Coupled experimental and computational study of residual stresses of additively manufactured Ti-6Al-4V components

Published

July 30, 2018

Author(s)

Maria Strantza, Rishi Ganeriwala, Bjorn Clausen, Thien Q. Phan, Lyle E. Levine, D Pagan, Wayne King, Niel Hodge, Brown Donald

Abstract

The production of metallic parts via laser-powder bed fusion (L-PBF) additive manufacturing is rapidly growing. To use components produced via L-PBF in safety-critical applications, a high degree of quality confidence is required. This qualification can be supported by means of a validated thermomechanical model capable of predicting the final residual stress state and subsequent lifetime. In this work, we use high-energy X-ray diffraction to determine a three- dimensional residual strain and stress state of a Ti-6Al-4V L-PBF component. The experimental results are used to aid in validation of simulations. Strong agreement is observed between the experiments and the model predictions.

Citation

Materials Letters

Issue

231

Pub Type

Journals

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Keywords

additive manufacturing, residual stress

Citation

Strantza, M. , Ganeriwala, R. , Clausen, B. , Phan, T. , Levine, L. , Pagan, D. , King, W. , Hodge, N. and Donald, B. (2018), Coupled experimental and computational study of residual stresses of additively manufactured Ti-6Al-4V components, Materials Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925448 (Accessed September 9, 2024)