Analysis of Casting Subsurface Structure Using Acoustic Microscopy
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
This article presents the results of an investigation of the subsurface structure in 319 aluminum alloy castings using a nondestructive scanning acoustic microscopy technique. This type of analysis can reveal the grain size, constituents, oxide inclusions and porosity. This method can also be used to study various structural transformations that occur during the solidification and heat treatment processes.