Notch fatigue and crack growth resistance of Ti-6Al-4V ELI additively manufactured via selective laser melting: A critical distance approach to defect sensitivity
Source abstract
Abstract
Abstract This work is aimed at exploring the applicability of the theory of critical distances to the notch fatigue prognosis of Ti-6Al-4V ELI additively manufactured via selective laser melting. Particular attention is paid on investigating how the defectiveness influences the material critical length and the path followed by the fatigue cracks after nucleation. Fully-reversed axial fatigue tests are carried out on notched specimens of different severity and macrocrack growth tests are performed to determine the crack growth threshold ΔKth. The critical distance lengths are estimated according to a critical distance inverse search procedure and compared with the value deduced from ΔKth.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Welding Techniques and Residual Stresses · Additive Manufacturing and 3D Printing Technologies
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References (35)
Show source-provided references
1. Gibson · 2015
2. Perspectives on titanium science and technology10.1016/j.actamat.2012.10.043 ↗
3. The effect of manufacturing defects on the fatigue behaviour of Ti-6Al-4V specimens fabricated using selective laser melting10.4028/www.scientific.net/AMR.891-892.1519 ↗
4. Additive manufacturing of strong and ductile Ti–6Al–4V by selective laser melting via in situ martensite decomposition10.1016/j.actamat.2014.11.028 ↗
5. Microstructure and mechanical behavior of Ti–6Al–4V produced by rapid-layer manufacturing, for biomedical applications10.1016/j.jmbbm.2008.05.004 ↗
6. Improvement of fatigue resistance and ductility of TiAl6V4 processed by selective laser melting10.1016/j.jmatprotec.2015.01.025 ↗
7. On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: fatigue resistance and crack growth performance10.1016/j.ijfatigue.2012.11.011 ↗
8. Critical assessment of the fatigue performance of additively manufactured Ti-6Al-4V and perspective for future research10.1016/j.ijfatigue.2015.12.003 ↗
9. A comparison of fatigue strength sensitivity to defects for materials manufactured by AM or traditional processes10.1016/j.ijfatigue.2016.06.020 ↗
10. Effects of defects in laser additive manufactured Ti-6Al-4V on fatigue properties10.1016/j.phpro.2014.08.120 ↗
11. Defect analysis and fatigue design basis for Ni-based superalloy 718 manufactured by selective laser melting10.1016/j.ijfatigue.2018.08.002 ↗
12. Low- and high-cycle fatigue resistance of Ti- 6Al-4V ELI additively manufactured via selective laser melting: mean stress and defect sensitivity10.1016/j.ijfatigue.2017.10.021 ↗
13. The effect of post-sintering treatments on the fatigue and biological behavior of Ti-6Al-4V ELI parts made by selective laser melting10.1016/j.jmbbm.2017.03.024 ↗
14. As-fabricated and heat-treated microstructures of the Ti-6Al-4V alloy processed by selective laser melting10.1007/s11661-011-0731-y ↗
15. A comparison of the tensile, fatigue, and fracture behavior of Ti–6Al–4V and 15–5 PH stainless steel parts made by selective laser melting10.1007/s00170-013-5106-7 ↗
16. Fatigue life of additively manufactured Ti-6Al-4V in the very high cycle fatigue regime10.1016/j.ijfatigue.2016.05.018 ↗
17. Influence of defects, surface roughness and HIP on the fatigue strength of Ti-6Al-4V manufactured by additive manufacturing10.1016/j.ijfatigue.2018.07.020 ↗
18. Significance of hot isostatic pressing (HIP) on multiaxial deformation and fatigue behaviors of additive manufactured Ti-6Al-4V including build orientation and surface roughness effects10.1016/j.ijfatigue.2018.07.035 ↗
19. Study of alpha-case depth in Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V
20. American Society for Testing Materials · 2014
21. Fatigue and biological properties of Ti-6Al-4V ELI cellular structures with variously arranged cubic cells made by selective laser melting10.1016/j.jmbbm.2017.11.044 ↗
22. Fatigue assessment of Ti-6Al-4V circular notched specimens produced by selective laser melting10.3390/met7080291 ↗
23. Fatigue strength of blunt V-notched specimens produced by selective laser melting of Ti-6Al-4V10.1016/j.tafmec.2017.06.021 ↗
24. Influence of as-built surface on fatigue strength and notch sensitivity of Ti6Al4V alloy produced by DMLS
25. Fatigue behaviour of notched additive manufactured Ti6Al4V with as-built surfaces10.1016/j.ijfatigue.2017.04.009 ↗
26. Taylor · 2007
27. Fatigue performance of additive manufactured TiAl6V4 using electron and laser beam melting10.1016/j.ijfatigue.2016.05.001 ↗
28. On the determination of fatigue properties of Ti6Al4V produced by selective laser melting
29. Determination of the fatigue critical distance according to the Line and the Point Methods with rounded V-notched specimen10.1016/j.ijfatigue.2017.10.002 ↗
30. Experimental determination and sensitivity analysis of the fatigue critical distance obtained with rounded V-notched specimens10.1016/j.ijfatigue.2018.03.037 ↗
31. Influence of strength and stress history on growth and stabilisation of fatigue cracks10.1016/0013-7944(72)90078-1 ↗
32. Fatigue behavior of porous Ti-6Al-4V made by laser-engineered net shaping10.3390/ma11020284 ↗
33. Porosity effect on tensile behavior of Ti-6Al-4V specimens produced by laser engineered net shaping technology10.1177/0954406218813384 ↗
34. Effects of cooling rate and stabilization annealing on fatigue behavior of β-processed Ti-6Al-4V alloys10.1007/s12540-017-6730-9 ↗
35. Blumenauer · 1993