Defects and anomalies in powder bed fusion metal additive manufacturing

A Mostafaei, C Zhao, Y He, SR Ghiaasiaan… - Current Opinion in Solid …, 2022 - Elsevier
Metal additive manufacturing is a disruptive technology that is revolutionizing the
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …

Defects in additive manufactured metals and their effect on fatigue performance: A state-of-the-art review

N Sanaei, A Fatemi - Progress in Materials Science, 2021 - Elsevier
Additive manufacturing (AM) is emerging as an alternative to conventional subtractive
manufacturing methods with the goal to deliver unique and complex net or near-net shaped …

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 …

[HTML][HTML] Effects of defects on mechanical properties in metal additive manufacturing: A review focusing on X-ray tomography insights

A Du Plessis, I Yadroitsava, I Yadroitsev - Materials & Design, 2020 - Elsevier
X-ray tomography has emerged as a uniquely powerful and non-destructive tool to analyze
defects in additive manufacturing. Defects include unintended porosity, rough surfaces and …

The influence of additive manufacturing processing parameters on surface roughness and fatigue life

J Gockel, L Sheridan, B Koerper, B Whip - International Journal of Fatigue, 2019 - Elsevier
Additive manufacturing (AM) is used to create metal components with complex geometries
where the internal surfaces cannot easily be post machined. Fatigue behavior in additively …

Effects of post-processing on the surface finish, porosity, residual stresses, and fatigue performance of additive manufactured metals: a review

C Ye, C Zhang, J Zhao, Y Dong - Journal of Materials Engineering and …, 2021 - Springer
Additive manufacturing (AM) has attracted much attention due to its capability in building
parts with complex geometries. Unfortunately, AM metals suffer from three major drawbacks …

Defect characteristics and analysis of their variability in metal L-PBF additive manufacturing

N Sanaei, A Fatemi, N Phan - Materials & Design, 2019 - Elsevier
Additive manufacturing (AM) has provided an opportunity for fabricating complex parts.
Fabricating these parts without defects is currently a challenge. Therefore, understanding …

Fatigue of additive manufactured Ti-6Al-4V, Part I: The effects of powder feedstock, manufacturing, and post-process conditions on the resulting microstructure and …

JW Pegues, S Shao, N Shamsaei, N Sanaei… - International Journal of …, 2020 - Elsevier
Additive manufacturing provides an appealing means to process titanium alloy parts with
new levels of conformability, complexity, and weight reduction. However, due to the …

High cycle fatigue behavior and life prediction for additively manufactured 17-4 PH stainless steel: Effect of sub-surface porosity and surface roughness

S Romano, PD Nezhadfar, N Shamsaei, M Seifi… - Theoretical and Applied …, 2020 - Elsevier
The high potential of additive manufacturing (AM) techniques offers novel opportunities and
unexplored design freedom. However, typical internal defects and poor surface quality …

Analysis of the effect of surface roughness on fatigue performance of powder bed fusion additive manufactured metals

N Sanaei, A Fatemi - Theoretical and Applied Fracture Mechanics, 2020 - Elsevier
An important advantage of AM is to create net-shaped components with no need for further
surface machining since it is usually very difficult for complex geometries. The effect of …