Progress in research on cold crucible directional solidification of titanium based alloys
Cold crucible directional solidification (CCDS) is a newly developed technique, which combines the advantages of the cold crucible and continuous melting. It can be applied to directionally solidify reactive, high purity and refractory materials. This paper describes the principle of CCDS and its ch...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2014-07-01
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| Series: | China Foundry |
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| Online Access: | http://www.foundryworld.com/uploadfile/2014090238256417.pdf |
| _version_ | 1819097058412331008 |
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| author | Chen Ruirun Guo Jingjie Chen Xiaoyu |
| author_facet | Chen Ruirun Guo Jingjie Chen Xiaoyu |
| author_sort | Chen Ruirun |
| collection | DOAJ |
| description | Cold crucible directional solidification (CCDS) is a newly developed technique, which combines the advantages of the cold crucible and continuous melting. It can be applied to directionally solidify reactive, high purity and refractory materials. This paper describes the principle of CCDS and its characteristics; development of the measurement and numerical calculation of the magnetic field, flow field and temperature field in CCDS; and the CCDS of Ti based alloys. The paper also reviews original data obtained by some scholars, including the present authors, reported in separate publications in recent years. In Ti based alloys, Ti6Al4V, TiAl alloys and high Nb-containing TiAl alloys, have been directionally solidified in different cold crucibles. The crosssections of the cold crucibles include round, near rectangular and square with different sizes. Tensile testing results show that the elongation of directionally solidified Ti6Al4V can be improved to 12.7% from as cast 5.4%. The strength and the elongation of the directionally solidified Ti47Al2Cr2Nb and Ti44Al6Nb1.0Cr2.0V are 650 MPa/3% and 602.5 MPa/1.20%, respectively. The ingots after CCDS can be used to prepare turbine or engine blades, and are candidates to replace Ni super-alloy at temperatures of 700 to 900 °C. |
| first_indexed | 2024-12-22T00:09:03Z |
| format | Article |
| id | doaj.art-7701414ecc064083b14e15d73fc317a4 |
| institution | Directory Open Access Journal |
| issn | 1672-6421 1672-6421 |
| language | English |
| last_indexed | 2024-12-22T00:09:03Z |
| publishDate | 2014-07-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-7701414ecc064083b14e15d73fc317a42022-12-21T18:45:29ZengFoundry Journal AgencyChina Foundry1672-64211672-64212014-07-01114332338Progress in research on cold crucible directional solidification of titanium based alloysChen Ruirun0Guo Jingjie1Chen Xiaoyu2School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaCold crucible directional solidification (CCDS) is a newly developed technique, which combines the advantages of the cold crucible and continuous melting. It can be applied to directionally solidify reactive, high purity and refractory materials. This paper describes the principle of CCDS and its characteristics; development of the measurement and numerical calculation of the magnetic field, flow field and temperature field in CCDS; and the CCDS of Ti based alloys. The paper also reviews original data obtained by some scholars, including the present authors, reported in separate publications in recent years. In Ti based alloys, Ti6Al4V, TiAl alloys and high Nb-containing TiAl alloys, have been directionally solidified in different cold crucibles. The crosssections of the cold crucibles include round, near rectangular and square with different sizes. Tensile testing results show that the elongation of directionally solidified Ti6Al4V can be improved to 12.7% from as cast 5.4%. The strength and the elongation of the directionally solidified Ti47Al2Cr2Nb and Ti44Al6Nb1.0Cr2.0V are 650 MPa/3% and 602.5 MPa/1.20%, respectively. The ingots after CCDS can be used to prepare turbine or engine blades, and are candidates to replace Ni super-alloy at temperatures of 700 to 900 °C.http://www.foundryworld.com/uploadfile/2014090238256417.pdfcold crucible; directional solidification; numerical calculation; titanium alloy; TiAl; mechanical properties |
| spellingShingle | Chen Ruirun Guo Jingjie Chen Xiaoyu Progress in research on cold crucible directional solidification of titanium based alloys China Foundry cold crucible; directional solidification; numerical calculation; titanium alloy; TiAl; mechanical properties |
| title | Progress in research on cold crucible directional solidification of titanium based alloys |
| title_full | Progress in research on cold crucible directional solidification of titanium based alloys |
| title_fullStr | Progress in research on cold crucible directional solidification of titanium based alloys |
| title_full_unstemmed | Progress in research on cold crucible directional solidification of titanium based alloys |
| title_short | Progress in research on cold crucible directional solidification of titanium based alloys |
| title_sort | progress in research on cold crucible directional solidification of titanium based alloys |
| topic | cold crucible; directional solidification; numerical calculation; titanium alloy; TiAl; mechanical properties |
| url | http://www.foundryworld.com/uploadfile/2014090238256417.pdf |
| work_keys_str_mv | AT chenruirun progressinresearchoncoldcrucibledirectionalsolidificationoftitaniumbasedalloys AT guojingjie progressinresearchoncoldcrucibledirectionalsolidificationoftitaniumbasedalloys AT chenxiaoyu progressinresearchoncoldcrucibledirectionalsolidificationoftitaniumbasedalloys |