Effects of N/C Ratio on Solidification Behaviors of Novel Nb-Bearing Austenitic Heat-Resistant Cast Steels for Exhaust Components of Gasoline Engines
In order to comply with more stringent environmental and fuel consumption regulations, novel Nb-bearing austenitic heat-resistant cast steels that withstand exhaust temperatures as high as 1,323 K (1,050 °C) is urgently demanded from automotive industries. In the current research, the solidification...
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| Veröffentlicht in: | Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2017-03, Vol.48 (3), p.1151-1162 |
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| container_title | Metallurgical and materials transactions. A, Physical metallurgy and materials science |
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| creator | Zhang, Yinhui Li, Mei Godlewski, Larry A. Zindel, Jacob W. Feng, Qiang |
| description | In order to comply with more stringent environmental and fuel consumption regulations, novel Nb-bearing austenitic heat-resistant cast steels that withstand exhaust temperatures as high as 1,323 K (1,050 °C) is urgently demanded from automotive industries. In the current research, the solidification behavior of these alloys with variations of N/C ratio is investigated. Directional solidification methods were carried out to examine the microstructural development in mushy zones. Computational thermodynamic calculations under partial equilibrium conditions were performed to predict the solidification sequence of different phases. Microstructural characterization of the mushy zones indicates that N/C ratio significantly influenced the stability of
γ
-austenite and the precipitation temperature of NbC/Nb(C,N), thereby altering the solidification path, as well as the morphology and distribution of NbC/Nb(C,N) and
γ
-ferrite. The solidification sequence of different phases predicted by thermodynamic software agreed well with the experimental results, except the specific precipitation temperatures. The generated data and fundamental understanding will be helpful for the application of computational thermodynamic methods to predict the as-cast microstructure of Nb-bearing austenitic heat-resistant steels. |
| doi_str_mv | 10.1007/s11661-016-3920-x |
| format | Article |
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γ
-austenite and the precipitation temperature of NbC/Nb(C,N), thereby altering the solidification path, as well as the morphology and distribution of NbC/Nb(C,N) and
γ
-ferrite. The solidification sequence of different phases predicted by thermodynamic software agreed well with the experimental results, except the specific precipitation temperatures. The generated data and fundamental understanding will be helpful for the application of computational thermodynamic methods to predict the as-cast microstructure of Nb-bearing austenitic heat-resistant steels.</description><identifier>ISSN: 1073-5623</identifier><identifier>EISSN: 1543-1940</identifier><identifier>DOI: 10.1007/s11661-016-3920-x</identifier><identifier>CODEN: MMTAEB</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Austenitic stainless steel ; Austenitic stainless steels ; Automotive components ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Component parts ; Heat resistance ; Heat resistant steels ; Materials Science ; Metallic Materials ; Metallurgy ; Microstructure ; Mushy zones ; Nanotechnology ; Precipitation (chemistry) ; Solidification ; Structural Materials ; Surfaces and Interfaces ; Thermodynamics ; Thin Films</subject><ispartof>Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2017-03, Vol.48 (3), p.1151-1162</ispartof><rights>The Minerals, Metals & Materials Society and ASM International 2016</rights><rights>Metallurgical and Materials Transactions A is a copyright of Springer, 2017.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-8c73fec0f2022d0a8fc678a44d4170b26264f290d52de3df9e6410c8e23f4f743</citedby><cites>FETCH-LOGICAL-c349t-8c73fec0f2022d0a8fc678a44d4170b26264f290d52de3df9e6410c8e23f4f743</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11661-016-3920-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11661-016-3920-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Zhang, Yinhui</creatorcontrib><creatorcontrib>Li, Mei</creatorcontrib><creatorcontrib>Godlewski, Larry A.</creatorcontrib><creatorcontrib>Zindel, Jacob W.</creatorcontrib><creatorcontrib>Feng, Qiang</creatorcontrib><title>Effects of N/C Ratio on Solidification Behaviors of Novel Nb-Bearing Austenitic Heat-Resistant Cast Steels for Exhaust Components of Gasoline Engines</title><title>Metallurgical and materials transactions. A, Physical metallurgy and materials science</title><addtitle>Metall Mater Trans A</addtitle><description>In order to comply with more stringent environmental and fuel consumption regulations, novel Nb-bearing austenitic heat-resistant cast steels that withstand exhaust temperatures as high as 1,323 K (1,050 °C) is urgently demanded from automotive industries. In the current research, the solidification behavior of these alloys with variations of N/C ratio is investigated. Directional solidification methods were carried out to examine the microstructural development in mushy zones. Computational thermodynamic calculations under partial equilibrium conditions were performed to predict the solidification sequence of different phases. Microstructural characterization of the mushy zones indicates that N/C ratio significantly influenced the stability of
γ
-austenite and the precipitation temperature of NbC/Nb(C,N), thereby altering the solidification path, as well as the morphology and distribution of NbC/Nb(C,N) and
γ
-ferrite. The solidification sequence of different phases predicted by thermodynamic software agreed well with the experimental results, except the specific precipitation temperatures. The generated data and fundamental understanding will be helpful for the application of computational thermodynamic methods to predict the as-cast microstructure of Nb-bearing austenitic heat-resistant steels.</description><subject>Austenitic stainless steel</subject><subject>Austenitic stainless steels</subject><subject>Automotive components</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Component parts</subject><subject>Heat resistance</subject><subject>Heat resistant steels</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Metallurgy</subject><subject>Microstructure</subject><subject>Mushy zones</subject><subject>Nanotechnology</subject><subject>Precipitation (chemistry)</subject><subject>Solidification</subject><subject>Structural Materials</subject><subject>Surfaces and Interfaces</subject><subject>Thermodynamics</subject><subject>Thin Films</subject><issn>1073-5623</issn><issn>1543-1940</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kc9u1DAQxiMEEqXwANwsceFiOv4TJzm20dIiVUVq4Wy5ybh1lbUXj7daHoT3xatwQEicZjT6fTOf5mua9wI-CYDujIQwRnAQhqtBAj-8aE5EqxUXg4aXtYdO8dZI9bp5Q_QEAGJQ5qT5tfEep0IseXZzNrJbV0JiKbK7tIQ5-DAdB5Fd4KN7DimvYHrGhd3c8wt0OcQHdr6ngjGUMLErdIXfIgUqLhY2OirsriAuxHzKbHN4dBVmY9ruUsS4Xr50VM9FZJv4UAu9bV55txC--1NPm--fN9_GK3799fLLeH7NJ6WHwvupU9U9eAlSzuB6P5mud1rPWnRwL4002ssB5lbOqGY_oNECph6l8tp3Wp02H9e9u5x-7JGK3QaacFlcxLQnK_peC6V111b0wz_oU9rnWN1VyrSyHUB3lRIrNeVElNHbXQ5bl39aAfYYlF2DsjUoewzKHqpGrhraHZ-J-a_N_xX9Bn2Flt0</recordid><startdate>20170301</startdate><enddate>20170301</enddate><creator>Zhang, Yinhui</creator><creator>Li, Mei</creator><creator>Godlewski, Larry A.</creator><creator>Zindel, Jacob W.</creator><creator>Feng, Qiang</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>4T-</scope><scope>4U-</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>20170301</creationdate><title>Effects of N/C Ratio on Solidification Behaviors of Novel Nb-Bearing Austenitic Heat-Resistant Cast Steels for Exhaust Components of Gasoline Engines</title><author>Zhang, Yinhui ; Li, Mei ; Godlewski, Larry A. ; Zindel, Jacob W. ; Feng, Qiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-8c73fec0f2022d0a8fc678a44d4170b26264f290d52de3df9e6410c8e23f4f743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Austenitic stainless steel</topic><topic>Austenitic stainless steels</topic><topic>Automotive components</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Component parts</topic><topic>Heat resistance</topic><topic>Heat resistant steels</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Metallurgy</topic><topic>Microstructure</topic><topic>Mushy zones</topic><topic>Nanotechnology</topic><topic>Precipitation (chemistry)</topic><topic>Solidification</topic><topic>Structural Materials</topic><topic>Surfaces and Interfaces</topic><topic>Thermodynamics</topic><topic>Thin Films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Yinhui</creatorcontrib><creatorcontrib>Li, Mei</creatorcontrib><creatorcontrib>Godlewski, Larry A.</creatorcontrib><creatorcontrib>Zindel, Jacob W.</creatorcontrib><creatorcontrib>Feng, Qiang</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>University Readers</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>https://resources.nclive.org/materials</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Research Library</collection><collection>ProQuest Science Journals</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Materials science collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering collection</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><jtitle>Metallurgical and materials transactions. A, Physical metallurgy and materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Yinhui</au><au>Li, Mei</au><au>Godlewski, Larry A.</au><au>Zindel, Jacob W.</au><au>Feng, Qiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of N/C Ratio on Solidification Behaviors of Novel Nb-Bearing Austenitic Heat-Resistant Cast Steels for Exhaust Components of Gasoline Engines</atitle><jtitle>Metallurgical and materials transactions. A, Physical metallurgy and materials science</jtitle><stitle>Metall Mater Trans A</stitle><date>2017-03-01</date><risdate>2017</risdate><volume>48</volume><issue>3</issue><spage>1151</spage><epage>1162</epage><pages>1151-1162</pages><issn>1073-5623</issn><eissn>1543-1940</eissn><coden>MMTAEB</coden><abstract>In order to comply with more stringent environmental and fuel consumption regulations, novel Nb-bearing austenitic heat-resistant cast steels that withstand exhaust temperatures as high as 1,323 K (1,050 °C) is urgently demanded from automotive industries. In the current research, the solidification behavior of these alloys with variations of N/C ratio is investigated. Directional solidification methods were carried out to examine the microstructural development in mushy zones. Computational thermodynamic calculations under partial equilibrium conditions were performed to predict the solidification sequence of different phases. Microstructural characterization of the mushy zones indicates that N/C ratio significantly influenced the stability of
γ
-austenite and the precipitation temperature of NbC/Nb(C,N), thereby altering the solidification path, as well as the morphology and distribution of NbC/Nb(C,N) and
γ
-ferrite. The solidification sequence of different phases predicted by thermodynamic software agreed well with the experimental results, except the specific precipitation temperatures. The generated data and fundamental understanding will be helpful for the application of computational thermodynamic methods to predict the as-cast microstructure of Nb-bearing austenitic heat-resistant steels.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11661-016-3920-x</doi><tpages>12</tpages></addata></record> |
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| ispartof | Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2017-03, Vol.48 (3), p.1151-1162 |
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| subjects | Austenitic stainless steel Austenitic stainless steels Automotive components Characterization and Evaluation of Materials Chemistry and Materials Science Component parts Heat resistance Heat resistant steels Materials Science Metallic Materials Metallurgy Microstructure Mushy zones Nanotechnology Precipitation (chemistry) Solidification Structural Materials Surfaces and Interfaces Thermodynamics Thin Films |
| title | Effects of N/C Ratio on Solidification Behaviors of Novel Nb-Bearing Austenitic Heat-Resistant Cast Steels for Exhaust Components of Gasoline Engines |
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