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Literature Review of Metal Additive Manufacturing Defects



Felix H. Kim, Shawn P. Moylan


Additive manufacturing (AM) is a revolutionary manufacturing technique, which is expected to reshape the future manufacturing industries. While various materials are used in AM, metal AM is expected to provide a high impact to the industries by producing high-strength structural components. Defects occurring in AM, however, prevent the technique from a wide spread adoption to the mainstream industry. This paper provides a review of commonly-occurring defects in metal AM-produced components. It describes various types and causes of defects, provides implications on the needs of non-destructive evaluation (NDE) techniques to inspect such defects.
Advanced Manufacturing Series (NIST AMS) - 100-16
Report Number


Kim, F. and Moylan, S. (2018), Literature Review of Metal Additive Manufacturing Defects, Advanced Manufacturing Series (NIST AMS), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 23, 2024)


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Created May 17, 2018, Updated November 10, 2018