Single step centrifugal casting TiAl automotive valves
Centrifugal casting has been used to cast TiAl car valves. The casting has been carried out in vacuum using induction melting furnace coupled to a CaO crucible, which offers a maximum superheat of approximately 180 °C and much improved filling over normal cold wall induction furnace. In this work, t...
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| Veröffentlicht in: | Intermetallics 2005-09, Vol.13 (9), p.925-928 |
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| container_title | Intermetallics |
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| creator | Liu, K. Ma, Y.C. Gao, M. Rao, G.B. Li, Y.Y. Wei, K. Wu, Xinhua Loretto, M.H. |
| description | Centrifugal casting has been used to cast TiAl car valves. The casting has been carried out in vacuum using induction melting furnace coupled to a CaO crucible, which offers a maximum superheat of approximately 180
°C and much improved filling over normal cold wall induction furnace. In this work, the effects of the casting conditions, including superheat, rotation speed at one mould temperature have been investigated in terms of the product integrity and porosity and the microstructure of the valves. The mechanical properties and oxygen contents of cast stems with various degrees of superheat have been measured at room temperature. The as-cast car valves and some HIPped car valves have been successfully engine-tested. The feasibility for mass production of TiAl car valves and realistic costing for producing car valves using centrifugal casting and CaO crucible are currently also being assessed. |
| doi_str_mv | 10.1016/j.intermet.2004.12.004 |
| format | Article |
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°C and much improved filling over normal cold wall induction furnace. In this work, the effects of the casting conditions, including superheat, rotation speed at one mould temperature have been investigated in terms of the product integrity and porosity and the microstructure of the valves. The mechanical properties and oxygen contents of cast stems with various degrees of superheat have been measured at room temperature. The as-cast car valves and some HIPped car valves have been successfully engine-tested. The feasibility for mass production of TiAl car valves and realistic costing for producing car valves using centrifugal casting and CaO crucible are currently also being assessed.</description><identifier>ISSN: 0966-9795</identifier><identifier>EISSN: 1879-0216</identifier><identifier>DOI: 10.1016/j.intermet.2004.12.004</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>A. Titanium aluminides, based on TiAl ; B. Mechanical properties at ambient temperature ; C. Casting ; D. Microstructure ; G. Automotive uses, including engines</subject><ispartof>Intermetallics, 2005-09, Vol.13 (9), p.925-928</ispartof><rights>2004 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-7f69502254eaed7ed0c58dc75c50198a3606677f6f58243aae77c56864b5a51f3</citedby><cites>FETCH-LOGICAL-c343t-7f69502254eaed7ed0c58dc75c50198a3606677f6f58243aae77c56864b5a51f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.intermet.2004.12.004$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Liu, K.</creatorcontrib><creatorcontrib>Ma, Y.C.</creatorcontrib><creatorcontrib>Gao, M.</creatorcontrib><creatorcontrib>Rao, G.B.</creatorcontrib><creatorcontrib>Li, Y.Y.</creatorcontrib><creatorcontrib>Wei, K.</creatorcontrib><creatorcontrib>Wu, Xinhua</creatorcontrib><creatorcontrib>Loretto, M.H.</creatorcontrib><title>Single step centrifugal casting TiAl automotive valves</title><title>Intermetallics</title><description>Centrifugal casting has been used to cast TiAl car valves. The casting has been carried out in vacuum using induction melting furnace coupled to a CaO crucible, which offers a maximum superheat of approximately 180
°C and much improved filling over normal cold wall induction furnace. In this work, the effects of the casting conditions, including superheat, rotation speed at one mould temperature have been investigated in terms of the product integrity and porosity and the microstructure of the valves. The mechanical properties and oxygen contents of cast stems with various degrees of superheat have been measured at room temperature. The as-cast car valves and some HIPped car valves have been successfully engine-tested. The feasibility for mass production of TiAl car valves and realistic costing for producing car valves using centrifugal casting and CaO crucible are currently also being assessed.</description><subject>A. Titanium aluminides, based on TiAl</subject><subject>B. Mechanical properties at ambient temperature</subject><subject>C. Casting</subject><subject>D. Microstructure</subject><subject>G. Automotive uses, including engines</subject><issn>0966-9795</issn><issn>1879-0216</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkD1PwzAYhC0EEqXwF1AmtoTXTmwnG1XFl1SJgTJbxnlTuXKSYjuR-Pe4KsxMN9xzJ90RckuhoEDF_b6wQ0TfYywYQFVQViQ5IwtayyYHRsU5WUAjRN7Ihl-SqxD2AFRCyRdEvNth5zALEQ-ZwSF620077TKjQ0xWtrUrl-kpjv0Y7YzZrN2M4ZpcdNoFvPnVJfl4etyuX_LN2_PrerXJTVmVMZedaDgwxivU2EpswfC6NZIbDrSpdSlACJmojtesKrVGKQ0Xtag-uea0K5fk7tR78OPXhCGq3gaDzukBxykoVh-HcZpAcQKNH0Pw2KmDt73234qCOt6k9urvJnW8SVGmkqTgwymIacZs0atgLA4GW-vRRNWO9r-KHyI-dB4</recordid><startdate>20050901</startdate><enddate>20050901</enddate><creator>Liu, K.</creator><creator>Ma, Y.C.</creator><creator>Gao, M.</creator><creator>Rao, G.B.</creator><creator>Li, Y.Y.</creator><creator>Wei, K.</creator><creator>Wu, Xinhua</creator><creator>Loretto, M.H.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20050901</creationdate><title>Single step centrifugal casting TiAl automotive valves</title><author>Liu, K. ; Ma, Y.C. ; Gao, M. ; Rao, G.B. ; Li, Y.Y. ; Wei, K. ; Wu, Xinhua ; Loretto, M.H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-7f69502254eaed7ed0c58dc75c50198a3606677f6f58243aae77c56864b5a51f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>A. Titanium aluminides, based on TiAl</topic><topic>B. Mechanical properties at ambient temperature</topic><topic>C. Casting</topic><topic>D. Microstructure</topic><topic>G. Automotive uses, including engines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, K.</creatorcontrib><creatorcontrib>Ma, Y.C.</creatorcontrib><creatorcontrib>Gao, M.</creatorcontrib><creatorcontrib>Rao, G.B.</creatorcontrib><creatorcontrib>Li, Y.Y.</creatorcontrib><creatorcontrib>Wei, K.</creatorcontrib><creatorcontrib>Wu, Xinhua</creatorcontrib><creatorcontrib>Loretto, M.H.</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Intermetallics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, K.</au><au>Ma, Y.C.</au><au>Gao, M.</au><au>Rao, G.B.</au><au>Li, Y.Y.</au><au>Wei, K.</au><au>Wu, Xinhua</au><au>Loretto, M.H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Single step centrifugal casting TiAl automotive valves</atitle><jtitle>Intermetallics</jtitle><date>2005-09-01</date><risdate>2005</risdate><volume>13</volume><issue>9</issue><spage>925</spage><epage>928</epage><pages>925-928</pages><issn>0966-9795</issn><eissn>1879-0216</eissn><abstract>Centrifugal casting has been used to cast TiAl car valves. The casting has been carried out in vacuum using induction melting furnace coupled to a CaO crucible, which offers a maximum superheat of approximately 180
°C and much improved filling over normal cold wall induction furnace. In this work, the effects of the casting conditions, including superheat, rotation speed at one mould temperature have been investigated in terms of the product integrity and porosity and the microstructure of the valves. The mechanical properties and oxygen contents of cast stems with various degrees of superheat have been measured at room temperature. The as-cast car valves and some HIPped car valves have been successfully engine-tested. The feasibility for mass production of TiAl car valves and realistic costing for producing car valves using centrifugal casting and CaO crucible are currently also being assessed.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.intermet.2004.12.004</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0966-9795 |
| ispartof | Intermetallics, 2005-09, Vol.13 (9), p.925-928 |
| issn | 0966-9795 1879-0216 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | A. Titanium aluminides, based on TiAl B. Mechanical properties at ambient temperature C. Casting D. Microstructure G. Automotive uses, including engines |
| title | Single step centrifugal casting TiAl automotive valves |
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