Deformability and microstructure transformation of PM TiAl alloy prepared by pseudo-HIP technology
Microstructures and deformation properties of Ti-46Al-（Cr,Nb,W,B）alloy consolidated by pseudo-HIP technology were investigated.The results show that the pseudo-HIP temperature has a significant effect on microstructures.When the sintering temperature is 1 100℃,the microstructure of as-pseudo-HIPped...
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| Veröffentlicht in: | Transactions of Nonferrous Metals Society of China 2010-04, Vol.20 (4), p.547-552 |
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| creator | 张伟 刘咏 刘彬 李慧中 唐蓓 |
| description | Microstructures and deformation properties of Ti-46Al-（Cr,Nb,W,B）alloy consolidated by pseudo-HIP technology were investigated.The results show that the pseudo-HIP temperature has a significant effect on microstructures.When the sintering temperature is 1 100℃,the microstructure of as-pseudo-HIPped alloy is similar to that of the prealloyed powder and the interfaces of these powder particles are still discernible,but a nearγmicrostructure appears in particles.Increasing the pressing temperature to 1 200℃develops successfully a homogeneous and fine-grained duplex microstructure.A typically fully lamellar microstructure with residualβphase is developed at 1 300℃.The compact exhibits excellent deformation properties at elevated temperatures. When the compression temperature is higher than 1 100℃,high quality products without cracks can be obtained even if the engineering compression strain is up to 0.8 at strain rates of 10-2-10-3s-1.It can be established that the mechanical twinning and matrix deformation due to ordinary dislocation slip/climb contribute to the whole hot deformation. |
| doi_str_mv | 10.1016/S1003-6326(09)60176-X |
| format | Article |
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When the compression temperature is higher than 1 100℃,high quality products without cracks can be obtained even if the engineering compression strain is up to 0.8 at strain rates of 10-2-10-3s-1.It can be established that the mechanical twinning and matrix deformation due to ordinary dislocation slip/climb contribute to the whole hot deformation.</description><identifier>ISSN: 1003-6326</identifier><identifier>DOI: 10.1016/S1003-6326(09)60176-X</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Alloy powders ; Compressing ; Cracks ; deformability ; Deformation ; Dislocation mobility ; Intermetallic compounds ; Intermetallics ; Microstructure ; powder metallurgy ; pseudo-hot isostatic pressing ; Titanium aluminides ; Titanium base alloys</subject><ispartof>Transactions of Nonferrous Metals Society of China, 2010-04, Vol.20 (4), p.547-552</ispartof><rights>2010 The Nonferrous Metals Society of China</rights><rights>Copyright © Wanfang Data Co. Ltd. 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When the compression temperature is higher than 1 100℃,high quality products without cracks can be obtained even if the engineering compression strain is up to 0.8 at strain rates of 10-2-10-3s-1.It can be established that the mechanical twinning and matrix deformation due to ordinary dislocation slip/climb contribute to the whole hot deformation.</description><subject>Alloy powders</subject><subject>Compressing</subject><subject>Cracks</subject><subject>deformability</subject><subject>Deformation</subject><subject>Dislocation mobility</subject><subject>Intermetallic compounds</subject><subject>Intermetallics</subject><subject>Microstructure</subject><subject>powder metallurgy</subject><subject>pseudo-hot isostatic pressing</subject><subject>Titanium aluminides</subject><subject>Titanium base alloys</subject><issn>1003-6326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqFkE1v1DAQhnMAiVL4CUgWF0AoMHYSJzmhqi20UhGVKFJvlj_GWy9ee2s7lPDrye5WXDnNaPTMjN6nql5R-ECB8o_fKUBT84bxtzC-40B7Xt8-qY7-jZ9Vz3NeA7Qt5_SoUmdoY9pI5bwrM5HBkI3TKeaSJl2mhKQkGfKeKS4GEi25_kpu3Ikn0vs4k23CrUxoiFr6jJOJ9cXlNSmo70L0cTW_qJ5a6TO-fKzH1Y_P5zenF_XVty-XpydXtW6hLTXXZpCjgr7TA7V8VF1HWTs2QycVcI07qjfGNtZSa63hWo2MsY5Zrpiysjmu3h_uPshgZViJdZxSWD6KP6s5r_NvJZDBIqIFYAv95kBvU7yfMBexcVmj9zJgnLIYoR9511O6kN2B3GnJCa3YJreRaRYUxE662EsXO7sCRrGXLm6XvU-HPVxC_3KYRNYOg0bjEuoiTHT_vfD68fNdDKt7t2RSUv-0zqNommGgMAzNXy79mLA</recordid><startdate>20100401</startdate><enddate>20100401</enddate><creator>张伟 刘咏 刘彬 李慧中 唐蓓</creator><general>Elsevier Ltd</general><general>State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China%School of Materials Science and Engineering, Central South University, Changsha 410083, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20100401</creationdate><title>Deformability and microstructure transformation of PM TiAl alloy prepared by pseudo-HIP technology</title><author>张伟 刘咏 刘彬 李慧中 唐蓓</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-6cd8a9b075c81f69b551249385ab06cec4047ddf3ff1fffd6cb922252f6b2bfa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Alloy powders</topic><topic>Compressing</topic><topic>Cracks</topic><topic>deformability</topic><topic>Deformation</topic><topic>Dislocation mobility</topic><topic>Intermetallic compounds</topic><topic>Intermetallics</topic><topic>Microstructure</topic><topic>powder metallurgy</topic><topic>pseudo-hot isostatic pressing</topic><topic>Titanium aluminides</topic><topic>Titanium base alloys</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>张伟 刘咏 刘彬 李慧中 唐蓓</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Transactions of Nonferrous Metals Society of China</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>张伟 刘咏 刘彬 李慧中 唐蓓</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Deformability and microstructure transformation of PM TiAl alloy prepared by pseudo-HIP technology</atitle><jtitle>Transactions of Nonferrous Metals Society of China</jtitle><addtitle>Transactions of Nonferrous Metals Society of China</addtitle><date>2010-04-01</date><risdate>2010</risdate><volume>20</volume><issue>4</issue><spage>547</spage><epage>552</epage><pages>547-552</pages><issn>1003-6326</issn><abstract>Microstructures and deformation properties of Ti-46Al-（Cr,Nb,W,B）alloy consolidated by pseudo-HIP technology were investigated.The results show that the pseudo-HIP temperature has a significant effect on microstructures.When the sintering temperature is 1 100℃,the microstructure of as-pseudo-HIPped alloy is similar to that of the prealloyed powder and the interfaces of these powder particles are still discernible,but a nearγmicrostructure appears in particles.Increasing the pressing temperature to 1 200℃develops successfully a homogeneous and fine-grained duplex microstructure.A typically fully lamellar microstructure with residualβphase is developed at 1 300℃.The compact exhibits excellent deformation properties at elevated temperatures. When the compression temperature is higher than 1 100℃,high quality products without cracks can be obtained even if the engineering compression strain is up to 0.8 at strain rates of 10-2-10-3s-1.It can be established that the mechanical twinning and matrix deformation due to ordinary dislocation slip/climb contribute to the whole hot deformation.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S1003-6326(09)60176-X</doi><tpages>6</tpages></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present); Alma/SFX Local Collection |
| subjects | Alloy powders Compressing Cracks deformability Deformation Dislocation mobility Intermetallic compounds Intermetallics Microstructure powder metallurgy pseudo-hot isostatic pressing Titanium aluminides Titanium base alloys |
| title | Deformability and microstructure transformation of PM TiAl alloy prepared by pseudo-HIP technology |
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