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such as hardness and compressive strength were investigated. The optimum density (93.33%) was obtained at the compaction pressure of 6.035 MPa. Scanning electron microscopic (SEM) observations of the microstructures... specimens and resulted in no beneficial effect on the strength and hardness. The compressive strength and hardness of Ti64 alloy/5% nano SiCp MMCs showed higher values. Hence, 5% SiCp can be considered......
% and 0.5%, and the smallest grain can reach 0.1 mm. The compressive testing results show that La can improve the strength and ductility, the compression ratio can be improved by about 100%, which is owing to grain refining and boundary and grain-boundary strengthening. Key words: La; Ti-Al alloy; compressive property; grain refining; precipitation strength 钛铝基合金具有低密度,高熔点,高强度等特点,广泛应用于航空航天工业.TiAl基合金同时......
on the compressive strength of fired pellets when fired temperature is below 1 210 ℃, and the compressive strength of common magnetite pellets are maximal, followed by the pellets made of magnetite with high MgO content, and the pellets adding MgO powder are minimum. The MgO content has greater effect on the compressive strength of fired pellets when fired temperature is above 1 240 ℃, and the compressive......
化后的抗压强度 Fig. 5 Compressive strength of cementitious material at different temperatures 2.2 石灰对铜渣还原提铁和渣相活化重构的影响 本实验考察了100 g铜渣在1400 ℃,煤炭13 g条件下,15,21,27,33,39,45 g石灰对铜渣还原提铁和渣相活化重构的影响. 对比不同石灰...得到胶凝活性更好的还原渣,综合石灰含量对铁还原的影响,其适宜的石灰含量在为39 g. 图6 不同石灰量下还原金属铁的回收率 Fig. 6 Recovery of iron under different lime content 图7 不同石灰含量下胶凝材料水化后的抗压强度 Fig. 7 Compressive strength......
by three deformation stages:linear elastic stage,collapsing stage and densification stage.At the linear elastic stage,the peak compressive strength(σ0) and Young’s modulus(E0) increase as the density...Compressive and energy absorption properties of closed-cell magnesium foamsJI Haibin,YAO Guangchun,LUO Hongjie,ZU Guoyin,and LIU Letian School of Material and Metallurgy,Northeastern University......
of phosphogypsum cemented filling body was investigated by uniaxial compressive strength test, toxicity leaching test and microscopic analysis under different curing temperature. The results show that the early uniaxial compressive strength (UCS) of phosphogypsum filling is exponentially related to the curing temperature, and the UCS after curing for 3 d at 10 ℃, 20 ℃, 30 ℃ and 40 ℃ are 0.055 MPa......
; 文献标志码:A 文章编号:1672-7207(2015)07-2613-07 Characteristic of triaxial compressive strength of grading macadam considering loading velocity zhou..., and the relationship among the peak strength, residual strength and loading velocity meet the linear characteristic. Key words: grading macadam; triaxial compressive test; loading velocity; strength characteristic......
Surface Modification of Fly Ashes with Carbide Slag and Its Effect on Compressive Strength and Autogenous Shrinkage of Blended Cement Pastes郝成伟1,2,邓敏11. State Key Laboratory of Materials-Oriented... and after modification were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Effect of surface-modified fly ashes on compressive strength and autogenous......
experimental design method involving three factors and three levels, the flexural strength and the compressive strength of copolymer grouting material were studied with different compositions of water-cement... on the 3-day flexural strength and the compressive strength. The copolymer grouting material with water-cement ratio of 0.4, epoxy resin content of 8% (mass fraction) and waterborne epoxy curing agent......
and temperature on the compressive deformation characteristics of high strength steel by hot compression tests. The model of dynamic recrystallization for hot deformation was used for providing a reliable...J. Cent. South Univ. (2016) 23: 1007-1014 DOI: 10.1007/s11771-016-3149-2 Dynamic recrystallization behavior and kinetics of high strength steel WU Guang-liang(吴光亮), ZHOU Chao-yang(周超洋), LIU Xin-bin......