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and duration decreased to almost zero after carbon inoculation. The grain refining efficiency of carbon inoculation could be assessed by the shape of the cooling curve and solidification...], interaction between addition elements [20,21] and optimizing refiner and modifier level in a foundry [22,23]. The precise shape of the cooling curve is directly related to the solidification......
Residue curve maps of ethyl acetate synthesis reactionZHENG Hui-dong(郑辉东), TIAN Hui(田晖), ZOU Wen-hu(邹文虎), HUANG Zhi-xian(黄智贤), WANG Xiao-da(王晓达), QIU Ting(邱挺), ZHAO Su-ying(赵素英), WU Yan-xiang(吴燕翔)(College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China)Abstract:The residue curve maps are considered as a powerful tool for the preliminary design of reactive......
Evaluating instrumented Charpy impact strain signals using curve fitting equationsM. B. Ali1, 2, S. Abdullah1, M. Z. Nuawi1, A. K. Ariffin1, Z. M. Nopiah1(1. Department of Mechanical and Materials... system. Aluminium 6061-T6 was used to extract strain responses on the striker during Charpy impact testing. Statistical analysis was performed using the I-kaz method, and curve fitting equations based......
Microstructure characteristics and solidification behavior of thixomolded Mg-9%Al-1%Zn alloy ZHANG You-fa1, LIU Yong-bing2, CAO Zhan-yi2 1. Jiangsu Key Laboratory of Advanced Metallic Materials... were carried out to comprehensively understand the morphology transformation of solid particles and the solidification behavior. Typical microstructure of thixomolded AZ91D is composed of α-Mg......
J. Cent. South Univ. (2019) 26: 1856-1862 DOI: https://doi.org/10.1007/s11771-019-4139-y A new slope optimization design based on limit curve method FANG Hong-wei(方宏伟)1,2, CHEN Yohchia(陈幼佳)3,4... Abstract: A new method is proposed for slope optimization design based on the limit curve method, where the slope is in the limit equilibrium state when the limit slope curve determined by the slip-line......
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J. Cent. South Univ. (2016) 23: 1831-1838 DOI: 10.1007/s11771-016-3237-3 Effects of rapid solidification process and 0.1%Pr/Nd addition on characteristics of Sn-9Zn solder alloy and interfacial...) alloy foils were prepared by melt-spinning method. Through comparison, the effects of rapid solidification process and 0.1%Pr/Nd (mass fraction) addition on the microstructure, thermodynamic......
curve of the infiltration distance vs time is shown in Fig.3 for n=50 r/s. The preheated temperature of Al2O3 preform is 703 K, so the transient solidification and remelting phenomena should be taken... Solidification and remelting of Al through Al2O3 fibrous preform under centrifugal force HU Guo-xin(胡国新), LIU Jian-ju(刘建局), ZHANG Li-xiang(张利祥), TIAN Qin-wei(田芩蔚) School of Mechanical and Power......
as a holistic heat system. By the cooling curve and the temperature field, it can be known that, the solidification time of ribbon is 1.0×10-4s, the even solidification rate of ribbon with 60μm thickness...Cu-Cr体系的一些凝固规律和凝固参数. 关键词: CuCr合金; 凝固模拟; 快速凝固; 熔体快淬 中图分类号: TG146.1 文献标识码: A Numerical simulation of single roller melt-spinning for solidification process of Cu-Cr alloy WANG You-hong1, 2, SUN......
temperature during solidification, the solid fraction in coherent dendrite point of Mg-6Zn-xCu-0.6Zr alloys were studied by the double thermocouples thermal analysis. The curve of solidification contraction...能力也越强,合金的热裂倾向性也因此更小.Mg-6Zn-0.6Zr和Mg-6Zn-1Cu-0.6Zr合金裂纹萌生时的固相分数较高,此时合金中的残余液相较少,很难发生补缩行为,所以热裂倾向性很大. 图8 Mg-6Zn-xCu-0.6Zr合金凝固收缩应力和冷却曲线及宏观裂纹照片 Fig. 8 Solidification shrinkage stress and cooling......
