Microstructure and wear behavior of AlxCo1.5CrFeNi1.5Tiy high-entropy alloys

被引：1247
作者：
Chuang, Ming-Hao [1 ]
Tsai, Ming-Hung [2 ]
Wang, Woei-Ren [3 ]
Lin, Su-Jien [1 ]
Yeh, Jien-Wei [1 ]
机构：
[1] Natl TsingHua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
[3] Ind Technol Res Inst, Tainan 709, Taiwan
来源：
ACTA MATERIALIA | 2011年 / 59卷 / 16期
关键词：
High-entropy alloys; Wear mechanism; Microstructure; Hardness; Oxidation; NI-BASE SUPERALLOYS; COMPRESSIVE PROPERTIES; PHASE PRECIPITATION; DELAMINATION THEORY; OXIDATIONAL WEAR; ETA-PHASE; RESISTANCE; MECHANISM; CO; SIMULATION;
D O I：
10.1016/j.actamat.2011.06.041
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of AL(x)Co(1.5)CrFeNi(1.5)Ti(y) high-entropy alloys with different Al and Ti contents were designed, and their phase and microstructure were investigated. The adhesive wear behavior and mechanism were also studied and compared with the conventional wear-resistant steels SUJ2 and SKH51. The amounts of Al and Ti strongly affect the phase and microstructure, particularly the amount and morphology of the hard eta-(Ni, Co)(3)Ti phase. It was found that the wear resistance of the Co1.5CrFeNi1.5Ti and Al0.2Co1.5CrFeNi1.5Ti alloys is at least two times better than that of conventional wear-resistant steels with similar hardness. The excellent anti-oxidation property and resistance to thermal softening in these high-entropy alloys are proposed to be the main reasons for the outstanding wear resistance. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6308 / 6317
页数：10
相关论文
共 47 条
  • [1] Age-hardening behavior and phase identification in solution-treated AEREX 350 superalloy
    Asgari, S.
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (07): : 2051 - 2057
  • [2] TEMPERATURE MAPS FOR FRICTIONAL HEATING IN DRY SLIDING
    ASHBY, MF
    ABULAWI, J
    KONG, HS
    [J]. TRIBOLOGY TRANSACTIONS, 1991, 34 (04): : 577 - 587
  • [3] Microstructure and properties of Al0.5CoCrCuFeNiTix (x=0-2.0) high-entropy alloys
    Chen, Min-Rui
    Lin, Su-Jien
    Yeh, Jien-Wei
    Chen, Swe-Kai
    Huang, Yuan-Sheng
    Tu, Chin-Pang
    [J]. MATERIALS TRANSACTIONS, 2006, 47 (05) : 1395 - 1401
  • [4] Effect of vanadium addition on the microstructure, hardness, and wear resistance of Al0.5CoCrCuFeNi high-entropy alloy
    Chen, Min-Rui
    Lin, Su-Jien
    Yeh, Jien-We |
    Chen, Swe-Kai
    Huang, Yuan-Sheng
    Chuang, Ming-Hao
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (05): : 1363 - 1369
  • [5] 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
  • [6] The evolution of η phase in Ni-Co base superalloys
    Cui, C. Y.
    Gu, Y. F.
    Ping, D. H.
    Harada, H.
    Fukuda, T.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 485 (1-2): : 651 - 656
  • [7] Phase stability and yield stress of Ni-base superalloys containing high Co and Ti
    Cui, C. Y.
    Gu, Y. F.
    Harada, H.
    Ping, D. H.
    Sato, A.
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (11): : 3183 - 3190
  • [8] Cui CY, 2005, METALL MATER TRANS A, V36A, P2921
  • [9] Davis JR, 2000, ASM SPECIALTY HDB, P68
  • [10] Cellular automata simulation of the ordering process in Ni-Al-Ti (Cr, Co) ternary alloys
    He, Yizhu
    Liu, Hongyan
    Shin, Keesam
    Lee, Chan Gyu
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 463 (1-2) : 546 - 551
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