Nanomechanical properties of additively and traditionally manufactured nickel-chromium-based superalloys through instrumented nanoindentation

Michael Munther, Tyler Palma, Fariborz Tavangarian, Ali Beheshti, Keivan Davami

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Despite the potential and promising future of additive manufacturing (AM), the quality and performance of the products from metal additive manufacturing has been susceptible to skepticism. Herein, a nanoindentation method was implemented to compare the hardness, Young's modulus, and fracture toughness in AM and hot-rolled Inconel 718. Results indicated that Young's modulus and hardness of AM IN718 were nearly 25% and 50% smaller, respectively, compared to hot-rolled specimens. Indentation fracture toughness measurements showed that the traditionally fabricated specimens had a fracture toughness close to the reported range, but that of the AM samples was almost 25% smaller.

Original languageEnglish (US)
Pages (from-to)39-43
Number of pages5
JournalManufacturing Letters
Volume23
DOIs
StatePublished - Jan 2020

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'Nanomechanical properties of additively and traditionally manufactured nickel-chromium-based superalloys through instrumented nanoindentation'. Together they form a unique fingerprint.

Cite this