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grains with less than 10% relative error; 3) predict the structure defect of stray grain with the accuracy over 80%; 4) optimize the grain selector to better obtain a single crystal avoiding the multigrain defect; 5) simulate the structure evolution (nucleation and growth) of the directional and single crystal turbine blade. Key words: unidirectional solidification; misorientation; stray grain......
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Micro EDM deposition in air by single discharge thermo simulationWANG, Yu-kui1, 2, XIE Bao-cheng1, WANG Zhen-long1, 2, PENG Zi-long1(1. School of Mechatronics Engineering, Harbin Institute...-physical model for micro electric discharge machining deposition process using finite element method (FEM) was introduced. The numerical analysis of the single spark operation of the process was carried......
Finite element analysis of γ′-phase raft mechanism in Ni-based single crystal superalloy WU Wen-ping(吴文平), GUO Ya-fang(郭雅芳), WANG Yue-sheng(汪越胜) Institute of Engineering Mechanics... in a single crystal Ni-based superalloy with the [001] orientation. The results show that the creep and rafting are closely related with the stress and strain energy density distributions in the matrix......
Influence of Pre-Compressive Creep on Internal Friction Stress and Creep Parameters of Nickel-Base Single Crystal Superalloys Cui Shusen1,Shang Lijuan1,Du Hongqiang1,Tian Sugui1,Yu Xingfu1,Zhao Zhonggang1 (1.Shenyang Liming Aero-engine Corporation, AVIC I, Shenyang 110043, China) 摘要:By means of pre-compressive creep treatment, the cubic γ'' phase in a nickel base single crystal superalloy......
J. Cent. South Univ. (2012) 19: 593-599 DOI: 10.1007/s11771-012-1044-z Rapid identification of single constant contaminant source by considering characteristics of real sensors CAI Hao(蔡浩)1, 2, LI... and accurately identify the position, emission rate, and release time of a single constant contaminant source by using real sensors was presented. The method was numerically demonstrated and validated by a case......
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J. Cent. South Univ. Technol. (2011) 18: 2036-2044 DOI: 10.1007/s11771-011-0939-4 Design of 512-bit logic process-based single poly EEPROM IP JIN Li-yan(金丽妍), JANG Ji-Hye, YU Yi-ning(余忆宁), HA Pan...: A single poly EEPROM cell circuit sharing the deep N-well of a cell array was designed using the logic process. The proposed cell is written by the FN tunneling scheme and the cell size is 41.26 μm2, about......
Fluid flow in large-capacity horizontal continuous casting tundishesShu-feng Yang,Jing-she Li,Jing Jiang,Xiao-chuan Lin,and Lin Lin School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China摘 要:The configuration of the tundish for a two-strand horizontal continuous caster was designed......
J. Cent. South Univ. (2018) 25: 1862-1869 DOI: https://doi.org/10.1007/s11771-018-3875-8 Investigation of modeling on single grit grinding for martensitic stainless steel NIE Zhen-guo(聂振国)1, 2, 3..., China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: Single grit grinding is the simplified model to abstract the macro scale grinding. Finite......