Calculation of electric field effects on the Gibbs free energy of the Al-Li-Mg alloy

被引：0
|
作者：
ZHANG Jianjun
机构：
来源：
Rare Metals | 2007年 / 05期
基金：
中国国家自然科学基金;
关键词：
Al-Li-Mg alloy; thermodynamics parameters; Thomas-Fermi model; electric field;
D O I：
暂无
中图分类号：
TG146.21 [];
学科分类号：
摘要：
Based on the Thomas-Fermi model,the calculation methods of the monatomic Gibbs free energy were found. The interior potential boundary condition under electric field was defined. The calculation methods of Gibbs free energy for the monatomic,compound,and solid solution with electric field were set up. Under the influence of electric field,the Gibbs free energy of Al is the most sensitive,followed by those of Li and Mg. At the solution temperature the Gibbs free energies of Al3Li and its elements under electric field are not symmetrical about the zero point of electric field,whereas at the aging temperature their values are symmetrical about the zero point of electric field. At the solution temperature near the zero point of electric field,the Gibbs free energy of Al3Li is higher than that of Al-2.14%Li. And at 460 K the Gibbs free energy of Al3Li is lower than that of Al-2.14wt.%Li under electric field. The Gibbs free energy of 1420 alloy decreases from both sides of electric field to the zero point at the aging temperature.
引用
收藏
页码：508 / 514
页数：7
相关论文
共 50 条
  • [31] TEXTURE OF PRESSED RODS OF AN 1420-ALLOY OF THE AL-LI-MG SYSTEM AND ANISOTROPY IN THEIR MECHANICAL-PROPERTIES
    FRIDLYANDER, IN
    SHAMRAI, VF
    BABAREKO, AA
    SETYUKOV, OA
    EGIZ, IV
    RUCHEVA, NV
    RUSSIAN METALLURGY, 1994, (04): : 88 - 93
  • [32] High strain rate superplasticity in an Al-Li-Mg alloy subjected to equal-channel angular extrusion
    Musin, F
    Kaibyshev, R
    Motohashi, Y
    Sakuma, T
    Itoh, G
    MATERIALS TRANSACTIONS, 2002, 43 (10) : 2370 - 2377
  • [33] Phase transformation during long-term low temperature exposure of 1424 Al-Li-Mg alloy
    Khokhlatova, LB
    Ber, LB
    Alekseev, AA
    Kolobnev, NI
    Ukolova, OG
    Lukina, EA
    ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3, 2002, 396-4 : 1395 - 1398
  • [34] Density and molar volume of Al-rich Al-Li-Mg solid alloys
    Gasior, W
    Moser, Z
    Pstrus, J
    ARCHIVES OF METALLURGY, 2003, 48 (04): : 497 - 505
  • [35] Crystal analysis of nonequilibrium δnon-phase in Al-Li-Mg alloys
    Alekseev, A. A.
    Lukina, E. A.
    Zaytsev, D. V.
    Fridlyander, I. N.
    ALUMINIUM ALLOYS 2006, PTS 1 AND 2: RESEARCH THROUGH INNOVATION AND TECHNOLOGY, 2006, 519-521 : 259 - 263
  • [36] A SAXS STUDY OF COARSENING MECHANISM OF GP ZONES IN THE AL-LI-MG SYSTEM
    COCCO, G
    SCHIFFINI, L
    ENZO, S
    BENEDETTI, A
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1982, 69 (01): : 343 - 348
  • [37] Research of super lattice structure parameters in alloys of Al-Li-Mg system
    Setuykov, O. A.
    Fridliander, I. N.
    Shamray, V. F.
    ALUMINIUM ALLOYS 2006, PTS 1 AND 2: RESEARCH THROUGH INNOVATION AND TECHNOLOGY, 2006, 519-521 : 1907 - 1911
  • [38] Al-Li-Mg(Ti)合金形成焓的EAM研究
    侯育花
    唐美
    徐海龙
    方杰
    王建川
    欧阳义芳
    金属学报, 2008, (02) : 134 - 138
  • [39] Influence of ultrafine ceramic reinforcement on the microstructure and properties of Al-Li-Mg alloys
    Shakesheff, A.J.
    Bushby, R.
    Gerique, T.
    Lazzeri, L.
    De Sanctis, M.
    Materials Science Forum, 2000, 331
  • [40] THE AGING CHARACTERISTICS OF RAPIDLY SOLIDIFIED HIGH LITHIUM AL-LI-MG ALLOYS
    WILKES, DMJ
    LI, Y
    JONES, H
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 179 (pt 1): : 681 - 687
12345