Investigation into using resonant frequency measurements to predict the mechanical properties of Ti-6Al-4V manufactured by selective laser melting.
Sci Rep
; 9(1): 9278, 2019 Jun 26.
Article
em En
| MEDLINE
| ID: mdl-31243307
ABSTRACT
There is a need to qualify additively manufactured parts that are used in highly regulated industries such as aerospace and nuclear power. This paper investigates the use of resonant ultrasound measurements to predict the mechanical properties of Ti-6Al-4V manufactured by selective laser melting using a Renishaw AM 250. It is first demonstrated why R2 should not be used to assess the predictive capability of a model, before introducing a method for calculating predicted R2, which is then used to assess the models. It is found that a linear model with the resonant frequency peaks as predictors cannot be used to predict elongation at failure or reduction in area. However, linear models did demonstrate better predictive capabilities for Young's modulus, yield strength, and especially ultimate tensile strength.
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1
Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article