Consolidation and Mechanical Properties of Gas Atomized Al-Si Powder

机译：气雾化铝硅粉的固结与力学性能

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Hypereutectic prealloyed Al-20wt.%Si powders were prepared by the gas atomization process. Characteristics of the atomized Al-Si powders were investigated. With increasing gas pressure of the atomization, the average powder size and oxygen content decreased. Primary Si particles in the as-atomized powders were about 8-10 μm. Sintering behavior of the atomized Al-Si powders was discussed with sintering temperature. As-atomized powders were hot-pressed and extruded into a cylindrical shape. 96-99% of theoretical density was achieved by the hot consolidation. Microstructure changes as well as hardness and tensile properties of the samples were evaluated in this paper.

机译：通过气体雾化工艺制备了过共晶预合金的Al-20wt。％Si粉末。研究了雾化的Al-Si粉末的特性。随着雾化的气压升高，平均粉末尺寸和氧含量降低。雾化粉末中的原始Si颗粒约为8-10μm。讨论了雾化Al-Si粉的烧结行为及其烧结温度。将雾化后的粉末热压并挤压成圆柱形。通过热固结达到理论密度的96-99％。本文评估了样品的微观结构变化以及硬度和拉伸性能。

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来源
《International Conference on Proceeding amp; Manufacturing of Advanced Materials; 20060704-08; Vancouver(CA)》|2006年|P.2633-2638|共6页
会议地点 Vancouver(CA)
作者
Y.J. Kim; J.C. Kim; J.H. Ahn;
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作者单位

Powder Materials Research Center, Korea Institute of Machinery and Materials 66 Sangnam-dong, Changwon, Kyungnam, 641-010, Korea;

School of Mater. Met. Eng., University of Ulsan P.O.Box 18, Ulsan, 680-749, Korea;

Department of Materials Engineering, Ando;

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原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
hypereutectic Al-Si alloy; gas atomization; hot consolidation;

机译：过共晶Al-Si合金;气体雾化;热固结;

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Consolidation and Mechanical Properties of Gas Atomized Al-Si Powder

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