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ASM Handbook

Nondestructive Evaluation of Materials

Edited by
Aquil Ahmad
Aquil Ahmad
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Leonard J. Bond
Leonard J. Bond
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ASM International
Volume
17
ISBN electronic:
978-1-62708-190-0
Publication date:
2018
Book Chapter

Nondestructive Evaluation of Additively Manufactured Metallic Parts

By
Lucas W. Koester
Lucas W. Koester
Iowa State University
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Leonard J. Bond
Leonard J. Bond
Iowa State University
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Peter C. Collins
Peter C. Collins
Iowa State University
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Hossein Taheri
Hossein Taheri
Iowa State University
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Timothy Bigelow
Timothy Bigelow
Iowa State University
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Published:
2018
Page range:
544 - 552
Publication history
August 21, 2018

Abstract

Additive manufacturing (AM) is the process of joining materials to make parts from three-dimensional (3D) model data, usually layer upon layer, as opposed to subtractive manufacturing and formative manufacturing methodologies. This article discusses various defects in AM components, such as porosity, inclusions, cracking, and residual stress, that can be avoided by using vendor recommended process parameters and approved materials. It describes the development of process-structure-property-performance modeling. The article explains the practical considerations in nondestructive evaluation for additively manufactured metallic parts. It also examines nondestructive testing (NDT) inspection and characterization methods for each of the manufacturing stages in their natural order. The article provides information on various inspection techniques for completed AM manufactured parts. The various electromagnetic and eddy current techniques that can be used to detect changes to nearsurface geometric anomalies or other defects are also discussed. These include ultrasonic techniques, radiographic techniques, and neutron imaging.

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Lucas W. Koester, Leonard J. Bond, Peter C. Collins, Hossein Taheri, Timothy Bigelow, 2018. "Nondestructive Evaluation of Additively Manufactured Metallic Parts", Nondestructive Evaluation of Materials, Aquil Ahmad, Leonard J. Bond

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