The hardness of additively manufactured alloys

J. S. Zuback, T. DebRoy

Research output: Contribution to journalReview articlepeer-review

93 Scopus citations


The rapidly evolving field of additive manufacturing requires a periodic assessment of the progress made in understanding the properties of metallic components. Although extensive research has been undertaken by many investigators, the data on properties such as hardness from individual publications are often fragmented. When these published data are critically reviewed, several important insights that cannot be obtained from individual papers become apparent. We examine the role of cooling rate, microstructure, alloy composition and post process heat treatment on the hardness of additively manufactured aluminum, nickel, titanium and iron base components. Hardness data for steels and aluminum alloys processed by additive manufacturing and welding are compared to understand the relative roles of manufacturing processes. Furthermore, the findings are useful to determine if a target hardness is easily attainable either by adjusting AM process variables or through appropriate alloy selection.

Original languageEnglish (US)
Article number2070
Issue number11
StatePublished - Oct 23 2018

All Science Journal Classification (ASJC) codes

  • General Materials Science


Dive into the research topics of 'The hardness of additively manufactured alloys'. Together they form a unique fingerprint.

Cite this