Corrosion Fatigue Crack Initiation in Zr-2.5Nb

被引：0
|
作者：
Nordin, H. M. [1 ]
Phillion, A. J. [1 ]
Karlsen, T. M. [2 ]
Persaud, S. [1 ]
机构：
[1] Chalk River Labs, Canadian Nucl Labs, Chalk River, ON K0J 1J0, Canada
[2] OECD Halden Reactor Project, Inst Energy Technol, Halden, Norway
来源：
PROCEEDINGS OF THE 18TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL DEGRADATION OF MATERIALS IN NUCLEAR POWER SYSTEMS - WATER REACTORS, VOL 2 | 2018年
关键词：
Corrosion; Fatigue; Zr-2.5nb; Hydrogen; Crack initiation; DCPD; HYDROGEN; BEHAVIOR; ZIRCALOY;
D O I：
10.1007/978-3-319-68454-3_41
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In-service inspections of Zr-2.5Nb pressure tubes may reveal blunt flaws such as fretting wear or crevice corrosion marks. These flaws pose no immediate threat to the integrity of the pressure tube but may be potential fatigue crack initiation sites. An understanding of the effect of the coolant environment, specifically on fatigue crack initiation, is important in this context. Tests were conducted on notched transverse tensile specimens at 275 and 300 degrees C with a load rise time between 50 and 3600 s. Current tests investigated the effects of applied loading frequency and hydrogen on fatigue crack initiation. Results have indicated that long rise time and a water environment reduce the time to fatigue crack initiation in non-hydrided and pre-hydrided specimens as compared to tests conducted in air. If enough hydrogen is able to diffuse to the notch during the test, it may also be possible to reach conditions where there is an interaction between corrosion, fatigue and hydride cracking.
引用
收藏
页码：525 / 541
页数：17
相关论文
共 50 条
  • [1] CRACK INITIATION CRITERION AT NOTCHES IN ZR-2.5NB ALLOYS
    SAGAT, S
    SHI, SQ
    PULS, MP
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 176 (1-2): : 237 - 247
  • [2] EFFECT OF FLAW ORIENTATION ON DELAYED HYDRIDE CRACK INITIATION IN ZR-2.5NB PRESSURE TUBES
    Shek, Gordon K.
    Cui, Jun
    Scarth, Douglas A.
    Xu, Steven
    [J]. PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2013, VOL 6A: MATERIALS AND FABRICATION, 2014,
  • [3] Microstructural aspects of corrosion and hydrogen ingress in Zr-2.5Nb
    Urbanic, VF
    Griffiths, M
    Cox, B
    Adamson, R
    Hatano, Y
    [J]. ZIRCONIUM IN THE NUCLEAR INDUSTRY: TWELFTH INTERNATIONAL SYMPOSIUM, 2000, 1354 : 641 - 657
  • [4] Effect of unloading on crack growth rate of Zr-2.5Nb tubes
    Kim, Young Suk
    Makarevicius, Vidas
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2010, 405 (01) : 28 - 32
  • [5] Delayed Hydride Cracking Initiation at Notches in Zr-2.5Nb Alloys
    Cui, Jun
    Shek, Gordon K.
    Scarth, D. A.
    Wang, Zhirui
    [J]. JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 2009, 131 (04):
  • [6] Initiation and Arrest of Delayed Hydride Cracking in Zr-2.5Nb Tubes
    Kim, Young S.
    [J]. JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 2009, 131 (01):
  • [7] AN EXTENDED PROCESS-ZONE MODELING FRAMEWORK FOR OVERLOAD CRACK INITIATION IN ZR-2.5NB PRESSURE TUBES
    Xu, Steven X.
    Scarth, Douglas A.
    Cho, David
    [J]. PROCEEDINGS OF ASME 2022 PRESSURE VESSELS AND PIPING CONFERENCE, PVP2022, VOL 1, 2022,
  • [8] CRACK INITIATION AT LONG RADIAL HYDRIDES IN ZR-2.5NB PRESSURE TUBE MATERIAL AT ELEVATED-TEMPERATURES
    CHOUBEY, R
    PULS, MP
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1994, 25 (05): : 993 - 1004
  • [9] Galvanic corrosion evaluation of Zr-2.5Nb coupled with orthopaedic alloys
    Marek, M.
    Pawar, V.
    Tsai, S.
    Thomas, R.
    Sprague, J.
    Salehi, A.
    Hunter, G.
    [J]. MEDICAL DEVICE MATERIALS III: PROCEEDINGS FROM THE MATERIALS & PROCESSES FOR MEDICAL DEVICES CONFERENCE 2005, 2006, : 195 - +
  • [10] Corrosion of Zr-1Nb and Zr-2.5Nb in 0.1 M LiOH at 343°C
    Muller, S.
    Lanzani, L.
    [J]. INTERNATIONAL CONGRESS OF SCIENCE AND TECHNOLOGY OF METALLURGY AND MATERIALS, SAM - CONAMET 2013, 2015, 8 : 46 - 55
12345