Mass-spectrometric determination of the thermodynamic mixing behavior of liquid ternary Fe–Ni–Cr alloys
Thermodynamic investigations on liquid ternary Fe–Ni–Cr alloys have been performed by means of the computer-aided Knudsen cell mass spectrometry. Ternary thermodynamically adapted power (TAP) series are used for the algebraic representation of the thermodynamic excess properties. At 1950 K, the mola...
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description | Thermodynamic investigations on liquid ternary Fe–Ni–Cr alloys have been performed by means of the computer-aided Knudsen cell mass spectrometry. Ternary thermodynamically adapted power (TAP) series are used for the algebraic representation of the thermodynamic excess properties. At 1950
K, the molar excess Gibbs energy
G
E is negative in the predominant part of Gibbs triangle (minimum value: −2980
J/mol at
x
Ni=0.55,
x
Cr=0.45), and positive only near the liquid binary Cr–Fe alloys (maximum value: 940
J/mol at
x
Cr=0.375,
x
Fe=0.625). The molar heat of mixing
H
E is exothermic for nearly all Fe–Ni–Cr melts (minimum value: −4770
J/mol at
x
Fe=0.38,
x
Ni=0.62). Only the Cr-richest ternary melts near the Ni–Cr binary alloys are slight endothermic (maximum value: 80
J/mol at
x
Ni=0.125,
x
Cr=0.87). The molar excess entropy
S
E is slight negative for ternary Fe–Ni–Cr melts near the two binary boundary systems Fe–Ni and Cr–Fe with a minimum
S
E value of −1.27
J/mol
K at
x
Cr=0.40 and
x
Fe=0.60, and slight positive at the side of binary Ni–Cr melts (maximum
S
E value: 1.35
J/mol
K at
x
Ni=0.50,
x
Cr=0.50).
The Fe-activities of liquid ternary Fe–Ni–Cr alloys as determined, in this work, show slight negative deviations from the ideal behavior in the range of composition below the section of constant mole fraction
x
Cr/
x
Ni=1, and slight positive deviations from Raoult's law above this section line. The Ni-activities of all ternary Fe–Ni–Cr melts show negative deviation from the ideal behavior. The Cr-activities show slight positive deviations from Raoult's law in the range of composition on the left-hand side of the section of constant mole fraction
x
Ni/
x
Fe=1, and slight negative deviations from the ideal behavior on the right-hand side of this section line. The results of this work can be used successfully for phase-diagram calculations. |
doi_str_mv | 10.1016/S0040-6031(98)00417-1 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_26647491</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0040603198004171</els_id><sourcerecordid>26647491</sourcerecordid><originalsourceid>FETCH-LOGICAL-c367t-8f0ebc114037e6a850520830fdf7d7387efffe1ef8ce0b5927332a2a08fd1b973</originalsourceid><addsrcrecordid>eNqFkM9O3DAQh60KpC7QR6iUQ4XgEBjbSeycEFrxT4L2AEi9WV5nXFySeNfOou6t79A35Enq7K72ysG2Rvp-npmPkK8UzijQ6vwRoIC8Ak5PanmaCipy-olMqBQsFxX7uUcmO-QzOYjxNwBQJmFCXh90jHmcoxmC73AIzmQNDhg61-vB-T7zNhtecDyh882q111COvfH9b-yGb7oN-fDCLVusXRNlqK9DqvsGt___vvu0jUNmW5bv4pHZN_qNuKX7XtInq-vnqa3-f2Pm7vp5X1ueCWGXFrAmaG0AC6w0rKEkoHkYBsrGsGlQGstUrTSIMzKmgnOmWYapG3orBb8kBxv_p0Hv1hiHFTnosG21T36ZVSsqgpR1DSB5QY0wccY0Kp5cF2aXlFQo1q1VqtGb6qWaq1Wjblv2wY6Gt3aoHvj4i7MCg5lIRN2scEwLfvmMKhoHPYGGxeSb9V490Gj_3wjkRM</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>26647491</pqid></control><display><type>article</type><title>Mass-spectrometric determination of the thermodynamic mixing behavior of liquid ternary Fe–Ni–Cr alloys</title><source>Elsevier ScienceDirect Journals Complete</source><creator>Vrestal, J ; Theiner, J ; Broz, P ; Tomiska, J</creator><creatorcontrib>Vrestal, J ; Theiner, J ; Broz, P ; Tomiska, J</creatorcontrib><description>Thermodynamic investigations on liquid ternary Fe–Ni–Cr alloys have been performed by means of the computer-aided Knudsen cell mass spectrometry. Ternary thermodynamically adapted power (TAP) series are used for the algebraic representation of the thermodynamic excess properties. At 1950
K, the molar excess Gibbs energy
G
E is negative in the predominant part of Gibbs triangle (minimum value: −2980
J/mol at
x
Ni=0.55,
x
Cr=0.45), and positive only near the liquid binary Cr–Fe alloys (maximum value: 940
J/mol at
x
Cr=0.375,
x
Fe=0.625). The molar heat of mixing
H
E is exothermic for nearly all Fe–Ni–Cr melts (minimum value: −4770
J/mol at
x
Fe=0.38,
x
Ni=0.62). Only the Cr-richest ternary melts near the Ni–Cr binary alloys are slight endothermic (maximum value: 80
J/mol at
x
Ni=0.125,
x
Cr=0.87). The molar excess entropy
S
E is slight negative for ternary Fe–Ni–Cr melts near the two binary boundary systems Fe–Ni and Cr–Fe with a minimum
S
E value of −1.27
J/mol
K at
x
Cr=0.40 and
x
Fe=0.60, and slight positive at the side of binary Ni–Cr melts (maximum
S
E value: 1.35
J/mol
K at
x
Ni=0.50,
x
Cr=0.50).
The Fe-activities of liquid ternary Fe–Ni–Cr alloys as determined, in this work, show slight negative deviations from the ideal behavior in the range of composition below the section of constant mole fraction
x
Cr/
x
Ni=1, and slight positive deviations from Raoult's law above this section line. The Ni-activities of all ternary Fe–Ni–Cr melts show negative deviation from the ideal behavior. The Cr-activities show slight positive deviations from Raoult's law in the range of composition on the left-hand side of the section of constant mole fraction
x
Ni/
x
Fe=1, and slight negative deviations from the ideal behavior on the right-hand side of this section line. The results of this work can be used successfully for phase-diagram calculations.</description><identifier>ISSN: 0040-6031</identifier><identifier>EISSN: 1872-762X</identifier><identifier>DOI: 10.1016/S0040-6031(98)00417-1</identifier><identifier>CODEN: THACAS</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Activity ; Chemical thermodynamics ; Chemistry ; Exact sciences and technology ; General and physical chemistry ; Mass spectrometry ; Metals ; Metals and alloys ; Ternary alloys ; Thermodynamic properties ; Thermodynamics</subject><ispartof>Thermochimica acta, 1998-10, Vol.319 (1), p.193-200</ispartof><rights>1998 Elsevier Science B.V.</rights><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c367t-8f0ebc114037e6a850520830fdf7d7387efffe1ef8ce0b5927332a2a08fd1b973</citedby><cites>FETCH-LOGICAL-c367t-8f0ebc114037e6a850520830fdf7d7387efffe1ef8ce0b5927332a2a08fd1b973</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0040-6031(98)00417-1$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2430548$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Vrestal, J</creatorcontrib><creatorcontrib>Theiner, J</creatorcontrib><creatorcontrib>Broz, P</creatorcontrib><creatorcontrib>Tomiska, J</creatorcontrib><title>Mass-spectrometric determination of the thermodynamic mixing behavior of liquid ternary Fe–Ni–Cr alloys</title><title>Thermochimica acta</title><description>Thermodynamic investigations on liquid ternary Fe–Ni–Cr alloys have been performed by means of the computer-aided Knudsen cell mass spectrometry. Ternary thermodynamically adapted power (TAP) series are used for the algebraic representation of the thermodynamic excess properties. At 1950
K, the molar excess Gibbs energy
G
E is negative in the predominant part of Gibbs triangle (minimum value: −2980
J/mol at
x
Ni=0.55,
x
Cr=0.45), and positive only near the liquid binary Cr–Fe alloys (maximum value: 940
J/mol at
x
Cr=0.375,
x
Fe=0.625). The molar heat of mixing
H
E is exothermic for nearly all Fe–Ni–Cr melts (minimum value: −4770
J/mol at
x
Fe=0.38,
x
Ni=0.62). Only the Cr-richest ternary melts near the Ni–Cr binary alloys are slight endothermic (maximum value: 80
J/mol at
x
Ni=0.125,
x
Cr=0.87). The molar excess entropy
S
E is slight negative for ternary Fe–Ni–Cr melts near the two binary boundary systems Fe–Ni and Cr–Fe with a minimum
S
E value of −1.27
J/mol
K at
x
Cr=0.40 and
x
Fe=0.60, and slight positive at the side of binary Ni–Cr melts (maximum
S
E value: 1.35
J/mol
K at
x
Ni=0.50,
x
Cr=0.50).
The Fe-activities of liquid ternary Fe–Ni–Cr alloys as determined, in this work, show slight negative deviations from the ideal behavior in the range of composition below the section of constant mole fraction
x
Cr/
x
Ni=1, and slight positive deviations from Raoult's law above this section line. The Ni-activities of all ternary Fe–Ni–Cr melts show negative deviation from the ideal behavior. The Cr-activities show slight positive deviations from Raoult's law in the range of composition on the left-hand side of the section of constant mole fraction
x
Ni/
x
Fe=1, and slight negative deviations from the ideal behavior on the right-hand side of this section line. The results of this work can be used successfully for phase-diagram calculations.</description><subject>Activity</subject><subject>Chemical thermodynamics</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Mass spectrometry</subject><subject>Metals</subject><subject>Metals and alloys</subject><subject>Ternary alloys</subject><subject>Thermodynamic properties</subject><subject>Thermodynamics</subject><issn>0040-6031</issn><issn>1872-762X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNqFkM9O3DAQh60KpC7QR6iUQ4XgEBjbSeycEFrxT4L2AEi9WV5nXFySeNfOou6t79A35Enq7K72ysG2Rvp-npmPkK8UzijQ6vwRoIC8Ak5PanmaCipy-olMqBQsFxX7uUcmO-QzOYjxNwBQJmFCXh90jHmcoxmC73AIzmQNDhg61-vB-T7zNhtecDyh882q111COvfH9b-yGb7oN-fDCLVusXRNlqK9DqvsGt___vvu0jUNmW5bv4pHZN_qNuKX7XtInq-vnqa3-f2Pm7vp5X1ueCWGXFrAmaG0AC6w0rKEkoHkYBsrGsGlQGstUrTSIMzKmgnOmWYapG3orBb8kBxv_p0Hv1hiHFTnosG21T36ZVSsqgpR1DSB5QY0wccY0Kp5cF2aXlFQo1q1VqtGb6qWaq1Wjblv2wY6Gt3aoHvj4i7MCg5lIRN2scEwLfvmMKhoHPYGGxeSb9V490Gj_3wjkRM</recordid><startdate>19981005</startdate><enddate>19981005</enddate><creator>Vrestal, J</creator><creator>Theiner, J</creator><creator>Broz, P</creator><creator>Tomiska, J</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19981005</creationdate><title>Mass-spectrometric determination of the thermodynamic mixing behavior of liquid ternary Fe–Ni–Cr alloys</title><author>Vrestal, J ; Theiner, J ; Broz, P ; Tomiska, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-8f0ebc114037e6a850520830fdf7d7387efffe1ef8ce0b5927332a2a08fd1b973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Activity</topic><topic>Chemical thermodynamics</topic><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Mass spectrometry</topic><topic>Metals</topic><topic>Metals and alloys</topic><topic>Ternary alloys</topic><topic>Thermodynamic properties</topic><topic>Thermodynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vrestal, J</creatorcontrib><creatorcontrib>Theiner, J</creatorcontrib><creatorcontrib>Broz, P</creatorcontrib><creatorcontrib>Tomiska, J</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Thermochimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vrestal, J</au><au>Theiner, J</au><au>Broz, P</au><au>Tomiska, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mass-spectrometric determination of the thermodynamic mixing behavior of liquid ternary Fe–Ni–Cr alloys</atitle><jtitle>Thermochimica acta</jtitle><date>1998-10-05</date><risdate>1998</risdate><volume>319</volume><issue>1</issue><spage>193</spage><epage>200</epage><pages>193-200</pages><issn>0040-6031</issn><eissn>1872-762X</eissn><coden>THACAS</coden><abstract>Thermodynamic investigations on liquid ternary Fe–Ni–Cr alloys have been performed by means of the computer-aided Knudsen cell mass spectrometry. Ternary thermodynamically adapted power (TAP) series are used for the algebraic representation of the thermodynamic excess properties. At 1950
K, the molar excess Gibbs energy
G
E is negative in the predominant part of Gibbs triangle (minimum value: −2980
J/mol at
x
Ni=0.55,
x
Cr=0.45), and positive only near the liquid binary Cr–Fe alloys (maximum value: 940
J/mol at
x
Cr=0.375,
x
Fe=0.625). The molar heat of mixing
H
E is exothermic for nearly all Fe–Ni–Cr melts (minimum value: −4770
J/mol at
x
Fe=0.38,
x
Ni=0.62). Only the Cr-richest ternary melts near the Ni–Cr binary alloys are slight endothermic (maximum value: 80
J/mol at
x
Ni=0.125,
x
Cr=0.87). The molar excess entropy
S
E is slight negative for ternary Fe–Ni–Cr melts near the two binary boundary systems Fe–Ni and Cr–Fe with a minimum
S
E value of −1.27
J/mol
K at
x
Cr=0.40 and
x
Fe=0.60, and slight positive at the side of binary Ni–Cr melts (maximum
S
E value: 1.35
J/mol
K at
x
Ni=0.50,
x
Cr=0.50).
The Fe-activities of liquid ternary Fe–Ni–Cr alloys as determined, in this work, show slight negative deviations from the ideal behavior in the range of composition below the section of constant mole fraction
x
Cr/
x
Ni=1, and slight positive deviations from Raoult's law above this section line. The Ni-activities of all ternary Fe–Ni–Cr melts show negative deviation from the ideal behavior. The Cr-activities show slight positive deviations from Raoult's law in the range of composition on the left-hand side of the section of constant mole fraction
x
Ni/
x
Fe=1, and slight negative deviations from the ideal behavior on the right-hand side of this section line. The results of this work can be used successfully for phase-diagram calculations.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/S0040-6031(98)00417-1</doi><tpages>8</tpages></addata></record> |
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source | Elsevier ScienceDirect Journals Complete |
subjects | Activity Chemical thermodynamics Chemistry Exact sciences and technology General and physical chemistry Mass spectrometry Metals Metals and alloys Ternary alloys Thermodynamic properties Thermodynamics |
title | Mass-spectrometric determination of the thermodynamic mixing behavior of liquid ternary Fe–Ni–Cr alloys |
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