Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V
This paper reports the computational approach adopted for thermo-diffusion kinetics to rationalize homogenously distributed nanoscale vanadium-rich clusters formed within the martensite laths of Ti6Al4V alloy printed using laser powder bed fusion at an energy density of $52.08\,{\rm J}/{\rm mm}^{3}...
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| Language: | English |
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Taylor & Francis Group
2020-10-01
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| Series: | Materials Research Letters |
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| Online Access: | http://dx.doi.org/10.1080/21663831.2020.1772396 |
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doaj-706ff46805894a12975bafb70353150b2020-11-25T03:33:52ZengTaylor & Francis GroupMaterials Research Letters2166-38312020-10-0181038338910.1080/21663831.2020.17723961772396Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4VMangesh V. Pantawane0Sriswaroop Dasari1Srinivas Aditya Mantri2Rajarshi Banerjee3Narendra B. Dahotre4Department of Materials Science and Engineering, University of North TexasDepartment of Materials Science and Engineering, University of North TexasCenter for Agile and Adaptive Additive Manufacturing, University of North TexasDepartment of Materials Science and Engineering, University of North TexasDepartment of Materials Science and Engineering, University of North TexasThis paper reports the computational approach adopted for thermo-diffusion kinetics to rationalize homogenously distributed nanoscale vanadium-rich clusters formed within the martensite laths of Ti6Al4V alloy printed using laser powder bed fusion at an energy density of $52.08\,{\rm J}/{\rm mm}^{3} $. The computations were conducted using a finite element method based thermal model, which predicted extremely rapid thermokinetics associated with the thermal cycles experienced at any given location of LPBF-printed Ti6Al4V. The numerically estimated effective V diffusion length of 6.61 nm indicated kinetic-limited diffusion resulting in V nano-clusters and are in good agreement with the atom probe tomography data giving a value of half the inter-cluster spacing of 7 nm.http://dx.doi.org/10.1080/21663831.2020.1772396additive manufacturingselective laser meltingvanadium enrichmentthermal modeling |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Mangesh V. Pantawane Sriswaroop Dasari Srinivas Aditya Mantri Rajarshi Banerjee Narendra B. Dahotre |
| spellingShingle |
Mangesh V. Pantawane Sriswaroop Dasari Srinivas Aditya Mantri Rajarshi Banerjee Narendra B. Dahotre Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V Materials Research Letters additive manufacturing selective laser melting vanadium enrichment thermal modeling |
| author_facet |
Mangesh V. Pantawane Sriswaroop Dasari Srinivas Aditya Mantri Rajarshi Banerjee Narendra B. Dahotre |
| author_sort |
Mangesh V. Pantawane |
| title |
Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V |
| title_short |
Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V |
| title_full |
Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V |
| title_fullStr |
Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V |
| title_full_unstemmed |
Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V |
| title_sort |
rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured ti6al4v |
| publisher |
Taylor & Francis Group |
| series |
Materials Research Letters |
| issn |
2166-3831 |
| publishDate |
2020-10-01 |
| description |
This paper reports the computational approach adopted for thermo-diffusion kinetics to rationalize homogenously distributed nanoscale vanadium-rich clusters formed within the martensite laths of Ti6Al4V alloy printed using laser powder bed fusion at an energy density of $52.08\,{\rm J}/{\rm mm}^{3} $. The computations were conducted using a finite element method based thermal model, which predicted extremely rapid thermokinetics associated with the thermal cycles experienced at any given location of LPBF-printed Ti6Al4V. The numerically estimated effective V diffusion length of 6.61 nm indicated kinetic-limited diffusion resulting in V nano-clusters and are in good agreement with the atom probe tomography data giving a value of half the inter-cluster spacing of 7 nm. |
| topic |
additive manufacturing selective laser melting vanadium enrichment thermal modeling |
| url |
http://dx.doi.org/10.1080/21663831.2020.1772396 |
| work_keys_str_mv |
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