Affiliation:
1. General Research Institute for Nonferrous Metals
Abstract
In this paper, Al-Zn-Mg-Cu alloys were produced through spray forming technique. Microstructures of interconnected porosity defects in spray-deposited preforms were characterized by means of field emission scanning electron microscopy (FESEM). The formation mechanisms of different types of interconnected pores were investigated. The densification of deposited alloy preforms with interconnected pores was also analyzed. Interconnected pores in deposited alloys may be classified into four types, interconnected pores between interstices, between gas pores, between interstices and gas pores, and interconnected pores associated with solidification shrinkage, according to morphology and formation mechanism.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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