Carbide precipitation in a Ni-based superalloy fabricated by DED and cast after long-term thermal exposure

被引：0
|
作者：
Zhang, Xue [1 ,2 ]
Liang, Jingjing [2 ]
Zhao, Yusong [1 ,3 ]
Mu, Yahang [1 ,2 ]
Zhang, Huan [2 ,3 ]
Li, Jinguo [2 ]
机构：
[1] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
[3] Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China
来源：
MATERIALS LETTERS | 2025年 / 384卷
关键词：
Carbides; Microstructure stability; Ni-based superalloy; DED;
D O I：
10.1016/j.matlet.2025.138061
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present work investigates the effect of carbide precipitation on microstructure stability in a Ni-based superalloy fabricated by directed energy deposition (DED) and cast. Long-term thermal exposure was employed for evaluating the microstructure stability. The results show that needle-like M6C carbides with the size of more than 15 mu m and rod-like MC carbides with the size of about 2 mu m are precipitated in cast, and DED Ni-based superalloy, respectively. These carbides are rich W, Mo, and Re. The microstructure stability of DED Ni-based superalloys is better due to less severe dendrite segregation. Ni-based superalloys fabricated by DED can accommodate more refractory elements. These results would offer a valuable reference for designing composition of DED Ni-based superalloys.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Carbide Evolution of a Directionally Solidified Ni-based Superalloy during Long-term Exposure
    Xuan, Xiao
    Le, Xu
    Chao, Zeng
    Sheng, Liyuan
    Guo, Yong'an
    Zhou, Lanzhang
    MANAGEMENT, MANUFACTURING AND MATERIALS ENGINEERING, PTS 1 AND 2, 2012, 452-453 : 72 - +
  • [2] The Effect of Long-Term Thermal Exposure on the Microstructure and Stress Rupture Property of a Directionally Solidified Ni-Based Superalloy
    Jiang, X. W.
    Wang, D.
    Xie, G.
    Li, H.
    Lou, L. H.
    Zhang, J.
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2014, 45A (13): : 6016 - 6026
  • [3] The Effect of Long-Term Thermal Exposure on the Microstructure and Stress Rupture Property of a Directionally Solidified Ni-Based Superalloy
    X. W. Jiang
    D. Wang
    G. Xie
    H. Li
    L. H. Lou
    J. Zhang
    Metallurgical and Materials Transactions A, 2014, 45 : 6016 - 6026
  • [4] Long-term thermal exposure responses of the microstructure and properties of a cast Ni-base superalloy
    Qin, X. Z.
    Guo, J. T.
    Yuan, C.
    Hou, J. S.
    Zhou, L. Z.
    Ye, H. Q.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 543 : 121 - 128
  • [5] Effects of long-term thermal exposure on the microstructure and properties of a cast Ni-base superalloy
    Qin, X. Z.
    Guo, J. T.
    Yuan, C.
    Chen, C. L.
    Ye, H. Q.
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2007, 38A (12): : 3014 - 3022
  • [6] Effects of Long-Term Thermal Exposure on the Microstructure and Properties of a Cast Ni-Base Superalloy
    X.Z. Qin
    J.T. Guo
    C. Yuan
    C.L. Chen
    H.Q. Ye
    Metallurgical and Materials Transactions A, 2007, 38 : 3014 - 3022
  • [7] Microstructure and Mechanical Property of a Directional Ni-based Superalloy during Long-term Exposure
    Xiao, Xuan
    Xu, Le
    Zeng, Chao
    Sheng, Liyuan
    Guo, Yong'an
    Zhou, Lanzhang
    MANAGEMENT, MANUFACTURING AND MATERIALS ENGINEERING, PTS 1 AND 2, 2012, 452-453 : 51 - +
  • [8] EVOLUTIONS OF MICROSTRUCTURES AND MECHANICAL PROPERTIES OF TWO CAST Ni-BASED SUPERALLOYS DURING LONG-TERM THERMAL EXPOSURE
    Qin Xuezhi
    Guo Jianting
    Yuan Chao
    Hou Jieshan
    Zhou Lanzhang
    Ye Hengqiang
    ACTA METALLURGICA SINICA, 2010, 46 (02) : 213 - 220
  • [9] Precipitation characteristics of a nickel-based single-crystal superalloy after long-term thermal exposure
    Huang, Ming
    Yang, Xinye
    Liu, Weiwei
    Li, Jiarong
    Yang, Sen
    Qin, Yuan
    INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2018, 109 (09) : 811 - 818
  • [10] Micro-mechanism during long-term creep of a precipitation-strengthened Ni-based superalloy
    Song, Xiaoqing
    Tang, Liying
    Chen, Zheng
    Zhou, Rongcan
    JOURNAL OF MATERIALS SCIENCE, 2017, 52 (08) : 4587 - 4598
12345