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%；与不考虑应变影响的流动应力模型相比,该模型的拟合精度高,能较好地描述7A09铝合金高温变形过程中的流动行为,为铝合金高温变形过程的数值模拟奠定了较好的基础. 关键词:7A09铝合金；热模拟压缩；流动应力；应变；流动应力模型 中图分类号:TG146.21 文献标志码:A Flow stress model considering... compressor. Meanwhile, a flow stress model considering the contribution of the strain was established in the isothermal compression of 7A09 aluminum alloy. The results show that the flow stress of 7A09......
J. Cent. South Univ. (2019) 26: 623-631 DOI: https://doi.org/10.1007/s11771-019-4033-7 Stress relaxation behavior and life prediction of gasket materials used in proton exchange membrane fuel cells... membrane fuel cell. In this work, the stress relaxation behavior of silicone rubber samples is studied under different temperatures and simulated operating conditions. The results show......
Effect of anisotropy on microstructure and high temperature stress rupture properties of Ni3Al base single crystal alloy KONG Zhi-gang(孔志刚), HAN Ya-fang(韩雅芳), LI Shu-suo(李树索) School of Materials... on microstructure and high temperature stress rupture property of Ni3Al base single crystal alloy was investigated. The single crystal specimens were produced by screw selection crystal method......
J. Cent. South Univ. (2020) 27: 2353-2366 DOI: https://doi.org/10.1007/s11771-020-4454-3 Field synergy analysis of different flow patterns in falling-film dehumidification system with horizontal... and Architecture, Beijing 100044, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Effects of the flow pattern of intertubular liquid film......
, compaction of the microcrack and pore can cause obvious permeability decreases [13, 14]. In rock material, the connected cracks, which are sensitive to stress, have a preferential flow path under... sensitive to stress, become the main flow path, and pore compaction is the major reason for the permeability decrease. This decrease is milder than that caused by crack closure [14–16]. Permeability......
were gained. The flow stress of the alloy studied decreases with increasing the deforming passes and declining the temperature, and the larger the temperature decline between adjacent stages, the larger... precipitated from the matrix at high temperature. Key words:Al-Zn-Mg-Cu-Cr alloy; Multi-stage compression; Flow stress and peak stress; Micro-structure evolution; [全文内容正在添加中] ......
ARTICLE J. Cent. South Univ. (2019) 26: 1146-1160 DOI: https://doi.org/10.1007/s11771-019-4077-8 Magnetohydrodynamic flow and heat transfer impact on ZnO-SAE50 nanolubricant flow over an inclined...-tuned with the investigation of mixed convection Darcy-Forchheimer flow of ZnO-SAE50 oil nanolubricant over an inclined rotating disk under the influence of uniform applied magnetic field applied......
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M R, Kokabi A H, Nasr-Esfehani M. Sulfide stress corrosion cracking and hydrogen induced cracking of A216-WCC wellhead flow control valve body [J]. Case Studies in Engineering Failure Analysis, 2013...J. Cent. South Univ. (2016) 23: 757-764 DOI: 10.1007/s11771-016-3121-1 Influence factors on stress corrosion cracking of P110 tubing steel under CO2 injection well annulus environment LIU Zhi-yong(刘......
; Abstract: The effect of strain hardening and strain softening behavior of flow stress...) was conventional only temperature- dependent material model. In PM, the yield stress varies with temperature during heating and cooling stage. Flow stress model (FM) was temperature- and plastic-strain......
