Abstract

X-ray imaging is attractive as one of the advanced tools in modern non-contact and nondestructive inspection. It is used to fulfill the increasing requirements associated with new materials and corresponding inspection specifications. In this paper, the applications of x-ray imaging in the fabrication of advanced materials and surface coatings, such as ceramic particulate reinforced metal matrix composites, materials made by Metal Injection Molding (MIM) and laser treated coatings are discussed. The x-ray images show clearly the flaws or defects, such as cracks, pores, bubbles, precipitation of phases and agglomeration of particles caused by the manufacturing processes. This information has been successfully used in quality control during fabrication. The reasons for the formation of these defects during fabrication are explained, and solutions are found to optimize the processing parameters.

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