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Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting
The tensile performance of Ti6Al4V alloy lattice structure was investigated. Firstly, a face center cubic unit cell with vertical struts (F2CCZ) lattice structure was designed. Then, the structures were fabricated by selective laser melting (SLM) with different aspect ratios. Subsequently, the SLM-e...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034348/ https://www.ncbi.nlm.nih.gov/pubmed/35480447 http://dx.doi.org/10.1039/d1ra02355a |
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author | Yang, Xin Ma, Wenjun Gu, Wenping Zhang, Zhaoyang Wang, Ben Wang, Yan Liu, Shifeng |
author_facet | Yang, Xin Ma, Wenjun Gu, Wenping Zhang, Zhaoyang Wang, Ben Wang, Yan Liu, Shifeng |
author_sort | Yang, Xin |
collection | PubMed |
description | The tensile performance of Ti6Al4V alloy lattice structure was investigated. Firstly, a face center cubic unit cell with vertical struts (F2CCZ) lattice structure was designed. Then, the structures were fabricated by selective laser melting (SLM) with different aspect ratios. Subsequently, the SLM-ed alloys were subjected to double solution-aging to homogenize the microstructure and release residual stress. It is shown that there is only acicular α′ martensite with high dislocation density in the SLM-ed alloy, while the heat-treated alloy has α and β phases (there are multi-scale α laths and nano-scale β particles), and the orientation relationship between the two phases is: [113](β)//[1210](α). The tensile strength of the HT-ed alloys presents a significant increase from 140 ± 18 MPa in the SLM-ed state to 229 ± 5.1 MPa with an aspect ratio of 4. It indicates that the special heat treatment regime can not only homogenize the microstructure of the SLM-ed alloy, but also improve the tensile strength. |
format | Online Article Text |
id | pubmed-9034348 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90343482022-04-26 Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting Yang, Xin Ma, Wenjun Gu, Wenping Zhang, Zhaoyang Wang, Ben Wang, Yan Liu, Shifeng RSC Adv Chemistry The tensile performance of Ti6Al4V alloy lattice structure was investigated. Firstly, a face center cubic unit cell with vertical struts (F2CCZ) lattice structure was designed. Then, the structures were fabricated by selective laser melting (SLM) with different aspect ratios. Subsequently, the SLM-ed alloys were subjected to double solution-aging to homogenize the microstructure and release residual stress. It is shown that there is only acicular α′ martensite with high dislocation density in the SLM-ed alloy, while the heat-treated alloy has α and β phases (there are multi-scale α laths and nano-scale β particles), and the orientation relationship between the two phases is: [113](β)//[1210](α). The tensile strength of the HT-ed alloys presents a significant increase from 140 ± 18 MPa in the SLM-ed state to 229 ± 5.1 MPa with an aspect ratio of 4. It indicates that the special heat treatment regime can not only homogenize the microstructure of the SLM-ed alloy, but also improve the tensile strength. The Royal Society of Chemistry 2021-06-29 /pmc/articles/PMC9034348/ /pubmed/35480447 http://dx.doi.org/10.1039/d1ra02355a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Yang, Xin Ma, Wenjun Gu, Wenping Zhang, Zhaoyang Wang, Ben Wang, Yan Liu, Shifeng Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting |
title | Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting |
title_full | Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting |
title_fullStr | Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting |
title_full_unstemmed | Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting |
title_short | Multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting |
title_sort | multi-scale microstructure high-strength titanium alloy lattice structure manufactured via selective laser melting |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034348/ https://www.ncbi.nlm.nih.gov/pubmed/35480447 http://dx.doi.org/10.1039/d1ra02355a |
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