Separation of the impact of residual stress and microstructure on the fatigue performance of LPBF Ti-6Al-4V at elevated temperature
Source abstract
Abstract
Abstract 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 these factors on fatigue performance at elevated temperature (300 °C) was evaluated. Material in as-built condition and subjected to post-processing, including two heat treatments and hot isostatic pressing, was investigated. It was found that in the absence of tensile RS, the fatigue life at elevated temperature is primary controlled by the defects; and densification has a much stronger effect than the considered heat treatments on the improvement of the mechanical performance.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Welding Techniques and Residual Stresses · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (64)
Show source-provided references
1. Dutta · 2016
2. Fatigue performance evaluation of selective laser melted Ti–6Al–4V10.1016/j.msea.2014.01.041 ↗
3. Phase transformations during cooling in a+b titanium alloys10.1016/S0921-5093(97)00802-2 ↗
4. Heat treatment of Ti6Al4V produced by Selective Laser Melting: Microstructure and mechanical properties10.1016/j.jallcom.2012.07.022 ↗
5. Prediction of microstructure in selective laser melted Ti 6Al 4V alloy by cellular automaton10.1016/j.jallcom.2018.03.116 ↗
6. On the Texture Formation of Selective Laser Melted Ti-6Al-4V10.1007/s11661-014-2218-0 ↗
7. Martensitic transformations in Ti-6Al-4V (ELI) alloy manufactured by 3D Printing10.1016/j.matchar.2018.09.042 ↗
8. Dynamics of pore formation during laser powder bed fusion additive manufacturing10.1038/s41467-019-10009-2 ↗
9. Mechanism of porosity formation and influence on mechanical properties in selective laser melting of Ti-6Al-4V parts10.1016/j.matdes.2018.06.049 ↗
10. New aspects about the search for the most relevant parameters optimizing SLM materials
11. The Influence of Porosity on Fatigue Crack Initiation in Additively Manufactured Titanium Components10.1038/s41598-017-06504-5 ↗
12. Casting defects in structural components: Are they all dangerous? A 3D study10.1016/j.ijfatigue.2018.08.019 ↗
13. Assessing and comparing influencing factors of residual stresses in selective laser melting using a novel analysis method10.1177/0954405412437085 ↗
14. Residual stresses in selective laser sintering and selective laser melting10.1108/13552540610707013 ↗
15. Evaluation of residual stress in stainless steel 316L and Ti6Al4V samples produced by selective laser melting10.1080/17452759.2015.1026045 ↗
16. The Influence of the Support Structure on Residual Stress and Distortion in SLM Inconel 718 Parts10.1007/s11661-018-4653-9 ↗
17. An Assessment of Subsurface Residual Stress Analysis in SLM Ti-6Al-4V10.3390/ma10040348 ↗
18. As-Fabricated and Heat-Treated Microstructures of the Ti-6Al-4V Alloy Processed by Selective Laser Melting10.1007/s11661-011-0731-y ↗
19. The role of lattice defects, element partitioning and intrinsic heat effects on the microstructure in selective laser melted Ti-6Al-4V10.1016/j.actamat.2019.01.039 ↗
20. Low temperature stress relief and martensitic decomposition in selective laser melting produced Ti6Al4V
21. Fundamental aspects of hot isostatic pressing: An overview10.1007/s11661-000-0078-2 ↗
22. 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 ↗
23. Multiaxial fatigue behavior of wrought and additive manufactured Ti-6Al-4V including surface finish effect10.1016/j.ijfatigue.2017.03.044 ↗
24. A Review of the As-Built SLM Ti-6Al-4V Mechanical Properties towards Achieving Fatigue Resistant Designs10.3390/met8010075 ↗
25. 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 ↗
26. Fatigue of additive manufactured Ti-6Al-4V, Part II: The relationship between microstructure, material cyclic properties, and component performance10.1016/j.ijfatigue.2019.105363 ↗
27. Effects of post-processing on cyclic fatigue response of a titanium alloy additively manufactured by electron beam melting10.1016/j.msea.2016.10.059 ↗
28. Effect of heat treatment on the phase transformation and mechanical properties of Ti6Al4V fabricated by selective laser melting10.1016/j.jallcom.2018.06.076 ↗
29. Improved fatigue strength of additively manufactured Ti6Al4V by surface post processing10.1016/j.ijfatigue.2020.105497 ↗
30. Cyclic plasticity and microstructure of as-built SLM Ti-6Al-4V: The effect of build orientation10.1016/j.msea.2017.06.069 ↗
31. 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 ↗
32. An overview on the use of titanium in the aerospace industry10.1016/0921-5093(96)10233-1 ↗
33. 3D Shape Analysis of Powder for Laser Beam Melting by Synchrotron X-ray CT10.3390/qubs3010003 ↗
34. Correlation between porosity and processing parameters in TiAl6V4 produced by selective laser melting10.1016/j.matdes.2016.05.070 ↗
35. X-ray refraction distinguishes unprocessed powder from empty pores in selective laser melting Ti-6Al-4V10.1080/21663831.2017.1409288 ↗
36. Improvement of fatigue resistance and ductility of TiAl6V4 processed by selective laser melting10.1016/j.jmatprotec.2015.01.025 ↗
37. Mishurova T. Influence of residual stress and microstructure on mechanical performance of LPBF Ti-6Al-4V. Faculty of Georesources and Materials Engineering. Aachen: RWTH; 2020. p. 143. (in press).10.1016/j.ijfatigue.2021.106239 ↗
38. ISO12106:2017. Metallic materials — Fatigue testing — Axial-strain-controlled method, 2017.
39. Validated Code-of-Practice for Strain-Controlled Thermo-Mechanical Fatigue Testing
40. Suresh · 1998
41. DIN EN ISO 6892-2:2018. Metallic materials - Tensile testing - Part 2: Method of test at elevated temperature, 2019.
42. Structural and Residual Stress Analysis by Nondestructive Methods A2 in
43. Exploring the Correlation between Subsurface Residual Stresses and Manufacturing Parameters in Laser Powder Bed Fused Ti-6Al-4V10.3390/met9020261 ↗
44. EDDIDAT: a graphical user interface for the analysis of energy-dispersive diffraction data10.1107/S1600576720005506 ↗
45. Connecting Diffraction-Based Strain with Macroscopic Stresses in Laser Powder Bed Fused Ti-6Al-4V10.1007/s11661-020-05711-6 ↗
46. Leyens · 2003
47. Microstructural optimization through heat treatment for enhancing the fracture toughness and fatigue crack growth resistance of selective laser melted Ti 6Al 4V alloy10.1016/j.actamat.2019.03.003 ↗
48. Temperature sensitivity of mechanical properties and microstructure during moderate temperature deformation of selective laser melted Ti-6Al-4V alloy10.1016/j.matchar.2020.110342 ↗
49. The influence of building direction on the fatigue crack propagation behavior of Ti6Al4V alloy produced by selective laser melting10.1016/j.msea.2019.138409 ↗
50. Fatigue crack growth behavior of laser powder bed fusion additive manufactured Ti-6Al-4V: Roles of post heat treatment and build orientation10.1016/j.ijfatigue.2020.105955 ↗
51. 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 ↗
52. Classification of Defect Types in SLM Ti-6Al-V4 by X-ray Refraction Topography
53. High ductility and transformation-induced-plasticity in metastable stainless steel processed by selective laser melting with low power10.1016/j.scriptamat.2019.09.035 ↗
54. Machinability of SLM-produced Ti6Al4V titanium alloy parts10.1016/j.jmapro.2020.07.035 ↗
55. Residual stresses in turning10.1016/j.jmatprotec.2004.06.012 ↗
56. Sub-surface and surface analysis of high speed machined Ti–6Al–4V alloy10.1016/j.msea.2009.12.018 ↗
57. Relaxation of residual stress in shot peened Udimet 720Li under high temperature isothermal fatigue10.1016/j.ijfatigue.2005.07.027 ↗
58. Modelling of Residual Stress Relaxation: A Review
59. Investigation of residual stress relaxation under cyclic load10.1016/S0142-1123(01)00132-3 ↗
60. H. Miao, T. Klotz, D. Delbergue, M. Lévesque, Finite element simulation of shot peened residual stress relaxation under low and high cycle, in: International Conference on Shot Peening, Montreal, Quebec, Canada, 2017, pp. 384-389.
61. Stability of Residual Stresses
62. Damage Investigation in A319 Aluminium Alloy by X-ray Tomography and Digital Volume Correlation duringIn SituHigh-Temperature Fatigue Tests10.1111/str.12193 ↗
63. Crack propagation and fracture toughness of Ti6Al4V alloy produced by selective laser melting
64. Residual stress via the contour method in compact tension specimens produced via selective laser melting10.1016/j.scriptamat.2014.05.016 ↗