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基于塑性应变的变幅应力疲劳损伤评估方法张继旺1,鲁连涛1,沈训梁1,衣鸿飞1,张卫华1(1.四川省成都市西南交通大学牵引动力国家重点实验室)摘 要:中碳车轴用钢的旋转弯曲疲劳实验结果表明,在其疲劳极限以上,应力-寿命数据满足三参数曲线关系,因此,其变幅应力作用下的疲劳损伤不能使用基于应力的线性累积损伤法则评估.本文结合中碳车轴用钢恒幅和高/低两级多次变幅应力的旋转弯曲疲劳实验数据,基于恒幅应力作用下S-N曲线倾斜部分曲线,提出了可用于材料在变幅旋转弯曲作用下的疲劳损伤评估的方法.该方法考虑材料在疲劳过程中发生的......
硼铁矿火法分离过程的AT&T矩阵系统评价钱洪伟1,薛向欣1(1.辽宁省沈阳市东北大学材料与冶金学院辽宁省高校硼资源生态化综合利用技术与硼材料重点实验室)摘 要:采用AT&T矩阵系统评价方法研究了硼铁矿火法分离过程的资源环境影响状况.通过分析硼铁矿火法分离过程的资源化表征,改进并完善了AT&T矩阵系统评价对象,即提出硼铁矿火法分离过程PLCA,TLCA,FLCA,分别进行了AT&T矩阵评价,并提出了系列改进建议;同时勾勒出了因子(阶段)-环境效应图例.研究结果表明,硼铁矿火法分离过程的资源......
Fracture Behavior of CrN Coatings Under Indentation and Dynamic Cycle Impact田林海,唐宾Research Institute of Surface Engineering, Taiyuan University of Technology摘 要:cycle impact. It is found that, for the coatings on silicon substrate, the cracks form in the indentation corners and then propagate outward under Vickers indentation. The coating......
Phase Structure and Cycle Stabilities of Mg2Ni/Mm0.3Ml0.7Ni3.55Co0.75Mn0.4Al0.3 Composite Hydrogen Storage Alloys Prepared by Two-step re-melting黄丽宏,刘向东,闫淑芳,车广东摘 要:cycle performances of hydrogen-storage alloy electrodes, Mm0.3Ml0.7Ni3.55Co0.75Mn0.4-Al0.3-x%Mg2Ni(x=0, 5, 10, 30) composite hydrogen storage alloys......
; 循环变形; 低周疲劳; 疲劳断口; Zr-Sn-Nb alloy (N18 alloy); cyclic deformation; low cycle fatigue; fatigue fracture; [全文内容正在添加中] ......
Risk assessment of lead emissions from anthropogenic cycle Jing LIANG, Jian-su MAO State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal...% to the total risk, indicating these three chemicals should be taken priority for the risk management. Key words: lead; source; human health risk; ecological risk; total risk; life cycle 1 Introduction......
and compare the emission rates. Simulation was developed based on the optimal gear shifting strategy and criteria and was validated both in fuel economy and emissions by analyzing the results in the various driving cycle and driving styles. To explore an optimal gear shifting strategy with best fuel economy and lowest emission for a manual transmission, a strategy was designed with a highest......
Performance analysis and improvement of geothermal binary cycle power plant in oilfieldLI Tai-lu(李太禄)1,2, ZHU Jia-ling(朱家玲) 1,2, ZHANG Wei(张伟) 1,2(1. Key Laboratory of Efficient Utilization of Low... ratio and economic benefit. A new function that reflects both the technical and economic performances was put forward and used as the objective function. An organic Rankine cycle (ORC) was analyzed......
Thermo economic evaluation of oxy fuel combustion cycle in Kazeroon power plant considering enhanced oil recovery revenuesEhsan Torabnejad1, Ramin Haghighi-Khoshkhoo2, Niloufar Sarabchi3(1. Research... Engineering, University of Tabriz, Tabriz, Iran)Abstract:Oxy fuel combustion and conventional cycle (currently working cycle) in Kazeroon plant are modeled using commercial thermodynamic modeling software......
An amorphous carbon-graphite composite cathode for long cycle life rechargeable aluminum ion batteriesJiang Wei1,2,Wei Chen2,Demin Chen2,Ke Yang21. University of Chinese Academy of Sciences2.... The composite was used as a cathode to study the electrochemical performance in aluminum ion batteries.The charge/discharge results showed that the composite could exhibit a longer cycle life than......
