Negative Creep of Single Crystals of Nickel-Based Superalloys

被引：0
|
作者：
Epishin, A. I. [1 ]
Lisovenko, D. S. [2 ]
机构：
[1] RAS, Merzhanov Inst Struct Macrokinet & Mat Sci, Chernogolovka 142432, Moscow Region, Russia
[2] RAS, Ishlinsky Inst Problems Mech, Moscow 119526, Russia
来源：
MECHANICS OF SOLIDS | 2024年 / 59卷 / 03期
关键词：
single crystals of nickel-based superalloys; negative creep; ordering of the crystal structure; residual stresses; VOLUME CONTRACTION; MICROSTRUCTURE; STRESSES; MISFIT; CR;
D O I：
10.1134/S0025654424604452
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
AbstractNegative creep of single crystals of two nickel-based superalloys has been studied. This phenomenon was observed for both alloys at temperatures of 980-1000 degrees C and low or zero loading stresses. It is assumed that the main reason for negative creep is the formation of short-range order of atoms in the highly alloyed lattice of the matrix gamma-phase. Additional factors influencing the magnitude and anisotropy of negative creep deformation can be the relaxation of residual stresses: at the microscopic level - misfit stresses between the gamma-matrix and the strengthening gamma '-precipitates, and at the mesoscopic level - dendritic stresses between the dendritic axes and interdendritic regions.
引用
收藏
页码：1321 / 1329
页数：9
相关论文
共 50 条
  • [1] A MODEL OF NEGATIVE CREEP IN NICKEL-BASED SUPERALLOYS
    LOUCHET, F
    SCRIPTA METALLURGICA ET MATERIALIA, 1995, 33 (06): : 913 - 918
  • [2] Twin formation during creep in single crystals of nickel-based superalloys
    Ardakani, MG
    McLean, M
    Shollock, BA
    ACTA MATERIALIA, 1999, 47 (09) : 2593 - 2602
  • [3] Influence of the Sign of the γ/γ' Misfit on the Structure and Creep Strength of Single Crystals of Nickel-Based Superalloys
    Petrushin, N. V.
    Epishin, A. I.
    Svetlov, I. L.
    Nolze, G.
    Elyutin, E. S.
    Solov'ev, A. E.
    INORGANIC MATERIALS-APPLIED RESEARCH, 2023, 14 (01) : 13 - 22
  • [4] Creep of Single Crystals of Nickel-Based Superalloys at Ultra-High Homologous Temperature
    Alexander Epishin
    Bernard Fedelich
    Gert Nolze
    Sina Schriever
    Titus Feldmann
    Muhammad Farzik Ijaz
    Bernard Viguier
    Dominique Poquillon
    Yann Le Bouar
    Antoine Ruffini
    Alphonse Finel
    Metallurgical and Materials Transactions A, 2018, 49 : 3973 - 3987
  • [5] Creep of Single Crystals of Nickel-Based Superalloys at Ultra-High Homologous Temperature
    Epishin, Alexander
    Fedelich, Bernard
    Nolze, Gert
    Schriever, Sina
    Feldmann, Titus
    Ijaz, Muhammad Farzik
    Viguier, Bernard
    Poquillon, Dominique
    Le Bouar, Yann
    Ruffini, Antoine
    Finel, Alphonse
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2018, 49A (09): : 3973 - 3987
  • [6] Influence of the Sign of the γ/γ' Misfit on the Structure and Creep Strength of Single Crystals of Nickel-Based Superalloys
    N. V. Petrushin
    A. I. Epishin
    I. L. Svetlov
    G. Nolze
    E. S. Elyutin
    A. E. Solov’ev
    Inorganic Materials: Applied Research, 2023, 14 : 13 - 22
  • [7] Elastic waves in single crystals of nickel-based superalloys
    Rinkevich, AB
    Stepanova, NN
    Rodionov, DP
    Sazonova, VA
    PHYSICS OF METALS AND METALLOGRAPHY, 2003, 96 (02): : 227 - 235
  • [8] A continuum model for the anisotropic creep of single crystal nickel-based superalloys
    Prasad, SC
    Rajagopal, KR
    Rao, IJ
    ACTA MATERIALIA, 2006, 54 (06) : 1487 - 1500
  • [9] A model for the creep deformation behaviour of nickel-based single crystal superalloys
    Zhu, Z.
    Basoalto, H.
    Warnken, N.
    Reed, R. C.
    ACTA MATERIALIA, 2012, 60 (12) : 4888 - 4900
  • [10] CREEP LIFE PREDICTIONS IN NICKEL-BASED SUPERALLOYS
    KOUL, AK
    CASTILLO, R
    WILLETT, K
    MATERIALS SCIENCE AND ENGINEERING, 1984, 66 (02): : 213 - 226
12345