Influence of Annealing on the Microstructures and Oxidation Behaviors of Al8(CoCrFeNi)92, Al15(CoCrFeNi)85, and Al30(CoCrFeNi)70 High-Entropy Alloys

被引：43
作者：
Butler, Todd M. [1 ,2 ]
Weaver, Mark L. [2 ]
机构：
[1] UES Inc, 4401 Dayton Xenia Rd, Dayton, OH 45432 USA
[2] Univ Alabama, Dept Met & Mat Engn, Tuscaloosa, AL 35487 USA
来源：
METALS | 2016年 / 6卷 / 09期
基金：
美国国家科学基金会;
关键词：
high-entropy; oxidation; multi-component alloys; MECHANICAL-PROPERTIES; RESISTANCE;
D O I：
10.3390/met6090222
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The understanding of the oxidation behaviors of as-cast and annealed high-entropy alloys (HEAs) is currently limited. This work systematically investigates the influence of annealing on the microstructures and oxidation behaviors of AlCoCrFeNi-based HEAs. Annealing was found to alter the distribution of Al-rich phases which caused a change in the oxidation mechanisms. In general, all three of the investigated HEAs displayed some degree of transient oxidation at 1050 degrees C that was later followed by protective, parabolic oxide growth. The respective oxidation behaviors are discussed relative to existing oxide formation models for Ni-Cr-Al alloys.
引用
收藏
页数：11
相关论文
共 52 条
  • [1] THERMO-CALC & DICTRA, computational tools for materials science
    Andersson, JO
    Helander, T
    Höglund, LH
    Shi, PF
    Sundman, B
    [J]. CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2002, 26 (02): : 273 - 312
  • [2] [Anonymous], 2015, THERM VERS 2015A, V2015
  • [3] [Anonymous], 2015, THERM NI BAS SUP DAT
  • [4] Birks N., 2006, HIGH TEMPERATURE OXI, V2
  • [5] High-Temperature Oxidation Behavior of Al-Co-Cr-Ni-(Fe or Si) Multicomponent High-Entropy Alloys
    Butler, T. M.
    Alfano, J. P.
    Martens, R. L.
    Weaver, M. L.
    [J]. JOM, 2015, 67 (01) : 246 - 259
  • [6] Butler T.M., 2015, CONTRIBUTED PAPERS M, P1257
  • [7] Oxidation behavior of arc melted AlCoCrFeNi multi-component high-entropy alloys
    Butler, Todd M.
    Weaver, Mark L.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 674 : 229 - 244
  • [8] Structural and Thermodynamic Factors of Suppressed Interdiffusion Kinetics in Multi-component High-entropy Materials
    Chang, Shou-Yi
    Li, Chen-En
    Huang, Yi-Chung
    Hsu, Hsun-Feng
    Yeh, Jien-Wei
    Lin, Su-Jien
    [J]. SCIENTIFIC REPORTS, 2014, 4
  • [9] The evolution of microstructures and high temperature properties of AlxCo1.5CrFeNi1.5Tiy high entropy alloys
    Chang, Yao-Jen
    Yeh, An-Chou
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 653 : 379 - 385
  • [10] Microstructure and properties of age-hardenable AlxCrFe1.5MnNi0.5 alloys
    Chen, Shin-Tsung
    Tang, Wei-Yeh
    Kuo, Yen-Fu
    Chen, Sheng-Yao
    Tsau, Chun-Huei
    Shun, Tao-Tsung
    Yeh, Jien-Wei
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (21-22): : 5818 - 5825
123456