Residual stress and texture control in Ti-6Al-4V wire + arc additively manufactured intersections by stress relief and rolling
By J. Hönnige, Paul A. Colegrove, B. Ahmad, Michael E. Fitzpatrick, S. Ganguly, T. Lee, Stewart W. Williams. Materials & Design (1980-2015), 2018
181 citations recorded by the source corpus.
Abstract Additively manufactured intersections have the theoretical risk to contain hydrostatic tensile residual stresses, which eventually cannot be thermally stress relieved. The stresses in Ti-6Al-4V wire + arc additively manufactured (WAAM) intersections are lower compared to single pass walls and stresses in continuous walls are larger compared to discontinuous walls with otherwise identical geometry. Thermal stress relief was found to virtually eliminate them. Inter-pass rolling can yield the desired grain refinement, without having any noteworthy influence on the development of residual stresses. The strain measurement itself by neutron diffraction is facilitated by the refined microstructure, because the otherwise textured microstructure produces anisotropic peak intensity, not allowing Pawley refinement. Without rolling, the 10 1 ¯ 1 and 10 1 ¯ 3 family of hcp planes are the only ones that diffract consistently in the three principal directions.
Subfields: Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/f06d839aee09ee4bea25f4d00bdf151956cc93d5
How researchers see this paper
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In Mechanical Engineering
- Jialuo Ding
- Stewart W. Williams
- Arungalai Vendan Subbiah
- M. Chaturvedi
- D. Mihailescu
- C. Rusu
- E. Scutelnicu
- L. Mistodie
Citations in the corpus
- Criticality of porosity defects on the fatigue performance of wire + arc additive manufactured titanium alloy (2019, background): “99%) Ti-6Al-4V components with virtually no defects [3].”
- Wire Arc Additive Manufacturing: Review on Recent Findings and Challenges in Industrial Applications and Materials Characterization (2021, background): “[91] Tensile stresses Interpass rolling and thermal stress relief Improved mechanical properties with reduced grain size Dominant thermal history, no significant difference to final residual stress”