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DC casting of light alloys under magnetic fields CUI Jian-zhong(崔建忠), ZHANG Zhi-qiang(张志强), LE Qi-chi(乐启炽) Key Laboratory of Electromagnetic Processing of Materials of Ministry of Education... (HLEC), DC casting of hollow billets under electromagnetic fields (HBEC), electromagnetic modifying of hypereutectic Al-Si alloys(EMM), air film casting under static magnetic field (AFCM), and multi......
on the edge of ingots when LFEC field is applied, while in the center of billets when field US is adopted. Combined the characteristics of LFEC and US fields, a new process for direct-chilling (DC) casting... are improved. Key words: low frequency electromagnetic field; ultrasonic field; Mg alloy; DC casting 1 Introduction Grain refinement is an effective way to improve the workability and strengthening......
and solidification during low frequency electromagnetic casting of 7xxx aluminum alloys: Part II. The effects of electromagnetic parameters on casting processes [J]. Materials Science and Engineering A, 2007, 448(3): 189-203. 低频电磁铸造超高强铝合金铸锭 张海涛,崔建忠 东北大学 材料电磁过程研究教育部重点实验室, 沈阳 110004 摘 要:通过使用数值模拟和实验相结合的方法,研究低频电磁场对铝合金半连续铸造过程中宏观物理场与铸锭的组织和裂纹的影响;比较低频电磁铸造和DC铸造过程的宏观物理场.结果表明:应用电磁场可以完全改变熔体的流动方向,加快流动速度......
: The effects of a low-voltage pulsed magnetic field on the solidified structure and mechanical properties of DC casting AZ80 magnesium alloy were investigated. The results showed that the solidified structure of the DC casting AZ80 magnesium alloy was refined obviously by the low-voltage pulsed magnetic field and significant grain refinement in the DC casting ingot of AZ80 magnesium alloy......
As-cast structure of DC casting 7075 aluminum alloy obtained under dual-frequency electromagnetic fieldZhi-hao Zhao,Zhen Xu,Gao-song Wang,Qing-feng Zhu,Jian-zhong CuiThe Key Laboratory... of semi-continuous casting 7075 aluminum alloy obtained in the presence of dual-frequency electromagnetic field.Results suggest that the use of dual-frequency electromagnetic field during the semi......
Trans. Nonferrous Met. Soc. China 22(2012) s729-s734 Synthesis and properties of Cr-Al-Si-N films deposited by hybrid coating system with high power impulse magnetron sputtering (HIPIMS) and DC pulse... with high power impulse magnetron sputtering (HIPIMS) and a DC pulse sputtering using Cr and AlSi targets under N2/Ar atmosphere. By varying the sputtering current of the AlSi target in the range of 0-2.5......
of subgrains inside the forged ingot, which contributes to the high performance of the forged products. Key words: near-net shape; DC casting; Z parameter; subgrains; automobile suspension part; aluminum... was that the shape of the ingot was designed to be similar to the shape of the forged products and the ingot was produced by traditional DC (direct chill) casting. In this way, the forged billet could......
DC元数据与网络信息的检索效率毛燕梅,张百灵,李立华,张秋萍摘 要:本文通过DC元数据对网络资源的标引和管理特点的分析 ,说明它是提高网络信息检索效率的一种很有发展前途的方法关键词:DC元数据;Metadata;网络信息检索;......
, 466(1/2): 71-78. [2] LE Qi-chi, GUO Shi-jie, ZHAO Zhi-hao, CUI Jian-zhong, ZHANG Xin-jian. Numerical simulation of electromagnetic DC casting of magnesium alloys [J]. Journal of Materials Processing..., ESKIN D G, KATGERMAN L. The effect of ramping casting speed and casting temperature on temperature distribution and melt flow patterns in the sump of a DC cast billet [J]. Materials Science......
with diameter of 200 mm were made by low frequency electromagnetic casting (LFEC) and conventional direct chill (DC) casting process. The results show that under the low frequency electromagnetic field (25 Hz... process is found to be 32 mT. Key words: Al-Zn-Mg-Cu alloy; DC casting; low frequency electromagnetic field; magnetic flux density; microstructure 1 Introduction Superhigh strength aluminum alloys......