Solidification kinetics of a near eutectic Al-Si alloy, unmodified and modified with Sr

被引：15
|
作者：
Aparicio, R. [1 ]
Barrera, G. [2 ]
Trapaga, G. [1 ]
Ramirez-Argaez, M. [3 ]
Gonzalez-Rivera, C. [3 ]
机构：
[1] CINVESTAV Queretaro, Real De Juriquilla 76230, Queretaro Qro, Mexico
[2] UMSNH, Inst Invest Met, Morelia Mich 58000, Mexico
[3] Univ Nacl Autonoma Mexico, Fac Quim, Dept Met Engn, Mexico City 04510, DF, Mexico
来源：
METALS AND MATERIALS INTERNATIONAL | 2013年 / 19卷 / 04期
关键词：
alloys; solidification; grain growth; thermal analysis; Al-Si eutectic; ALUMINUM-SILICON ALLOYS; HEAT-TRANSFER; STRONTIUM; NUCLEATION; GROWTH;
D O I：
10.1007/s12540-013-4010-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The purpose of this work was to explore the differences in solidification kinetics between unmodified and Sr modified eutectic Al-Si alloy as revealed by Fourier Thermal Analysis (FTA) and grain-growth kinetics characterization. Thermal analysis were performed in cylindrical stainless steel cups coated with a thin layer of boron nitride, using two type-K thermocouples connected to a data acquisition system. Grain growth kinetics characterization was carried out using solid fraction evolution and grain density data. FTA results for the non modified and modified alloys suggest that there are changes in the solidification rate during eutectic nucleation followed, during growth, by similar solidification rate evolutions, suggesting that this parameter is governed principally by the heat extraction conditions. On the other hand the change of the grain growth parameters estimated for the experimental probes suggest that the presence of Sr may modify the relationship between grain growth rate and undercooling in eutectic Al-Si.
引用
收藏
页码：707 / 715
页数：9
相关论文
共 50 条
  • [31] Role of Bismuth on Solidification, Microstructure and Mechanical Properties of a Near Eutectic Al-Si Alloys
    Farahany, Saeed
    Ourdjini, Ali
    Abu Bakar, Tuty Asma
    Idris, Mohd Hasbullah
    [J]. METALS AND MATERIALS INTERNATIONAL, 2014, 20 (05) : 929 - 938
  • [32] Physical properties and solidification structure of Al-Si eutectic alloy melt with cerium modification
    Li, PJ
    Guo, JJ
    Jia, J
    Li, QC
    Ri, KS
    [J]. JOURNAL OF RARE EARTHS, 1996, 14 (02) : 140 - 144
  • [33] Role of bismuth on solidification, microstructure and mechanical properties of a near eutectic Al-Si alloys
    Saeed Farahany
    Ali Ourdjini
    Tuty Asma Abu Bakar
    Mohd Hasbullah Idris
    [J]. Metals and Materials International, 2014, 20 : 929 - 938
  • [34] Eutectic Si-phase in Al-Si alloy modified by Na-salt
    [J]. 2000, Chinese Society of Aeronautics and Astronautics (20):
  • [35] Influence of Lanthanum on Solidification, Microstructure, and Mechanical Properties of Eutectic Al-Si Piston Alloy
    R. Ahmad
    M. B. A. Asmael
    [J]. Journal of Materials Engineering and Performance, 2016, 25 : 2799 - 2813
  • [36] Effect of Rubidium on Solidification Parameters, Structure and Operational Characteristics of Eutectic Al-Si Alloy
    Petrov, Igor A.
    Shlyaptseva, Anastasiya D.
    Ryakhovsky, Alexandr P.
    Medvedeva, Elena V.
    Tcherdyntsev, Victor V.
    [J]. METALS, 2023, 13 (08)
  • [37] Impurity Distribution after Solidification of Hypereutectic Al-Si Melts and Eutectic Al-Si Melt
    Li, Yanlei
    Chen, Jian
    Dai, Songyuan
    [J]. HIGH TEMPERATURE MATERIALS AND PROCESSES, 2019, 38 (2019) : 389 - 395
  • [38] The effect of Sr modification on the microstructure and properties of Mg2Si reinforced near- eutectic Al-Si alloy
    Liu, Yongtian
    Lin, Jixing
    Wu, Xvpeng
    Niu, Liyuan
    Li, Guangyu
    [J]. ADVANCED ENGINEERING MATERIALS III, PTS 1-3, 2013, 750-752 : 638 - +
  • [39] CAVITATION BEHAVIOR IN AL-SI EUTECTIC ALLOY
    MAHIDHARA, RK
    MUKHERJEE, AK
    [J]. MATERIALS TRANSACTIONS JIM, 1995, 36 (04): : 570 - 572
  • [40] RAPID PRESSURE SOLIDIFICATION IN AN AL-SI ALLOY
    WU, HC
    CHIN, BA
    [J]. JOURNAL OF MATERIALS SCIENCE, 1991, 26 (04) : 993 - 999
12345