Effect of processing parameters on the microstructure and mechanical properties of Al-steel composite foam

被引：39
作者：
Vendra, L. J. [1 ]
Brown, J. A. [1 ]
Rabiei, A. [1 ]
机构：
[1] N Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC 27695 USA
来源：
JOURNAL OF MATERIALS SCIENCE | 2011年 / 46卷 / 13期
基金：
美国国家科学基金会;
关键词：
METAL FOAMS; ALUMINUM-STEEL; DIFFUSION; BEHAVIOR; FRACTURE; FATIGUE; IRON;
D O I：
10.1007/s10853-011-5356-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Al-steel composite foams comprise of steel hollow spheres embedded in an aluminum matrix and are processed using a gravity casting technique. The effect of processing parameters such as casting temperature and cooling rate on the microstructure and mechanical behavior was studied to establish structure-property relationships. Results show that the amount and composition of intermetallic phases present in the foam microstructure is directly related to casting temperature and cooling rate. Highest strength and energy absorption were obtained from Al-steel foams with fast solidification rates that minimize the growth of intermetallic phases.
引用
收藏
页码：4574 / 4581
页数：8
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