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Development of Low and Middle Carbon Martensite Spring Steel with High Strength and Toughness for Automobile Zhu Yin-lu1,Wu Zi-ping1,CHEN Hui-huang1,LI Ye-sheng1 (1.JiangXi University of Science... development of automobile, a new low and middle carbon spring steel35Si2CrMnVB, C0.34, Sil.66, Mn0.80, Cr0.67, V0.13, B0.001, P0.011, S0.014 wt.%, has been developed. Comparison between the new spring steel......
Low cyclic fatigue performance of concrete-filled steel tube columnsQIN Peng(秦鹏), TAN Yang(谭杨), XIAO Yan(肖岩)(College of Civil Engineering, Hunan University, Changsha 410082,China)Abstract:Eight... of steel tube in compression zone, and low cycle fatigue tearing rupture failure of steel tube. The seismic behavior was evaluated through the energy index obtained from each cycle.Key words:concrete......
MODELING OF FERRITE GRAIN GROWTH OF LOW CARBON STEELS DURING HOT ROLLING Y.T.Zhang1,Y.Y.Li1,D.Z.Li1 (1.Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016, China) Abstract:For most commercial steels the prediction of the final properties depends on accuratelycalculating the room temperature ferrite grain size. A grain growth model is proposedfor low carbon steels......
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Pore-scale simulation of gas-water flow in low permeability gas reservoirsCAO Ting-kuan(曹廷宽)1, DUAN Yong-gang(段永刚)1, YU Bo-ming(郁伯铭)2, FANG Quan-tang(方全堂)1, WANG Rong(王容)3(1. State Key Laboratory...) network model representing pore space in low permeability sandstone. Digital core of rock sample was established by the combination of micro-CT scanning and image processing, then 3D pore-throat......
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J. Cent. South Univ. (2012) 19: 2307-2315 DOI: 10.1007/s11771-012-1276-y Separation of sulfide lead-zinc-silver ore under low alkalinity condition SUN Wei(孙伟), SU Jian-fang(苏建芳), ZHANG Gang(张刚), HU... was conducted according to the properties of the lead-zinc-silver ore. Under low alkalinity condition, the lead minerals are successfully separated from the zinc minerals with new reagent YZN as zinc......
Low cycle fatigue improvement of powder metallurgy titanium alloy through thermomechanical treatment LIU Bin(刘 彬)1, LIU Yong(刘 咏)1, HE Xiao-yu(何小禹)1, TANG Hui-ping(汤慧萍)2, CHEN Li-fang(陈丽芳)1 1...; Abstract: A low-cost β type Ti-1.5Fe-6.8Mo-4.8Al-1.2Nd (mass fraction, %)(T12LCC) alloy was produced by blended elemental powder metallurgy(P/M) method and subsequent thermomechanical treatment......
shear rates while the viscosity of type I is the lower than that of Types Ⅱ and Ⅲ. The storage modulus G′ and the loss modulus G″ for three types of HAPAM were measured in low oscillation frequency... is called specified frequency(SF). In addition, SF moves to low frequency with increased HPAM concentration. The loss modulus G″ is larger than the storage modulus G′ when angular frequency is less than SF......
