New type of spherical pore Al alloy foam with low porosity and high strength

作     者：ZOU Yi HE Deping JIANG Jiaqiao 

作者机构：Department of Material Science and Engineering Southeast University Nanjing 210096 China Department of Material Science and Engineering Southeast University Nanjing 210096 China Department of Material Science and Engineering Southeast University Nanjing 210096 China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2004年第47卷第5期

页      面：407-413页

核心收录：

学科分类：07[理学] 08[工学] 

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.50231010 50081002 90205005 and 19982001) 

主　　题：spherical pore, low porosity, high strength, interface shifting, Al alloy foam. 

摘      要：A computer system for displacement sensor is developed to obtain the real-time curve of the liquid porosity of molten Al alloy foam. The relationship between the curve ofP I-t and the change of the shape of the cells (spherical, similar spherical and polygonal) in the foaming process is analyzed. The changes of cell diameter and cell wall thickness are studied. And the the controlling methods of a new Al alloy foam with spherical pores, low porosity and high strength are developed on this basis. Also, the stress-strain curve during compressive deformation and energy absorption characteristics are investigated and compared with polygonal pore Al alloy foam with high porosity. Keywords spherical pore - low porosity - high strength - interface shifting - Al alloy foam These authors contributed equally to this work.