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Investigations of high-frequency induction hardening process for piston rod of shock absorberXianhua Cheng and Qianqian ShangguanSchool of Mechanical & Power Engineering, Shanghai Jiaotong University, Shanghai 200030, China摘 要:<正>The microhardness of piston rods treated with different induction hardening processes was tested. The experimental......
Annealing-induced Hardening in a Nanostructured Low-carbon Steel Prepared by Using Dynamic Plastic DeformationL.X.Sun1,N.R.Tao1,K.Lu11. Shenyang National Laboratory for Materials Science,Institute... and annealing-induced precipitates in nano-scale play key roles in the hardening.关键词:......
STUDY OF THE THERMODYNAMICS DURING THE HYDRATION AND HARDENING OF ANHYDRITE岳文海,赵青南摘 要:<正> The process of hydration and hardening of theanhydrite,and the condition of practical use of itsproducts have been studied by way of the thermodyna-mic calculation.The calculated results show thatthe hydration reaction of anhydrite is a spontaneousprocess......
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Influence and Analysis of Concentrate Degree of Plasma Arc for Heat Process of Hardening Treatment YAN Hong-ri1,WANG Shuo-gui1 (1.Department of Precision Machinery and Precision Instrument... change the width of the hardening zone and can not change the maximum harden depth. With the increase of the concentrate degree, the area of the heat influence zone is decreased and its shape is narrowed......
Cracking Propagation of Hardening Concrete Based on the Extended Finite Element Method朱振泱1,2,CHEN Weimin2,ZHANG Guoxin11. China Institute of Water Resources and Hydropower Research2. Hydrochina... deformation. In this paper, an extended finite element calculation method was deduced for concrete crack propagation under a constant hydration and hardening condition during the construction period......
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Strain hardening of as-extruded Mg-xZn(x=1, 2, 3 and 4 wt%) alloysChaoyue Zhao1,Xianhua Chen1,2,Fusheng Pan1,2,Jingfeng Wang1,2,Shangyu Gao1,Teng Tua1,Chunquan Liu1,Jiahao Yao3,Andrej Atrens41... of Queensland摘 要:The influence of Zn on the strain hardening of as-extruded Mg-x Zn(x = 1, 2, 3 and 4 wt%) magnesium alloys was investigated using uniaxial tensile......
Received 9 May 2014; accepted 13 July 2014 Abstract: The influences of strength coefficient K, work hardening exponent n and thickness t of the overlapping sheet on bulging process are analyzed based on hardening material model. Also, bulging experiments are carried out by taking the aluminum alloy LF21 as formed sheet metal, and selecting overlapping sheet with different thicknesses and material......
Stress-state dependence of dynamic strain aging: Thermal hardening and blue brittlenessWen-qi Liu1,Jun-he Lian1,21. Advanced Manufacturing and Materials, Department of Mechanical Engineering, Aalto... with serrated flow behavior, thermal hardening, and blue brittleness phenomena. Results show that the stress state contributes distinctly to the DSA effect in terms of the magnitude of thermal......
