Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive Manufacturing
Post-processing heat treatments of Ti-6Al-4V parts produced by additive manufacturing are essential for restoring the peculiar martensitic structure that originates from the extremely high cooling rates typical of this technology. In this study, the influence of a 1050 °C annealing on a Ti-6Al-4V al...
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| Format: | Article |
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MDPI AG
2022-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/7/1084 |
| _version_ | 1827605026255667200 |
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| author | Chiara Paoletti Marcello Cabibbo Eleonora Santecchia Emanuela Cerri Stefano Spigarelli |
| author_facet | Chiara Paoletti Marcello Cabibbo Eleonora Santecchia Emanuela Cerri Stefano Spigarelli |
| author_sort | Chiara Paoletti |
| collection | DOAJ |
| description | Post-processing heat treatments of Ti-6Al-4V parts produced by additive manufacturing are essential for restoring the peculiar martensitic structure that originates from the extremely high cooling rates typical of this technology. In this study, the influence of a 1050 °C annealing on a Ti-6Al-4V alloy, produced by additive manufacturing, on the minimum creep rate dependence on applied stress and temperature, was investigated at 650 °C. Experimental data obtained after two different subcritical annealings were also considered for comparison purposes. The analysis of the experimental creep data demonstrated that the alloy annealed at the highest temperature exhibited lower creep rates. The improved creep response was attributed to the combined effect of the presence of extended <i>α</i>-<i>β</i> interfaces and of a small volume fraction of Ti<sub>3</sub>Al particles. |
| first_indexed | 2024-03-09T06:13:50Z |
| format | Article |
| id | doaj.art-95ad37bb9de846c1b8b175d5340b9937 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T06:13:50Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-95ad37bb9de846c1b8b175d5340b99372023-12-03T11:56:04ZengMDPI AGMetals2075-47012022-06-01127108410.3390/met12071084Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive ManufacturingChiara Paoletti0Marcello Cabibbo1Eleonora Santecchia2Emanuela Cerri3Stefano Spigarelli4Faculty of Engineering, Università degli Studi eCampus, Via Isimbardi 10, 22060 Novedrate, ItalyDIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyDIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyDIA, Università di Parma, V. le G. Usberti 181/A, 43124 Parma, ItalyDIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyPost-processing heat treatments of Ti-6Al-4V parts produced by additive manufacturing are essential for restoring the peculiar martensitic structure that originates from the extremely high cooling rates typical of this technology. In this study, the influence of a 1050 °C annealing on a Ti-6Al-4V alloy, produced by additive manufacturing, on the minimum creep rate dependence on applied stress and temperature, was investigated at 650 °C. Experimental data obtained after two different subcritical annealings were also considered for comparison purposes. The analysis of the experimental creep data demonstrated that the alloy annealed at the highest temperature exhibited lower creep rates. The improved creep response was attributed to the combined effect of the presence of extended <i>α</i>-<i>β</i> interfaces and of a small volume fraction of Ti<sub>3</sub>Al particles.https://www.mdpi.com/2075-4701/12/7/1084creeptitanium alloysadditive manufacturing |
| spellingShingle | Chiara Paoletti Marcello Cabibbo Eleonora Santecchia Emanuela Cerri Stefano Spigarelli Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive Manufacturing Metals creep titanium alloys additive manufacturing |
| title | Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive Manufacturing |
| title_full | Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive Manufacturing |
| title_fullStr | Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive Manufacturing |
| title_full_unstemmed | Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive Manufacturing |
| title_short | Effect of Post-Processing Heat Treatments on Short-Term Creep Response at 650 °C for a Ti-6Al-4V Alloy Produced by Additive Manufacturing |
| title_sort | effect of post processing heat treatments on short term creep response at 650 °c for a ti 6al 4v alloy produced by additive manufacturing |
| topic | creep titanium alloys additive manufacturing |
| url | https://www.mdpi.com/2075-4701/12/7/1084 |
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