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| 1 | Structure and property of metal melt Ⅳ——Evolution of titanium melt residual bond structure and its effect on dynamic viscosity显示文摘Based on the concept of melt residual bonds, a calculating model quantitatively describing the evolution of the residual bond structure of titanium melt at the melting point or in a certain range above the melting point was established; i.e., both the size dS and the bond number n of the residual bond structure decrease monotonously with the increase of temperature. By mathematical deduction, a linear relationship between the residual bond structure size dS and the dynamic viscosity of Titanium melt was revealed, i.e., = 0.876 + 0.471·dS, which is of great significance to the investigation of the relationship between the melt microstructure and the macroscopic properties of metals with high melting temperature. | MI GuangBao CAO JingXia HUANG Xu CAO ChunXiao LIPeiJie HE LiangJu | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，8： | 3 |
| 2 | Valence electron structure analysis of refining mechanism of Sc and Ti additions on aluminum显示文摘The mechanism of the difference of refining effect between Sc and Ti adding to aluminum can not be explained substantially with traditional theory. Valence electron structures of Al-Ti and Al-Sc alloys have been studied by using the empirical electron theory of solids and molecules (EET). The covalent bond electron numbers and interfacial electron density differences are calculated. The conclusion is that, in the two alloys, different covalent bond electron numbers of nucleation particles, and different electron densities on the interface between the second phase particles and the matrix, fundamentally lead to the difference of refining effect between Sc and Ti adding to aluminum. | LI PieJie YE YiCong HE LiangJu | 2009 | Chinese Science Bulletin2009，54，5： | 2 |
| 3 | Valence electron structures analysis on refinement mechanism by Sc and Ti in pure Aluminum显示文摘 | LI Peijie Ye Yicong HE Liangju | 2008 | SCIENCE IN CHINA PRESS2008，53，： | 1 |
| 4 | Microstructure and mechanical properties of an asymmetric twin-roll cast AZ31 magnesium alloy strip 显示文摘 | ZHAO Hu LI Peijie HE Liangju | 2012 | Journal of Materials Processing Technology2012，，212： | 1 |
| 5 | Microstructure and mechanical properties of an asymmetric twin-roll cast AZ31 magnesitm alloy strip显示文摘 | Hu Zhao Peijie Li Liangju He | 2012 | Journal of Materials Processing Technology2012，，212： | 1 |
| 6 | Mechanism and application of a newly developed pressure casting process:horizontal squeeze casting显示文摘Compared to traditional high-pressure die casting(HPDC),horizontal squeeze casting(HSC)is a more promising way to fabricate high-integrity castings,owing to a reduced number of gas and shrinkage porosities produced in the casting.In this paper,the differences between HSC and HPDC are assessed,through which it is shown that the cavity filling velocity and the size of the gating system to be the most notable differences.Equipment development and related applications are also reviewed.Furthermore,numerical simulation is used to analyze the three fundamental characteristics of HSC:slow cavity filling,squeeze feeding and slow sleeve filling.From this,a selection principle is given based on the three related critical casting parameters:cavity filling velocity,gate size and sleeve filling velocity.Finally,two specific applications of HSC are introduced,and the future direction of HSC development is discussed. | Li Peijie Huang Xiusong He Liangju Liu Xiangshang Wang Benci | 2014 | China Foundry2014，11，4： | 0 |
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