Nucleation and phase selection in undercooled Fe-Cr-Ni melts .1. Theoretical analysis of nucleation behavior

被引：57
|
作者：
Volkmann, T [1 ]
Loser, W [1 ]
Herlach, DM [1 ]
机构：
[1] INST MET MAT,IFW,INST SOLID STATE & MAT RES,D-01171 DRESDEN,GERMANY
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1997年 / 28卷 / 02期
关键词：
D O I：
10.1007/s11661-997-0146-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The selection of the primary solidifying phase in undercooled stainless steel melts is theoretically analyzed in terms of nucleation theory. Nucleation phenomena are considered using different models for the solid-liquid interface energy. The classical nucleation theory for sharp interfaces and an improved modification, the diffuse interface theory, are applied.:The influence of deviations of the nucleus composition from the overall: alloy composition is also revealed. A preferred nucleation of the metastable bcc phase in fee equilibrium solidification-type alloys is predicted. The critical undercooling of metastable crystallization as a function of alloy composition is calculated for an isoplethal section at 69 at. pct Fe of Fe69Cr31-xNix alloys. The results are summarized in a phase selection diagram predicting the primary solidification mode as a function of undercooling and melt composition.
引用
收藏
页码：453 / 460
页数：8
相关论文
共 50 条
  • [1] Nucleation and phase selection in undercooled Fe-Cr-Ni melts: Part I. Theoretical analysis of nucleation behavior
    German Aerospace Research, Establishment, Koeln, Germany
    Metall Mat Trans A Phys Metall Mat Sci, 2 (453-460):
  • [2] Nucleation and phase selection in undercooled Fe-Cr-Ni melts: Part I. Theoretical analysis of nucleation behavior
    T. Volkmann
    D. M. Herlach
    W. Löser
    Metallurgical and Materials Transactions A, 1997, 28 : 453 - 460
  • [3] NUCLEATION AND METASTABLE PHASE-FORMATION IN UNDERCOOLED FE-CR-NI MELTS
    LOSER, W
    VOLKMANN, T
    HERLACH, DM
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 178 (1-2): : 163 - 166
  • [4] Nucleation and phase selection in undercooled Fe-Cr-Ni melts .2. Containerless solidification experiments
    Volkmann, T
    Loser, W
    Herlach, DM
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1997, 28 (02): : 461 - 469
  • [5] Nucleation and phase selection in undercooled Fe-Cr-Ni melts: Part II. Containerless solidification experiments
    T. Volkmann
    D. M. Herlach
    W. Löser
    Metallurgical and Materials Transactions A, 1997, 28 : 461 - 469
  • [6] THEORETICAL TREATMENT OF THE SOLIDIFICATION OF UNDERCOOLED FE-CR-NI MELTS
    LOSER, W
    HERLACH, DM
    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (05): : 1585 - 1591
  • [7] Nucleation and phase-selection in undercooled melts
    Herlach, DM
    Gao, J
    Holland-Moritz, D
    Volkmann, T
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 375 : 9 - 15
  • [8] SOLIDIFICATION OF UNDERCOOLED FE-CR-NI ALLOYS .1. THERMAL-BEHAVIOR
    KOSEKI, T
    FLEMINGS, MC
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (11): : 2991 - 2999
  • [9] Phase selection and rapid solidification of undercooled Fe-Cr-Ni steel alloys in microgravity
    Matson, DM
    Löser, W
    Flemings, MC
    SOLIDIFICATION 1999, 1999, : 99 - 106
  • [10] Sigma-phase equilibria and nucleation in Fe-Cr-Ni alloys at high temperature
    Sopousek, J
    Kruml, T
    SCRIPTA MATERIALIA, 1996, 35 (06) : 689 - 693
12345