Influence of Laser Remelting on Creep Resistance in Ti-6Al-4V Alloy with Thermal Barrier Coating
Source abstract
Abstract
Ti-6Al-4V alloys with a thermal barrier coating (TBC) have been applied in aeronautical components as turbine blades to provide oxidation resistance and thermal protection, enabling higher operating temperatures and extending component lifespan. Research into TBCs with laser surface modification has investigated improving their mechanical and thermal properties. This study assessed the creep behavior of Ti-6Al-4V alloy with a TBC, where the coating was applied via CO2 laser-remelted plasma spraying. Creep tests were conducted at a constant temperature and a load ranging from 500 to 700 °C at 125 MPa. The microstructure and fractography of the specimens were also investigated. The investigation also included microstructural and fractographic analyses of the specimens. The results indicate that the laser-remelted TBC provided effective thermal protection and increased oxidation resistance, with the stationary creep rate at 600 °C reduced by 50% and the creep rupture life extended by 20%. Observations revealed typical ductile fractures characterized by equiaxed dimples and a homogeneous microstructure with an equiaxed dual-phase (α+β) structure near the fracture zone.
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Research context
OpenAlex topics: High Entropy Alloys Studies · Titanium Alloys Microstructure and Properties · Intermetallics and Advanced Alloy Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory of Mechanical Behavior of Metals, Science and Technology Institute, Federal University of São Paulo, São José dos Campos 12231-280, SP, Brazil
Institute of Science and Technology, Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José dos Campos 12245-000, SP, Brazil
ProLaser Laboratory, Science and Technology Institute, Federal University of São Paulo, São José dos Campos 12231-280, SP, Brazil
Funding
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brazil (CAPES)
References (41)
Show source-provided references
1. Materials Selection of Optimized Titanium Alloys for Aircraft Applications10.1590/1980-5373-mr-2017-0979 ↗
2. A comprehensive review on high temperature alloys used in gas turbines
3. Multi-axis low-cycle creep/fatigue life prediction of high-pressure turbine blades based on a new critical plane damage parameter10.1016/j.engfailanal.2019.104159 ↗
4. Gao, M.C., Yeh, J.W., Liaw, P.K., and Zhang, Y. (2016). High-Entropy Alloys, Springer.10.1007/978-3-319-27013-5 ↗
5. Science and technology in high-entropy alloys10.1007/s40843-017-9195-8 ↗
6. Creep and high temperature fatigue performance of as build selective laser melted Ti-based 6Al-4V titanium alloy10.1016/j.engfailanal.2020.104477 ↗
7. Investigation on the microstructure and creep behavior of laser remelted thermal barrier coating10.1016/j.surfcoat.2019.04.068 ↗
8. Thermal conductivity study of ZrO2-YO1.5-NbO2.5 TBC10.1016/j.jmrt.2022.07.037 ↗
9. Effect of high temperature oxidation on Inconel 718 and Inconel 718/YSZ/Gd2Zr2O710.1088/2053-1591/ab26d8 ↗
10. Evans, R.W., and Wilshire, B. (1993). Introduction to Creep, Institute of Materials.
11. Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy10.1155/2023/4414502 ↗
12. Rapid screening of creep resistance in additive manufactured Ti-6Al-4V alloy10.1016/j.msea.2024.146999 ↗
13. A review on the effect of creep and microstructural change under elevated temperature of Ti6Al4V alloy for Turbine engine Application10.1016/j.matpr.2017.01.019 ↗
14. Experimental study for the effective and sustainable repair and maintenance of bars made of Ti-6Al-4V alloy. Application to the aeronautic industry10.1016/j.jclepro.2017.06.095 ↗
15. Perspectives on Titanium Science and Technology10.1016/j.actamat.2012.10.043 ↗
16. Non-uniform mechanical behaviour of uniaxially rolled Ti–6Al–4V with micro-texture regions10.1016/j.msea.2023.144813 ↗
17. Ti-Fe intermetallics analysis and control in joining titanium alloy and stainless steel by Laser Metal Deposition10.1016/j.jmatprotec.2016.11.010 ↗
18. Development and analysis of thermal barrier coatings on gas turbine blades—A Review10.1016/j.matpr.2018.01.060 ↗
19. Comparison of microstructure and oxidation behavior of CoNiCrAlY coatings produced by APS, SSAPS, D-gun, HVOF and CGDS techniques10.1016/j.vacuum.2020.109609 ↗
20. Comparison of microstructures and oxidation behaviors of Ytria And magnesia stabilized zirconia thermal barrier coatings (TBC)10.17222/mit.2017.150 ↗
21. Evaluation of oxidation and thermal cyclic behavior of YSZ, Gd2Zr2O7 and YSZ/Gd2Zr2O7 TBCs10.1016/j.surfcoat.2018.11.055 ↗
22. Investigation of hot corrosion behavior of thermal barrier coating (TBC) systems with rare earth contents10.1007/s12517-018-3625-0 ↗
23. Oxidation Behavior of NiCrYSZ Thermal Barrier Coatings (TBCs)10.1515/chem-2018-0096 ↗
24. Ceramic Top Coats of Plasma-Sprayed Thermal Barrier Coatings: Materials, Processes, and Properties10.1007/s11666-017-0597-7 ↗
25. Gas turbine coatings—An overview10.1016/j.engfailanal.2012.07.007 ↗
26. A Perspective on Plasma Spray Technology10.1007/s11090-014-9600-y ↗
27. Supersonic Plasma Spray Deposition of CoNiCrAlY Coatings on Ti-6Al-4V Alloy10.1007/s11666-017-0563-4 ↗
28. Modification of thermal barrier coating architecture by in situ laser remelting10.1016/j.jeurceramsoc.2006.01.003 ↗
29. Effects of Laser Remelting and Oxidation on NiCrAlY/8Y2O3-ZrO2 Thermal Barrier Coatings10.1007/s11666-017-0679-6 ↗
30. Improving the hot corrosion resistance of plasma sprayed ceria–yttria stabilized zirconia thermal barrier coatings by laser surface treatment10.1016/j.matdes.2013.12.075 ↗
31. An investigation on the microstructure and oxidation behavior of laser remelted air plasma sprayed thermal barrier coatings10.1016/j.surfcoat.2012.03.026 ↗
32. Effects of the laser treatment and thermal oxidation behavior of CoNiCrAlY/ZrO2–8wt%Y2O3 thermal barrier coating10.1016/j.jmatprotec.2007.11.192 ↗
33. Laser remelting of plasma sprayed thermal barrier coatings
34. Determination of Creep Parameters of Ti-6Al-4V with Bimodal and Equiaxed Microstructure10.4028/www.scientific.net/DDF.326-328.520 ↗
35. Plasma-sprayed coatings for oxidation protection on creep of the Ti–6Al–4V alloy10.3184/096034005782744227 ↗
36. Effect of nitrogen high temperature plasma based ion implantation on the creep behavior of Ti-6Al-4V alloy10.1016/j.apsusc.2014.05.047 ↗
37. Comparative study of creep resistance of a Ti-6Al-4V alloy with metallic and ceramic coatings10.4028/www.scientific.net/MSF.802.472 ↗
38. (2018). Standard Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials (Standard No. ASTM E139).
39. (2015). Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate (Standard No. ASTM B265).
40. History dependent creep of Ti-6Al-4V alloy10.1179/msc.1978.12.3.163 ↗
41. (2013). Standard Test Methods for Determining Average Grain Size (Standard No. ASTM E112).