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there is relative slipping between concrete and strengthening materials (SM), the strain of SM and steel rebar of RC beam satisfies the double linear strain distribution assumption, that is, the strain......
A new diamond bit for extra-hard, compact and nonabrasive rock formationWANG Jia-liang(王佳亮)1, 2, ZHANG Shao-he(张绍和)1, 2(1. Key Laboratory of Non-ferrous Metal Ore Forecast of Ministry of Education, Changsha 410083, China;2. School of Geo-sciences and Info-physic, Central South University, Changsha 410083, China)Abstract:A new impregnated diamond bit was designed to solve the slipping problem when......
′ phases, and the formation of precipitations at grain boundaries and interfaces between the twins and matrix. Because of an increase in precipitations, the dislocation slipping during deformation process... to basal plane of α-Mg and very stable at high temperature, providing the most effective block for slipping of dislocation [15–18]. Moreover, the finer and denser β′ phases in deformed alloy can further......
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of the alloy is that the dislocations with and [011] trace features shear into the rafted γ′ phase. The main/secondary slipping dislocations are alternately activated to twist the rafted γ′ phase up... is reduced while dislocations pile up in the channels to produce the strain strengthening. At the same time, the slipping and climbing of dislocations occur under the action of thermal activation......
during the standard heat treatment. Compared with the standard heat-treated alloy, significant amount of dislocations slipping with single oriented and double oriented feature are activated in ITF......
theoretically. According to the simulation results, the high oil pressure and friction coefficient can reduce the slipping time. The large oil pressure can increase the peak torque but the effect... generates the friction heat and reduces the life of clutch due to the engagement and disengagement cycles [2, 3]. During the start and shift of the tractor, the wet clutch transmits torque by slipping......
-Yang Zhi-yong. Study on a new type self-sharpening diamond bit for drilling in hard-compact-slipping formation[J]. Exploration Engineering, 2014, 41(11): 57-59. [3] 张 伟. 高温岩体热能开发及钻进技术[J]. 探矿工程(岩土钻掘工程..., TONG Mu, MEI Dong, LIU Qiang. Effect of pore-forming agent on drilling performance of impregnated diamond bits for slipping formation[J]. Materials Science and Engineering of Powder Metallurgy, 2014......
activation energy of the alloy is calculated to be 249.8 kJ/mol. The deformed mechanism of HCR alloy during creep is double orientation slipping of dislocations activated within α phase with HCP structure... mechanism of the alloy is the multiple slipping of (1/2) á111? dislocations activated within β phase with BCC structure. In this alloy, the high volume fraction V-riched β phase may enhance the creep......
