Fracture and fatigue in additively manufactured metals

TH Becker, P Kumar, U Ramamurty - Acta Materialia, 2021 - Elsevier
Additive manufacturing (AM) of metallic components offers many advantages over
conventional manufacturing methods, most notably design freedom at little material waste …

Separation of the impact of residual stress and microstructure on the fatigue performance of LPBF Ti-6Al-4V at elevated temperature

T Mishurova, K Artzt, B Rehmer, J Haubrich… - International Journal of …, 2021 - Elsevier
Manufacturing defects, high residual stress (RS), and microstructures affect the structural
integrity of laser powder bed fusion (LPBF) Ti-6Al-4V. In this study, the individual effect of …

Spatial inhomogeneity of build defects across the build plate in laser powder bed fusion

TP Moran, DH Warner, A Soltani-Tehrani… - Additive …, 2021 - Elsevier
The population of build defects as a function of position on the build plate was examined in
Ti-6Al-4V specimens fabricated on two common commercial laser powder bed fusion (LPBF) …

Near-threshold fatigue crack growth rates of laser powder bed fusion produced Ti-6Al-4V

TH Becker, NM Dhansay, GM Ter Haar, K Vanmeensel - Acta Materialia, 2020 - Elsevier
Abstract When Ti-6Al-4V is processed by laser powder bed fusion (LPBF), a material with a
martensitic microstructure is obtained. Moreover, the presence of internal stresses, an outer …

[HTML][HTML] On the existence of orthorhombic martensite in a near-α titanium base alloy used for additive manufacturing

C Fleißner-Rieger, MA Tunes, C Gammer, T Jörg… - Journal of alloys and …, 2022 - Elsevier
Additive manufacturing is a state-of-the-art production technology to produce tailor-made
and highly complex parts. Among various other alloys, Ti base alloys are frequently used in …

[HTML][HTML] Thermo-mechanical modelling of stress relief heat treatments after laser-based powder bed fusion

D De Baere, P Van Cauwenbergh, M Bayat… - Additive …, 2021 - Elsevier
Laser-based powder bed fusion, due to its layer-by-layer nature, results in a unique stress
profile in a part after the primary production process. The residual stresses are typically …

The influence of microstructural texture and prior beta grain recrystallisation on the deformation behaviour of laser powder bed fusion produced Ti–6Al–4V

GM Ter Haar, TH Becker - Materials Science and Engineering: A, 2021 - Elsevier
The control and predictability of mechanical properties during manufacturing is essential in
achieving parts that consistently deliver adequate mechanical properties. In laser powder …

Fatigue crack growth parameters of laser powder bed fusion produced Ti-6Al-4V

N Macallister, K Vanmeensel, TH Becker - International Journal of Fatigue, 2021 - Elsevier
The value of fatigue predictive NASGRO models hinges on the quality of established
parameters to describe the behaviour of the subject material. To establish these parameters …

[HTML][HTML] Reducing time and cost of the heat treatment post-processing of additively manufactured Ti6Al4V

D Kouprianoff, W du Preez - Materials Today Communications, 2023 - Elsevier
The unique microstructure of Ti6Al4V produced through laser powder bed fusion (LPBF)
displays high tensile strength with low elongation in the as-built state. To obtain desired …

Effect of concentrated solar energy on microstructure evolution of selective laser melted Ti-6Al-4V alloy

LA Chicos, SM Zaharia, G Cempura, A Kruk… - … International Journal of …, 2021 - Springer
This paper aims at analyzing the effect of heat treatment using Concentrated Solar Energy
(CSE) on the martensitic microstructure evolution of Ti-6Al-4V alloy manufactured by …