Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusion
In this work, the various amount of Nb powder was mechanically mixed into the Cu–Al–Mn shape memory alloys (SMAs) to prepare quaternary SMAs by laser powder bed fusion (LPBF). Altered microstructure, transformation behaviour of alloys and its underlying mechanisms were analyzed. Corresponding shape...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542400440X |
| _version_ | 1827310756054433792 |
|---|---|
| author | Xiaoying Xi Hao Tang Jiantao Zhang Xingyi Li Zhiyu Xiao |
| author_facet | Xiaoying Xi Hao Tang Jiantao Zhang Xingyi Li Zhiyu Xiao |
| author_sort | Xiaoying Xi |
| collection | DOAJ |
| description | In this work, the various amount of Nb powder was mechanically mixed into the Cu–Al–Mn shape memory alloys (SMAs) to prepare quaternary SMAs by laser powder bed fusion (LPBF). Altered microstructure, transformation behaviour of alloys and its underlying mechanisms were analyzed. Corresponding shape memory effect (SME) was also studied. Result shows that Nb content has significant effect on the microstructure, phase transition temperatures (TTs) and SME. The microstructure of the alloy was refined by addition of appropriate Nb content. The formation of precipitates and massive grain boundaries after the addition of Nb caused a reduction of TTs and wide thermal hysteresis. Sample with 1 at%Nb containing fine and small volume fraction precipitate shows the best available strain. |
| first_indexed | 2024-03-07T21:43:56Z |
| format | Article |
| id | doaj.art-e0f818319c55413588bb4ac0251045f4 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:05:03Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-e0f818319c55413588bb4ac0251045f42024-03-24T06:58:30ZengElsevierJournal of Materials Research and Technology2238-78542024-03-012941634172Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusionXiaoying Xi0Hao Tang1Jiantao Zhang2Xingyi Li3Zhiyu Xiao4National Metal Near Net Forming Engineering Technology Research Center, South China University of Technology, Guangdong, Guangzhou, 510640, ChinaNational Metal Near Net Forming Engineering Technology Research Center, South China University of Technology, Guangdong, Guangzhou, 510640, ChinaCorresponding author.; National Metal Near Net Forming Engineering Technology Research Center, South China University of Technology, Guangdong, Guangzhou, 510640, ChinaNational Metal Near Net Forming Engineering Technology Research Center, South China University of Technology, Guangdong, Guangzhou, 510640, ChinaCorresponding author.; National Metal Near Net Forming Engineering Technology Research Center, South China University of Technology, Guangdong, Guangzhou, 510640, ChinaIn this work, the various amount of Nb powder was mechanically mixed into the Cu–Al–Mn shape memory alloys (SMAs) to prepare quaternary SMAs by laser powder bed fusion (LPBF). Altered microstructure, transformation behaviour of alloys and its underlying mechanisms were analyzed. Corresponding shape memory effect (SME) was also studied. Result shows that Nb content has significant effect on the microstructure, phase transition temperatures (TTs) and SME. The microstructure of the alloy was refined by addition of appropriate Nb content. The formation of precipitates and massive grain boundaries after the addition of Nb caused a reduction of TTs and wide thermal hysteresis. Sample with 1 at%Nb containing fine and small volume fraction precipitate shows the best available strain.http://www.sciencedirect.com/science/article/pii/S223878542400440XLaser powder bed fusionCu–Al–Mn–Nb alloyShape memory effectPhase transformation behaviour |
| spellingShingle | Xiaoying Xi Hao Tang Jiantao Zhang Xingyi Li Zhiyu Xiao Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusion Journal of Materials Research and Technology Laser powder bed fusion Cu–Al–Mn–Nb alloy Shape memory effect Phase transformation behaviour |
| title | Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusion |
| title_full | Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusion |
| title_fullStr | Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusion |
| title_full_unstemmed | Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusion |
| title_short | Unraveling effect of Nb addition on the microstructure, phase transformation behaviour and shape memory effect of CuAlMn alloy fabricated by laser powder bed fusion |
| title_sort | unraveling effect of nb addition on the microstructure phase transformation behaviour and shape memory effect of cualmn alloy fabricated by laser powder bed fusion |
| topic | Laser powder bed fusion Cu–Al–Mn–Nb alloy Shape memory effect Phase transformation behaviour |
| url | http://www.sciencedirect.com/science/article/pii/S223878542400440X |
| work_keys_str_mv | AT xiaoyingxi unravelingeffectofnbadditiononthemicrostructurephasetransformationbehaviourandshapememoryeffectofcualmnalloyfabricatedbylaserpowderbedfusion AT haotang unravelingeffectofnbadditiononthemicrostructurephasetransformationbehaviourandshapememoryeffectofcualmnalloyfabricatedbylaserpowderbedfusion AT jiantaozhang unravelingeffectofnbadditiononthemicrostructurephasetransformationbehaviourandshapememoryeffectofcualmnalloyfabricatedbylaserpowderbedfusion AT xingyili unravelingeffectofnbadditiononthemicrostructurephasetransformationbehaviourandshapememoryeffectofcualmnalloyfabricatedbylaserpowderbedfusion AT zhiyuxiao unravelingeffectofnbadditiononthemicrostructurephasetransformationbehaviourandshapememoryeffectofcualmnalloyfabricatedbylaserpowderbedfusion |