Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloys
Investment casting has been widely recognized as the best option in producing TiAl components with key benefits of accuracy, versatility and integrity. The collapsibility of ceramic moulds for investment casting is critical in the manufacturing process of TiAl components due to TiAl’s intrinsic brit...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2011-02-01
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| Series: | China Foundry |
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| Online Access: | http://www.foundryworld.com/uploadfile/201131448378849.pdf |
| _version_ | 1819261904314433536 |
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| author | Chen Yanfei Xiao Shulong Tian Jing |
| author_facet | Chen Yanfei Xiao Shulong Tian Jing |
| author_sort | Chen Yanfei |
| collection | DOAJ |
| description | Investment casting has been widely recognized as the best option in producing TiAl components with key benefits of accuracy, versatility and integrity. The collapsibility of ceramic moulds for investment casting is critical in the manufacturing process of TiAl components due to TiAl’s intrinsic brittleness at room temperature. The aim of the present research is to provide a method for production of TiAl components by investment casting in ZrO2 ceramic moulds with improved collapsibility. Slurries prepared with high polymer additions were utilized during the preparation of ceramic moulds. The stress/strain curves obtained from green and baked ceramic moulds demonstrate that the green strength was increased with the application of high polymer, while baked strength decreased, thus the collapsibility of ceramic moulds was improved. It is suggested that this result is related to the burn-out of high polymer which left a lot of cavities. The experimental findings were also verified by the investment casting of “I”- shaped TiAl components. |
| first_indexed | 2024-12-23T19:49:12Z |
| format | Article |
| id | doaj.art-69df18c5725742d99f4b024cdd7cec01 |
| institution | Directory Open Access Journal |
| issn | 1672-6421 |
| language | English |
| last_indexed | 2024-12-23T19:49:12Z |
| publishDate | 2011-02-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-69df18c5725742d99f4b024cdd7cec012022-12-21T17:33:25ZengFoundry Journal AgencyChina Foundry1672-64212011-02-0181913Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloysChen YanfeiXiao ShulongTian JingInvestment casting has been widely recognized as the best option in producing TiAl components with key benefits of accuracy, versatility and integrity. The collapsibility of ceramic moulds for investment casting is critical in the manufacturing process of TiAl components due to TiAl’s intrinsic brittleness at room temperature. The aim of the present research is to provide a method for production of TiAl components by investment casting in ZrO2 ceramic moulds with improved collapsibility. Slurries prepared with high polymer additions were utilized during the preparation of ceramic moulds. The stress/strain curves obtained from green and baked ceramic moulds demonstrate that the green strength was increased with the application of high polymer, while baked strength decreased, thus the collapsibility of ceramic moulds was improved. It is suggested that this result is related to the burn-out of high polymer which left a lot of cavities. The experimental findings were also verified by the investment casting of “I”- shaped TiAl components.http://www.foundryworld.com/uploadfile/201131448378849.pdfcollapsibilityimprovementZrO2 ceramic mouldTiAl alloysinvestment casting |
| spellingShingle | Chen Yanfei Xiao Shulong Tian Jing Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloys China Foundry collapsibility improvement ZrO2 ceramic mould TiAl alloys investment casting |
| title | Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloys |
| title_full | Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloys |
| title_fullStr | Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloys |
| title_full_unstemmed | Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloys |
| title_short | Improvement in collapsibility of ZrO2 ceramic mould for investment casting of TiAl alloys |
| title_sort | improvement in collapsibility of zro2 ceramic mould for investment casting of tial alloys |
| topic | collapsibility improvement ZrO2 ceramic mould TiAl alloys investment casting |
| url | http://www.foundryworld.com/uploadfile/201131448378849.pdf |
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