粒增强的SiCp / 2124Al的蠕变行为，以阐明纵横比，排列和体积分数对蠕变的影响形变。基于广义剪滞模型，计算了SiC / Al复合材料基体的有效应力。通过广义剪切滞后模型计算得出，在相同的有效应力作用下，不同比例挤压的SiCw / 2124Al和不同体积分数的SiCp / 2124Al的最小蠕变速率相似。蠕变SiC / Al复合材料基体中的亚晶粒尺寸取决于基体上的有效应力，而不取决于复合材料上施加的应力。提示SiC增强材料的作用是通过降低基体上的有效应力来提高SiC / Al复合材料的抗蠕变性。

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《Journal of Materials Research》 |2004年第12期|p.3633-3640|共8页
作者
Ho J. Ryu; Kyung H. Chung; Seung I. Cha;
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作者单位

Dry Process Fuel Technology Division, Korea Atomic Energy Research Institute, Daejeon 305-353, Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
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2. Load Partitioning During Creep Of Powder Metallurgy Metal Matrix Composites And Shear-lag Model Predictions [J] . Ricardo Fernandez, Gaspar Gonzalez-Doncel Materials Science and Engineering . 2009,第1a2期

机译：粉末冶金金属基复合材料蠕变过程中的载荷分配及剪切滞后模型预测
3. STATISTIC MODELING OF THE CREEP BEHAVIOR OF METAL MATRIX COMPOSITES BASED ON FINITE ELEMENT ANALYSIS [J] . 岳珠峰应用数学和力学（英文版） . 2002,第004期

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4. Creep behavior and modeling of SiC-based PC ceramic matrix composites with glass sealant in high temperature air [C] . T. Ishikawa, N. Suzuki, I. J. Davies, International conference on high temperature cermic matrix composites . 1999

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5. Threshold stress and creep behavior in refractory alloy and metal matrix composites. [D] . Lin, Zhigang. 2000

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6. Fabrication and Mechanical Behavior of Ex Situ Mg-Based Bulk Metallic Glass Matrix Composite Reinforced with Electroless Cu-Coated SiC Particles [O] . Xin Wang, Lichen Zhao, Ximei Hu, 2017

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7. Analysis of creep behavior of SiC/Al metal matrix composites based on a generalized shear-lag model [O] . Ho J. Ryu, Kyung H. Chung, Seung I. Cha, 2004

机译：基于广义剪滞模型的siC / al金属基复合材料蠕变行为分析
8. Elevated temperature tensile and creep behavior of a SiC fiber-reinforced titanium metal matrix composite [R] . Thurston, Rita J. 1995

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Analysis of creep behavior of SiC/Al metal matrix composites based on a generalized shear-lag model

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