Fracture and fatigue in additively manufactured metals
Additive manufacturing (AM) of metallic components offers many advantages over
conventional manufacturing methods, most notably design freedom at little material waste …
conventional manufacturing methods, most notably design freedom at little material waste …
Strategies for improving the sustainability of structural metals
Metallic materials have enabled technological progress over thousands of years. The
accelerated demand for structural (that is, load-bearing) alloys in key sectors such as …
accelerated demand for structural (that is, load-bearing) alloys in key sectors such as …
[HTML][HTML] The effect of manufacturing defects on the fatigue life of selective laser melted Ti-6Al-4V structures
The manufacturing defects introduced by selective laser melting typically lead to lower
fatigue strength and a larger variation in fatigue life compared to conventionally …
fatigue strength and a larger variation in fatigue life compared to conventionally …
A new approach to correlate the defect population with the fatigue life of selective laser melted Ti-6Al-4V alloy
Microstructural features and defects arising from selective laser melting (SLM) determine the
in-service performance of additively manufactured near-net-shape components. Here the …
in-service performance of additively manufactured near-net-shape components. Here the …
Stress gradient effect in metal fatigue: Review and solutions
Under external loadings, notched components always show varying degrees of stress
concentration. Accordingly, different kinds of approaches have been presented to …
concentration. Accordingly, different kinds of approaches have been presented to …
[HTML][HTML] Corrosion fatigue lifetime assessment of high-speed railway axle EA4T steel with artificial scratch
The effects of environment (in air and 3.5 wt% NaCl solution) and artificially-induced surface
scratches are investigated on the fatigue properties of railway EA4T (also called 25CrMo4) …
scratches are investigated on the fatigue properties of railway EA4T (also called 25CrMo4) …
Effects of cryogenic temperature and grain size on fatigue-crack propagation in the medium-entropy CrCoNi alloy
CrCoNi-based high-entropy alloys have demonstrated outstanding mechanical properties,
particularly at cryogenic temperatures. Here we investigate the fatigue-crack propagation …
particularly at cryogenic temperatures. Here we investigate the fatigue-crack propagation …
Autonomous healing of fatigue cracks via cold welding
Fatigue in metals involves gradual failure through incremental propagation of cracks under
repetitive mechanical load. In structural applications, fatigue accounts for up to 90% of in …
repetitive mechanical load. In structural applications, fatigue accounts for up to 90% of in …
Fatigue life estimation of additively manufactured Ti-6Al-4V: Sensitivity, scatter and defect description in Damage-tolerant models
N Macallister, TH Becker - Acta Materialia, 2022 - Elsevier
Damage-tolerant models for fatigue life estimation rely on fracture mechanics principles to
model fatigue crack initiation and growth. In Laser-Based Powder Bed Fusion (LPBF) …
model fatigue crack initiation and growth. In Laser-Based Powder Bed Fusion (LPBF) …
The nature and the mechanism of crack initiation and early growth for very-high-cycle fatigue of metallic materials–An overview
Y Hong, C Sun - Theoretical and Applied Fracture Mechanics, 2017 - Elsevier
Very-high-cycle fatigue (VHCF) is the fatigue damage and failure beyond 10 7 loading
cycles. Crack initiation of VHCF for metallic materials is commonly from the interior of …
cycles. Crack initiation of VHCF for metallic materials is commonly from the interior of …