Low cycle fatigue properties of Ti-6Al-4V alloy fabricated by high-power laser directed energy deposition: Experimental and prediction
Source abstract
Abstract
Abstract The low cycle fatigue (LCF) properties of Ti-6Al-4V parts fabricated by high-power laser directed energy deposition were investigated. The results show that the parts after solution treatment and aging exhibit superior LCF lives to those of other reported AM Ti-6Al-4V parts, as well as are comparable to those of the wrought counterparts at intermediate strain amplitudes (from 0.8% to 1.1%). Cyclic softening behaviors were found at various strain amplitudes (from 0.65% to 1.7%). In addition, a microstructure-based multistage fatigue model was used to predict their LCF lives and shows good agreement with the experimental data.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · High Entropy Alloys Studies · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (57)
Show source-provided references
1. Additive manufacturing of metallic components – process, structure and properties10.1016/j.pmatsci.2017.10.001 ↗
2. Laser additive manufacturing of metallic components: materials, processes and mechanisms10.1179/1743280411Y.0000000014 ↗
3. Perspectives on titanium science and technology10.1016/j.actamat.2012.10.043 ↗
4. Metal additive manufacturing: a review of mechanical properties10.1146/annurev-matsci-070115-032024 ↗
5. Review of mechanical properties of Ti-6Al-4V made by laser-based additive manufacturing using powder feedstock10.1007/s11837-015-1759-z ↗
6. Mechanical properties and microstructural features of direct laser-deposited Ti-6Al-4V10.1007/s11837-015-1308-9 ↗
7. Additive manufacturing and postprocessing of Ti-6Al-4V for superior mechanical properties10.1557/mrs.2016.215 ↗
8. Fatigue behaviour of additively manufactured Ti-6Al-4V10.1016/j.proeng.2015.12.632 ↗
9. Zhang SY. Research on the heat treated microstructures and properties of laser solid forming Ti-6Al-4V alloy. In: Northwestern Polytechnical University, Xi'an; 2009. p. 93–96.10.1007/s12598-009-0104-5 ↗
10. Fatigue behavior and failure mechanisms of direct laser deposited Ti–6Al–4V10.1016/j.msea.2015.12.026 ↗
11. A fractographic study exploring the relationship between the low cycle fatigue and metallurgical properties of laser metal wire deposited Ti–6Al–4V10.1016/j.ijfatigue.2016.02.011 ↗
12. Fatigue behavior and failure mechanisms of direct laser deposited Ti–6Al–4V10.1016/j.msea.2015.12.026 ↗
13. The metallurgy and processing science of metal additive manufacturing10.1080/09506608.2015.1116649 ↗
14. Additive manufacturing of metals: a brief review of the characteristic microstructures and properties of steels, Ti-6Al-4V and high-entropy alloys10.1080/14686996.2017.1361305 ↗
15. Improvement of fatigue resistance and ductility of TiAl6V4 processed by selective laser melting10.1016/j.jmatprotec.2015.01.025 ↗
16. Fatigue performances of selective laser melted Ti-6Al-4V alloy: Influence of surface finishing, hot isostatic pressing and heat treatments10.1016/j.ijfatigue.2018.11.019 ↗
17. Investigation of the mechanisms by which hot isostatic pressing improves the fatigue performance of powder bed fused Ti-6Al-4V10.1016/j.ijfatigue.2018.10.015 ↗
18. Additive manufacturing of Ti6Al4V alloy: A review10.1016/j.matdes.2018.107552 ↗
19. A review of the fatigue properties of additively manufactured Ti-6Al-4V10.1007/s11837-017-2728-5 ↗
20. Additive manufacturing of metals10.1016/j.actamat.2016.07.019 ↗
21. An overview of Direct Laser Deposition for additive manufacturing; Part II: Mechanical behavior, process parameter optimization and control10.1016/j.addma.2015.07.002 ↗
22. Critical assessment of the fatigue performance of additively manufactured Ti–6Al–4V and perspective for future research10.1016/j.ijfatigue.2015.12.003 ↗
23. Additive manufacturing of fatigue resistant materials: Challenges and opportunities10.1016/j.ijfatigue.2017.01.001 ↗
24. Research progress in laser solid forming of high-performance metallic components at the state key laboratory of solidification processing of China, 3D Printing and Additive
25. Microstructure and deformation behavior of Ti-6Al-4V alloy by high-power laser solid forming10.1016/j.actamat.2017.04.026 ↗
26. Influence of prior-β-grain size on tensile strength of a laser-deposited α/β titanium alloy at room and elevated temperatures10.1016/j.msea.2014.11.014 ↗
27. Effect of solution temperature and cooling rate on microstructure and mechanical properties of laser solid forming Ti-6Al-4V alloy10.3788/COL20090706.0498 ↗
28. Influence of energy density on metallurgy and properties in metal additive manufacturing10.1080/02670836.2017.1289444 ↗
29. Microstructures of laser-deposited Ti–6Al–4V10.1016/j.matdes.2003.09.009 ↗
30. Microstructure evolution, tensile properties, and fatigue damage mechanisms in Ti-6Al-4V alloys fabricated by two additive manufacturing techniques10.1016/j.proeng.2015.08.007 ↗
31. The effect of laser power and traverse speed on microstructure, porosity, and build height in laser-deposited Ti-6Al-4V10.1016/S1359-6462(00)00408-5 ↗
32. 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 ↗
33. Fatigue: a complex subject – some simple approximations10.1007/BF02321056 ↗
34. Simple expressions to estimate the Manson-Coffin curves of ductile cast irons10.1016/j.ijfatigue.2015.03.025 ↗
35. Modified universal slopes equation for estimation of fatigue chacaracteristics10.1115/1.3226010 ↗
36. The exponential law of endurance tests
37. Manson SS. Behavior of materials under conditions of thermal stress. National Advisory Commission on Aeronautics: Report 1170 Cleveland: Lewis Flight Propulsion Laboratory 1954. p. 317–50.
38. A study of the effects of cyclic thermal stresses on a ductile metal
39. Sursh · 1998 · 221
40. Materials Handbook, Vol 4: Titanium alloys and
41. Lee Y-L, Pan J, Hathaway RB, Barkey ME. Fatigue testing and analysis: theory and practice. 2005: p. 190–219.
42. Low-cycle and extremely-low-cycle fatigue behaviors of high-Mn austenitic TRIP/TWIP alloys: Property evaluation, damage mechanisms and life prediction10.1016/j.actamat.2015.11.015 ↗
43. Li J. Research on the microstructures and mechanical properties of high power laser solid formed TC4 titanium alloy. In: Northwestern Polytechnical University; 2015. p. 53–58.
44. 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 ↗
45. Fatigue behavior of Ti-6Al-4V ELI including mean stress effects10.1016/j.ijfatigue.2017.02.013 ↗
46. Stephens · 2001
47. Additive manufacturing of strong and ductile Ti–6Al–4V by selective laser melting via in situ martensite decomposition10.1016/j.actamat.2014.11.028 ↗
48. Kitagawa H, Takahashi S. Applicability of fracture mechanics to very small cracks or the cracks in the early stage. In: Proceedings of the 2nd international conference on mechanical behavior of materials, Boston. Cleveland (OH): ASM; 1976. p. 627–631.
49. A comparison of fatigue strength sensitivity to defects for materials manufactured by AM or traditional processes10.1016/j.ijfatigue.2016.06.020 ↗
50. The influence of porosity on fatigue crack initiation in additively manufactured titanium components10.1038/s41598-017-06504-5 ↗
51. Analysis of stress intensity factor of modes I, II and III for inclined surface cracks of arbitrary shape10.1016/0013-7944(85)90163-8 ↗
52. Microstructure-based fatigue modeling of cast A356–T6 alloy10.1016/S0013-7944(02)00021-8 ↗
53. Utilization of a microstructure sensitive fatigue model for additively manufactured Ti-6Al-4V10.1108/RPJ-11-2015-0168 ↗
54. Microstructure-based fatigue modeling of cast A356–T6 alloy10.1016/S0013-7944(02)00021-8 ↗
55. Microstructure-based multistage fatigue modeling of aluminum alloy 7075–T65110.1016/j.engfracmech.2006.12.031 ↗
56. Microporosity effects on cyclic plasticity and fatigue of LENS™-processed steel10.1016/j.actamat.2010.03.014 ↗
57. Fatigue crack growth behavior and microstructural mechanisms in Ti-6Al-4V manufactured by laser engineered net shaping10.1016/j.ijfatigue.2016.08.009 ↗