The role of microstructure in fatigue crack initiation of 9-12%Cr reduced activation ferritic-martensitic steel

被引：38
|
作者：
Batista, M. N. [1 ]
Marinelli, M. C. [1 ]
Herenu, S. [1 ]
Alvarez-Armas, I. [1 ]
机构：
[1] CONICET UNR, Inst Fis Rosario, RA-2000 Rosario, Argentina
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2015年 / 72卷
关键词：
Ferritic-martensitic steel; LCF; Microstructure; Microcrack nucleation; EBSD technique; LOW-CYCLE FATIGUE; EUROFER; 97; EVOLUTION; BEHAVIOR;
D O I：
10.1016/j.ijfatigue.2014.11.006
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Electron back-scattered diffraction together with scanning and transmission electron microscopy were used to study nucleation of microstructural fatigue cracks in reduced-activation ferritic-martensitic steel, EUROFER 97. Cylindrical specimens were cycled over different plastic-strain ranges in order to evaluate the evolution of the dislocation structure. Surface-damage evolution was studied in smooth notched specimens by an optical in situ system equipped with a high-resolution camera. In order to understand the crack-initiation mechanism, the dislocation microstructure that develops in the near-surface regions of the notch was compared with that of the bulk. The results demonstrate a strong influence of lath-martensite boundaries on fatigue-crack nucleation. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：75 / 79
页数：5
相关论文
共 50 条
  • [1] The role of microstructure in fatigue crack initiation and propagation in 9-12Cr ferritic-martensitic steels
    Batista, M. N.
    Herenu, S.
    Alvarez-Armas, I.
    [J]. XVII INTERNATIONAL COLLOQUIUM ON MECHANICAL FATIGUE OF METALS (ICMFM17), 2014, 74 : 228 - 231
  • [2] Irradiation behavior of ferritic-martensitic 9-12%Cr steels
    Horsten, MG
    van Osch, EV
    Gelles, DS
    Hamilton, ML
    [J]. EFFECTS OF RADIATION ON MATERIALS: 19TH INTERNATIONAL SYMPOSIUM, 2000, 1366 : 579 - 593
  • [3] Impact of Thermomechanical Fatigue on Microstructure Evolution of a Ferritic-Martensitic 9 Cr and a Ferritic, Stainless 22 Cr Steel
    Kuhn, Bernd
    Lopez Barrilao, Jennifer
    Fischer, Torsten
    [J]. APPLIED SCIENCES-BASEL, 2020, 10 (18):
  • [4] Thermomechanical Fatigue Behavior of a Reduced Activation Ferritic-Martensitic Steel
    Nagesha, A.
    Kannan, R.
    Srinivasan, V. S.
    Parameswaran, P.
    Sandhya, R.
    Choudhary, B. K.
    Mathew, M. D.
    Jayakumar, T.
    Kumar, E. Rajendra
    [J]. STRUCTURAL INTEGRITY, 2014, 86 : 88 - 94
  • [5] Effect of initial microstructure on surface relief and fatigue crack initiation in AISI 410 ferritic-martensitic steel
    Batista, M. N.
    Marinelli, M. C.
    Alvarez-Armas, I.
    [J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2019, 42 (01) : 61 - 68
  • [6] Corrosion behavior of 9-12% Cr ferritic-martensitic steels in supercritical water
    Tan, L.
    Ren, X.
    Allen, T. R.
    [J]. CORROSION SCIENCE, 2010, 52 (04) : 1520 - 1528
  • [7] Development of novel diffusion coatings for 9-12% Cr ferritic-martensitic steels
    Rohr, V
    Schütze, M
    Fortuna, E
    Tsipas, DN
    Milewska, A
    Pérez, FJ
    [J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2005, 56 (12): : 874 - 881
  • [8] Fatigue crack initiation in a ferritic-martensitic steel under irradiated and unirradiated conditions
    Bertsch, J
    Möslang, A
    Riesch-Oppermann, H
    [J]. ECF 12: FRACTURE FROM DEFECTS, VOLS. I-III, 1998, : 363 - 368
  • [9] Effects of yttrium on microstructure and properties of reduced activation ferritic-martensitic steel
    Qiu, Guoxing
    Zhan, Dongping
    Li, Changsheng
    Qi, Min
    Jiang, Zhouhua
    Zhang, Huishu
    [J]. MATERIALS SCIENCE AND TECHNOLOGY, 2018, 34 (16) : 2018 - 2029
  • [10] Environmental effect of steam on crack closure mechanisms of a 9-12% Cr ferritic/martensitic steel
    Fischer, T.
    Kuhn, B.
    [J]. INTERNATIONAL JOURNAL OF FATIGUE, 2020, 132
12345