Creep behavior of Grade 91 steel under uniaxial and multiaxial state of stress

被引：1
作者：
Ren, Facai [1 ]
Tang, Xiaoying [1 ]
机构：
[1] Shanghai Inst Special Equipment Inspect & Tech Re, 915 Jinshajiang Rd, Shanghai 200062, Peoples R China
来源：
2017 3RD INTERNATIONAL CONFERENCE ON APPLIED MATERIALS AND MANUFACTURING TECHNOLOGY (ICAMMT 2017) | 2017年 / 242卷
关键词：
DEFORMATION; MECHANISMS; LIFE;
D O I：
10.1088/1757-899X/242/1/012072
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Creep rupture behavior of Grade 91 heat-resistant steel used for steam cooler under uniaxial and multiaxial state of stress was investigated. Creep tests were conducted at the temperature of 923K under the stress 125MPa. The notch root radii (r) of doubled circumferentially U-notched specimens were 0.6 and 6 mm. The creep rupture life of Grade 91 steel was found to increase with the increasing of notch acuity ratio. The creep rupture mechanism was investigated based on the SEM fractography analysis.
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页数：4
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    [J]. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2008, 9 (01)
  • [2] Creep deformation in a modified 9Cr-1Mo steel
    Anderson, P
    Bellgardt, T
    Jones, FL
    [J]. MATERIALS SCIENCE AND TECHNOLOGY, 2003, 19 (02) : 207 - 213
  • [3] Research on representative stress and fracture ductility of P92 steel under multiaxial creep
    Chang, Yuan
    Xu, Hong
    Ni, Yongzhong
    Lan, Xiang
    Li, Hongyuan
    [J]. ENGINEERING FAILURE ANALYSIS, 2016, 59 : 140 - 150
  • [4] Long-term microstructural degradation and creep strength in Gr.91 steel
    Chen, R. P.
    Armaki, H. Ghassemi
    Maruyama, K.
    Igarashi, M.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (13-14): : 4390 - 4394
  • [5] Recent advances in creep-resistant steels for power plant applications
    Ennis, PJ
    Czyrska-Filemonowicz, A
    [J]. SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2003, 28 (3-4): : 709 - 730
  • [6] Contribution of recovery mechanisms of microstructure during long-term creep of Gr.91 steels
    Ghassemi-Armaki, H.
    Chen, R. P.
    Maruyama, K.
    Igarashi, M.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2013, 433 (1-3) : 23 - 29
  • [7] Creep life prediction of 9Cr-1Mo steel under multiaxial state of stress
    Goyal, Sunil
    Laha, K.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 615 : 348 - 360
  • [8] Finite element analysis of uniaxial and multiaxial state of stress on creep rupture behaviour of 2.25Cr-1Mo steel
    Goyal, Sunil
    Laha, K.
    Das, C. R.
    Selvi, S. Panneer
    Mathew, M. D.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 563 : 68 - 77
  • [9] Effect of multi-axial stress state on creep behavior and stress rupture life of a Ni-based DS superalloy
    Huang, Jia
    Shi, Duoqi
    Yang, Xiaoguang
    Hu, Xiaoan
    [J]. COMPUTATIONAL MATERIALS SCIENCE, 2014, 85 : 20 - 31
  • [10] Creep deformation mechanisms in modified 9Cr-1Mo steel
    Shrestha, Triratna
    Basirat, Mehdi
    Charit, Indrajit
    Potirniche, Gabriel P.
    Rink, Karl K.
    Sahaym, Uttara
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2012, 423 (1-3) : 110 - 119
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