Microstructure evolution of a multi-track AlCoCrFeNi high entropy alloy coating fabricated by laser cladding

被引：30
|
作者：
Guo, Weimin [1 ]
Ding, Ning [1 ]
Liu, Guoqiang [2 ]
Jing, Cainian [3 ]
Xu, Huixia [1 ]
Liu, Long [1 ]
Xu, Na [1 ]
Wu, Xiaofeng [1 ]
He, Jianqun [4 ]
Zairi, Fahmi [5 ]
机构：
[1] Qilu Univ Technol, Shandong Acad Sci, Shandong Anal & Test Ctr, Shandong Engn Technol Ctr Mat Failure Anal & Safe, Jinan 250014, Peoples R China
[2] Qilu Univ Technol, Shandong Acad Sci, Shandong Inst Mech Design & Res, Jinan 250014, Peoples R China
[3] Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Peoples R China
[4] Qilu Univ Technol, Shandong Acad Sci, Laser Res Inst, Jinan 250103, Peoples R China
[5] Lille Univ, Civil Engn & Geoenvironm Lab ULR 4515 LGCgE, F-590000 Lille, France
来源：
MATERIALS CHARACTERIZATION | 2022年 / 184卷
基金：
中国国家自然科学基金;
关键词：
AlCoCrFeNi high entropy alloy; Laser cladding; Heat treatment; Interface; Spinodal decomposition; MECHANICAL-PROPERTIES; COMPRESSIVE PROPERTIES; TEMPERATURE; DEPOSITION; PERFORMANCE; ALUMINUM;
D O I：
10.1016/j.matchar.2021.111660
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to understand the microstructure evolution characteristics of AlCoCrFeNi high entropy alloy (HEA) coating at high environmental temperatures, a laser cladded AlCoCrFeNi HEA coating is heated to 700 degrees C, 900 degrees C and 1100 degrees C respectively, holding for 30 min and cooled in air. Microstructure and micro-hardness of the treated coatings are investigated, in both interface and coating areas. In interface area, FCC blocks exist on the boundary of interface and coating in untreated specimen, besides the BCC single phase in coating. The primary FCC blocks remain in 700 degrees C treated coating, while they disappear in 900 degrees C and 1100 degrees C treated coatings. However, new FCC particles are formed instead near interface. In coating area, BCC single phase is acquired in untreated and 700 degrees C treated coatings. In 900 degrees C and 1100 degrees C treated coatings, lots of FCC and sigma (Cr-rich carbide) particles are distributed mainly on grain boundaries of BCC phase matrix and spinodal decomposition occurs to BCC phase. Micro-hardness of 700 degrees C treated coating is slightly higher than that of untreated coating due to the age hardening effect, while the micro-hardness of 900 degrees C and 1100 degrees C treated coatings are much lower than that in untreated and 700 degrees C treated coatings due to the formation of soft FCC phase. Micro-hardness of 1100 degrees C treated coating is slightly lower than that of 900 degrees C treated coating due to the coarsening of sigma particles and spinodal decomposed structures.
引用
收藏
页数：11
相关论文
共 50 条
  • [41] Dynamic evolution behavior of cracks for single-track and multi-track clads in laser cladding
    Yanhua Bian
    Binxin Dong
    Bo Chen
    Jianhao Guo
    Shaoxia Li
    Chongxin Tian
    Shouwen Xu
    Xiuli He
    Gang Yu
    The International Journal of Advanced Manufacturing Technology, 2024, 130 : 2313 - 2328
  • [42] Temperature and stress fields of multi-track laser cladding
    Zhao Hong-yun
    Zhang Hong-tao
    Xu Chun-hua
    Yang Xian-qun
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2009, 19 : S495 - S501
  • [43] Microstructure characterization and high-temperature wear mechanism of high-entropy alloy matrix composite coating fabricated by laser cladding
    Wu, Tao
    Yang, Chen
    Yu, Litao
    Zheng, Xiaofeng
    Zhang, Lingfeng
    Jiang, Yitong
    Xue, Yanpeng
    Lu, Yonghao
    Luan, Benli
    APPLIED SURFACE SCIENCE, 2024, 677
  • [44] Dynamic evolution behavior of cracks for single-track and multi-track clads in laser cladding
    Bian, Yanhua
    Dong, Binxin
    Chen, Bo
    Guo, Jianhao
    Li, Shaoxia
    Tian, Chongxin
    Xu, Shouwen
    He, Xiuli
    Yu, Gang
    INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2024, 130 (3-4): : 1901 - 1924
  • [45] Temperature and stress fields of multi-track laser cladding
    赵洪运
    张洪涛
    徐春华
    杨贤群
    Transactions of Nonferrous Metals Society of China, 2009, 19(S2) (S2) : 495 - 501
  • [46] Numerical Simulation of Multi-track Laser Cladding Process
    Kang, Jinwu
    Huang, Tianyou
    Zhang, Anfeng
    Li, Dichen
    NEW MATERIALS, APPLICATIONS AND PROCESSES, PTS 1-3, 2012, 399-401 : 1802 - +
  • [47] Microstructure and Properties of FeCoNiCr0.5Al0.2 High Entropy Alloy Coating with Different Layers Fabricated by Laser Cladding
    Zhang, Guojian
    Cheng, Xiyun
    Ji, Xiulin
    Lu, Yixun
    Chen, Junwei
    Li, Cilin
    Hu, Yangdong
    Surface Technology, 2024, 53 (21): : 187 - 197
  • [48] Microstructure of NbMoTaTiNi Refractory High-Entropy Alloy Coating Fabricated by Ultrasonic Field-Assisted Laser Cladding Process
    Zhao, Song
    Taheri, Morteza
    Shirvani, Kourosh
    Naserlouei, Mehdi
    Beirami, Khashayar
    Paidar, Moslem
    Sai, Wei
    COATINGS, 2023, 13 (06)
  • [49] Investigation on the columnar-to-equiaxed transition and corrosion behavior in multi-track Stellite-6 coating fabricated by laser cladding
    Cui, Che
    Wu, Meiping
    He, Rui
    Gong, Yuling
    Miao, Xiaojin
    MATERIALS CHEMISTRY AND PHYSICS, 2022, 291
  • [50] Microstructure and Properties of CoCrFeMnNiMoxHigh-Entropy Alloy Coating by Laser Cladding
    Liu H.
    Sun S.
    Li X.
    Hao J.
    Yang H.
    Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University, 2022, 56 (12): : 1675 - 1687
12345