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and Cr are peak and residual cohesive strength, respectively; σn is the normal stress on the shear surface; φ is the frictional angle of rock. Fig.1 Evolution law of cohesive and frictional strength...J. Cent. South Univ. Technol. (2008) 15: 493-497 DOI: 10.1007/s11771-008-0093-9 Strength evolution law of cracked rock based on localized progressive damage model ZHANG Ping(张 平)1, 2, LI Xi-bing......
Microstructure evolution of Cu-Pb monotectic alloys during directional solidification CUI Hong-bao(崔红保), GUO Jing-jie(郭景杰), SU Yan-qing(苏彦庆), DING Hong-sheng(丁宏生), WU Shi-ping(吴士平), BI Wei-sheng... and the cellular structures with L2 phase at the cell boundaries are developed. Key words: copper-lead monotectic alloy; directional solidification; transient morphology; microstructure evolution 1......
Enhanced Surface Mechanical Properties and Microstructure Evolution of Commercial Pure Titanium Under Electropulsing-Assisted Ultrasonic Surface Rolling ProcessYong-Da Ye1,2,Xiao-Pei Li1,2,Zhi-Yan...="ChDivSummary" name="ChDivSummary">The effects of electropulsing-assisted ultrasonic surface rolling process on surface mechanical properties and microstructure evolution of commercial pure titanium were......
J. Cent. South Univ. (2018) 25: 1987-2001 DOI: https://doi.org/10.1007/s11771-018-3889-2 Experimental investigation on deformation characteristics and permeability evolution of rock under confining... under the path of confining pressure unloading prior to the peak stress. Deformation behavior and permeability evolution in the whole stress–strain process based on these experimental results were......
the shear rate-dependent behavior of rock discontinuities, shear tests with alternating shear rates (SASRs) were conducted on rock discontinuities with various surface morphologies. The dynamic evolution... began to slide along the surface; and the shear stress achieved residual strength (Stage IV-2). Finally, the groove was filled, and a new flatter slip surface appeared. 3.2 Dynamic evolution of shear......
J. Cent. South Univ. Technol. (2008) 15: 95-99 DOI: 10.1007/s11771-008-0019-6 Fatigue properties analysis of cracked rock based on fracture evolution process ZHANG Ping(张 平)1, 2...; Abstract: Fracture evolution......
, polyhedral structure and high surface area is synthesized by high temperature solid state reaction. The evolution of microstructure from raw materials NiO and Fe2O3 to the reaction resultant NiFe2O4-10NiO shows that the domain structure which makes up of the agglomerative Fe2O3 particle remains after heating process. The analysis results of micro- structural evolution show that the main reaction......
A. Structural evolution of conventional cast dendritic and spray-cast nondendritic structures during isothermal holding in the semisolid sate [J]. Scripta Mater, 1997, 12: 2003-2007. [19] TZIMAS E... Microstructural evolution during partial remelting of AM60B magnesium alloy refined by MgCO3 CHEN Ti-jun(陈体军), MA Ying(马 颖), WANG Rui-quan(王瑞全), LI Yuan-dong(李元东), HAO Yuan(郝 远) Key......
Structural and electronic properties of bastnaesite and implications for surface reactions in flotationShiming Cao1,2,Yijun Cao2,3,Zilong Ma2,Yinfei Liao2,Xiaolin Zhang41. School of Resources... with contact angle measurement,surface complexation theory and XPS analysis,the implications of structural and electronic properties on bastnaesite flotation reactions were studied.The hydration......
Structural and electronic properties of bastnaesite and implications for surface reactions in flotationShiming Cao1,2,Yijun Cao2,3,Zilong Ma2,Yinfei Liao2,Xiaolin Zhang41. School of Resources... with contact angle measurement,surface complexation theory and XPS analysis,the implications of structural and electronic properties on bastnaesite flotation reactions were studied.The hydration......