Reaction mechanism in high Nb containing TiA1 alloy by elemental powder metallurgy
High Nb containing TiAl alloy was fabricated in argon atmosphere by reactive hot pressing process. Reaction mechanism was investigated by means ofmicrostructural analyses and thermodynamic calculations. The results show that it is feasible to prepare high Nb containing TiAl alloy with fine lamellar...
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| Veröffentlicht in: | Transactions of Nonferrous Metals Society of China 2006, Vol.16 (4), p.853-857 |
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| container_title | Transactions of Nonferrous Metals Society of China |
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| creator | 王衍行 林均品 贺跃辉 王艳丽 林志 陈国良 |
| description | High Nb containing TiAl alloy was fabricated in argon atmosphere by reactive hot pressing process. Reaction mechanism was investigated by means ofmicrostructural analyses and thermodynamic calculations. The results show that it is feasible to prepare high Nb containing TiAl alloy with fine lamellar colonies by reactive hot pressing process. The reaction between Ti and Al powders is dominant in Ti-Al-Nb system. Nb powders dissolve into the Ti-Al matrix by diffusion. Pore nests are formed in situ after Nb powders diffusion. The hot pressing atmosphere is optimized by thermodynamic calculations. Vacuum or argon protective atmosphere should be adopted. |
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Reaction mechanism was investigated by means ofmicrostructural analyses and thermodynamic calculations. The results show that it is feasible to prepare high Nb containing TiAl alloy with fine lamellar colonies by reactive hot pressing process. The reaction between Ti and Al powders is dominant in Ti-Al-Nb system. Nb powders dissolve into the Ti-Al matrix by diffusion. Pore nests are formed in situ after Nb powders diffusion. The hot pressing atmosphere is optimized by thermodynamic calculations. Vacuum or argon protective atmosphere should be adopted.</description><identifier>ISSN: 1003-6326</identifier><language>eng</language><subject>TiAl合金 ; 反应机理 ; 热力学 ; 粉末冶金</subject><ispartof>Transactions of Nonferrous Metals Society of China, 2006, Vol.16 (4), p.853-857</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85276X/85276X.jpg</thumbnail><link.rule.ids>314,776,780,4010</link.rule.ids></links><search><creatorcontrib>王衍行 林均品 贺跃辉 王艳丽 林志 陈国良</creatorcontrib><title>Reaction mechanism in high Nb containing TiA1 alloy by elemental powder metallurgy</title><title>Transactions of Nonferrous Metals Society of China</title><addtitle>Transactions of Nonferrous Metals Society of China</addtitle><description>High Nb containing TiAl alloy was fabricated in argon atmosphere by reactive hot pressing process. Reaction mechanism was investigated by means ofmicrostructural analyses and thermodynamic calculations. The results show that it is feasible to prepare high Nb containing TiAl alloy with fine lamellar colonies by reactive hot pressing process. The reaction between Ti and Al powders is dominant in Ti-Al-Nb system. Nb powders dissolve into the Ti-Al matrix by diffusion. Pore nests are formed in situ after Nb powders diffusion. The hot pressing atmosphere is optimized by thermodynamic calculations. Vacuum or argon protective atmosphere should be adopted.</description><subject>TiAl合金</subject><subject>反应机理</subject><subject>热力学</subject><subject>粉末冶金</subject><issn>1003-6326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNjMsKwjAURLNQsD7-4eK-kD5IcSmiuHJRupc03iZX00SbivTvzcIPcDUMZ87MWJJxXqSiyMWCLUO4c16WQmQJq2uUaiTvoEdlpKPQAzkwpA1cWlDejZIcOQ0N7TOQ1voJ2gnQYo-RWXj6zw2HqMdi34Oe1mzeSRtw88sV256OzeGcKuOdfsWvayvVoyOL1zyveLXjWfHX6Au08z3_</recordid><startdate>2006</startdate><enddate>2006</enddate><creator>王衍行 林均品 贺跃辉 王艳丽 林志 陈国良</creator><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope></search><sort><creationdate>2006</creationdate><title>Reaction mechanism in high Nb containing TiA1 alloy by elemental powder metallurgy</title><author>王衍行 林均品 贺跃辉 王艳丽 林志 陈国良</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-chongqing_backfile_227079013</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>TiAl合金</topic><topic>反应机理</topic><topic>热力学</topic><topic>粉末冶金</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>王衍行 林均品 贺跃辉 王艳丽 林志 陈国良</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><jtitle>Transactions of Nonferrous Metals Society of China</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>王衍行 林均品 贺跃辉 王艳丽 林志 陈国良</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reaction mechanism in high Nb containing TiA1 alloy by elemental powder metallurgy</atitle><jtitle>Transactions of Nonferrous Metals Society of China</jtitle><addtitle>Transactions of Nonferrous Metals Society of China</addtitle><date>2006</date><risdate>2006</risdate><volume>16</volume><issue>4</issue><spage>853</spage><epage>857</epage><pages>853-857</pages><issn>1003-6326</issn><abstract>High Nb containing TiAl alloy was fabricated in argon atmosphere by reactive hot pressing process. Reaction mechanism was investigated by means ofmicrostructural analyses and thermodynamic calculations. The results show that it is feasible to prepare high Nb containing TiAl alloy with fine lamellar colonies by reactive hot pressing process. The reaction between Ti and Al powders is dominant in Ti-Al-Nb system. Nb powders dissolve into the Ti-Al matrix by diffusion. Pore nests are formed in situ after Nb powders diffusion. The hot pressing atmosphere is optimized by thermodynamic calculations. Vacuum or argon protective atmosphere should be adopted.</abstract></addata></record> |
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| identifier | ISSN: 1003-6326 |
| ispartof | Transactions of Nonferrous Metals Society of China, 2006, Vol.16 (4), p.853-857 |
| issn | 1003-6326 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | TiAl合金 反应机理 热力学 粉末冶金 |
| title | Reaction mechanism in high Nb containing TiA1 alloy by elemental powder metallurgy |
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