TY - JOUR
T1 - Nanomechanical properties of additively and traditionally manufactured nickel-chromium-based superalloys through instrumented nanoindentation
AU - Munther, Michael
AU - Palma, Tyler
AU - Tavangarian, Fariborz
AU - Beheshti, Ali
AU - Davami, Keivan
N1 - Funding Information:
We thank Renishaw Inc. and Jamey Deloney from Tech-Labs Inc. for the support and material preparation. This work was supported, in part, by NSF- CMMI-MRI grant Award #1726022.
Funding Information:
We thank Renishaw Inc. and Jamey Deloney from Tech-Labs Inc. for the support and material preparation. This work was supported, in part, by NSF- CMMI-MRI grant Award #1726022. Appendix A
PY - 2020/1
Y1 - 2020/1
N2 - 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.
AB - 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.
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U2 - 10.1016/j.mfglet.2019.09.003
DO - 10.1016/j.mfglet.2019.09.003
M3 - Article
AN - SCOPUS:85076864612
SN - 2213-8463
VL - 23
SP - 39
EP - 43
JO - Manufacturing Letters
JF - Manufacturing Letters
ER -