Effect of niobium alloying level on the oxidation behavior of titanium aluminides at 850
This work addresses the alloying of titanium aluminides used in aircraft engine applications and automobiles. The oxidation resistance behavior of two titanium aluminides of α2 ＋ γ （Ti3Al ＋ TiAl） and orthorhombic Ti2NbAl, recognized as candidates for high-temperature applications, was investigated b...
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| Veröffentlicht in: | 矿物冶金与材料学报：英文版 2016, Vol.23 (12), p.1452-1457 |
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| container_title | 矿物冶金与材料学报：英文版 |
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| creator | Alexandra Banu Maria Marcu Simona Petrescu Nicolae Ionescu Alexandru Paraschiv |
| description | This work addresses the alloying of titanium aluminides used in aircraft engine applications and automobiles. The oxidation resistance behavior of two titanium aluminides of α2 ＋ γ （Ti3Al ＋ TiAl） and orthorhombic Ti2NbAl, recognized as candidates for high-temperature applications, was investigated by exposure of the alloys for 100 h in air. Thus, oxidation resistance was expressed as the mass gain rate, whereas surface aspects were analyzed using scanning electron microscopy in conjunction with energy-dispersive X-ray spectroscopy, and the type of oxidation products was analyzed by X-ray diffraction and Raman spectroscopy. The orthorhombic Ti2NbAl alloy was embrittled, and pores and microcracks were formed as a result of oxygen diffusion through the external oxide layer formed during thermal oxidation for 100 h. |
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The oxidation resistance behavior of two titanium aluminides of α2 ＋ γ （Ti3Al ＋ TiAl） and orthorhombic Ti2NbAl, recognized as candidates for high-temperature applications, was investigated by exposure of the alloys for 100 h in air. Thus, oxidation resistance was expressed as the mass gain rate, whereas surface aspects were analyzed using scanning electron microscopy in conjunction with energy-dispersive X-ray spectroscopy, and the type of oxidation products was analyzed by X-ray diffraction and Raman spectroscopy. The orthorhombic Ti2NbAl alloy was embrittled, and pores and microcracks were formed as a result of oxygen diffusion through the external oxide layer formed during thermal oxidation for 100 h.</description><identifier>ISSN: 1674-4799</identifier><identifier>EISSN: 1869-103X</identifier><language>eng</language><subject>Ti3Al ; X-射线衍射 ; 合金化 ; 扫描电子显微镜 ; 抗氧化性能 ; 氧化行为 ; 钛铝合金 ; 飞机发动机</subject><ispartof>矿物冶金与材料学报：英文版, 2016, Vol.23 (12), p.1452-1457</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/85313A/85313A.jpg</thumbnail><link.rule.ids>314,780,784,4024</link.rule.ids></links><search><creatorcontrib>Alexandra Banu Maria Marcu Simona Petrescu Nicolae Ionescu Alexandru Paraschiv</creatorcontrib><title>Effect of niobium alloying level on the oxidation behavior of titanium aluminides at 850</title><title>矿物冶金与材料学报：英文版</title><addtitle>International Journal of Minerals,Metallurgy and Materials</addtitle><description>This work addresses the alloying of titanium aluminides used in aircraft engine applications and automobiles. The oxidation resistance behavior of two titanium aluminides of α2 ＋ γ （Ti3Al ＋ TiAl） and orthorhombic Ti2NbAl, recognized as candidates for high-temperature applications, was investigated by exposure of the alloys for 100 h in air. Thus, oxidation resistance was expressed as the mass gain rate, whereas surface aspects were analyzed using scanning electron microscopy in conjunction with energy-dispersive X-ray spectroscopy, and the type of oxidation products was analyzed by X-ray diffraction and Raman spectroscopy. The orthorhombic Ti2NbAl alloy was embrittled, and pores and microcracks were formed as a result of oxygen diffusion through the external oxide layer formed during thermal oxidation for 100 h.</description><subject>Ti3Al</subject><subject>X-射线衍射</subject><subject>合金化</subject><subject>扫描电子显微镜</subject><subject>抗氧化性能</subject><subject>氧化行为</subject><subject>钛铝合金</subject><subject>飞机发动机</subject><issn>1674-4799</issn><issn>1869-103X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqNjE0OgjAUhBujifhzhxf3JFWghbXBeAAX7EiBFp4prUIhcnsxegBXM5N83yyId4xZ4h9pkC3nznjohzxJ1mTT93dKGeeUeyRLlZKlA6vAoC1waEFobSc0NWg5Sg3WgGsk2BdWwuG8CtmIEW33cRw6Yb7S0KLBSvYgHMQR3ZGVErqX-19uyeGS3s5Xv2ysqZ_zf_7osBXdlDNOkxOLOA_-gt4gXUJD</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>Alexandra Banu Maria Marcu Simona Petrescu Nicolae Ionescu Alexandru Paraschiv</creator><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope></search><sort><creationdate>2016</creationdate><title>Effect of niobium alloying level on the oxidation behavior of titanium aluminides at 850</title><author>Alexandra Banu Maria Marcu Simona Petrescu Nicolae Ionescu Alexandru Paraschiv</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-chongqing_primary_6709265773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Ti3Al</topic><topic>X-射线衍射</topic><topic>合金化</topic><topic>扫描电子显微镜</topic><topic>抗氧化性能</topic><topic>氧化行为</topic><topic>钛铝合金</topic><topic>飞机发动机</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alexandra Banu Maria Marcu Simona Petrescu Nicolae Ionescu Alexandru Paraschiv</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>矿物冶金与材料学报：英文版</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alexandra Banu Maria Marcu Simona Petrescu Nicolae Ionescu Alexandru Paraschiv</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of niobium alloying level on the oxidation behavior of titanium aluminides at 850</atitle><jtitle>矿物冶金与材料学报：英文版</jtitle><addtitle>International Journal of Minerals,Metallurgy and Materials</addtitle><date>2016</date><risdate>2016</risdate><volume>23</volume><issue>12</issue><spage>1452</spage><epage>1457</epage><pages>1452-1457</pages><issn>1674-4799</issn><eissn>1869-103X</eissn><abstract>This work addresses the alloying of titanium aluminides used in aircraft engine applications and automobiles. The oxidation resistance behavior of two titanium aluminides of α2 ＋ γ （Ti3Al ＋ TiAl） and orthorhombic Ti2NbAl, recognized as candidates for high-temperature applications, was investigated by exposure of the alloys for 100 h in air. Thus, oxidation resistance was expressed as the mass gain rate, whereas surface aspects were analyzed using scanning electron microscopy in conjunction with energy-dispersive X-ray spectroscopy, and the type of oxidation products was analyzed by X-ray diffraction and Raman spectroscopy. The orthorhombic Ti2NbAl alloy was embrittled, and pores and microcracks were formed as a result of oxygen diffusion through the external oxide layer formed during thermal oxidation for 100 h.</abstract></addata></record> |
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| identifier | ISSN: 1674-4799 |
| ispartof | 矿物冶金与材料学报：英文版, 2016, Vol.23 (12), p.1452-1457 |
| issn | 1674-4799 1869-103X |
| language | eng |
| recordid | cdi_chongqing_primary_670926577 |
| source | ProQuest Central UK/Ireland; Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings; ProQuest Central |
| subjects | Ti3Al X-射线衍射 合金化 扫描电子显微镜 抗氧化性能 氧化行为 钛铝合金 飞机发动机 |
| title | Effect of niobium alloying level on the oxidation behavior of titanium aluminides at 850 |
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