Environmentally assisted crack growth in one-dimensionally cold worked Alloy 690TT in primary water

Q. J. Peng; J. Hou; Toshio Yonezawa; T. Shoji; Z. M. Zhang; F. Huang; E. H. Han; W. Ke

doi:10.1016/j.corsci.2011.12.031

Environmentally assisted crack growth in one-dimensionally cold worked Alloy 690TT in primary water

Q. J. Peng, J. Hou, Toshio Yonezawa, T. Shoji, Z. M. Zhang, F. Huang, E. H. Han, W. Ke

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

Environmentally assisted crack growth in thermally treated Alloy 690 cold worked one-dimensionally to the thickness reduction of 25% in primary water was investigated. In the water at 50°C and dissolved hydrogen (DH) of 2.7-2.9ppm, the alloy showed a crack growth rate of <2.2×10 ^-9mm/s at a stress intensity factor of 35MPa√m. In the water at 340°C, stress corrosion crack growth rate of <1×10 ^-8mm/s was observed in the alloy over a DH range of 0.37-2.6ppm. Further, it was found that hydrogen could promote SCC growth when increasing DH from a very low level.

Original language	English
Pages (from-to)	81-88
Number of pages	8
Journal	Corrosion Science
Volume	57
DOIs	https://doi.org/10.1016/j.corsci.2011.12.031
Publication status	Published - 2012 Apr

Keywords

A. Superalloys
B. SEM
C. Stress corrosion

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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@article{5ba63d9fe9aa48ada7c2b189a8d8fefd,

title = "Environmentally assisted crack growth in one-dimensionally cold worked Alloy 690TT in primary water",

abstract = "Environmentally assisted crack growth in thermally treated Alloy 690 cold worked one-dimensionally to the thickness reduction of 25% in primary water was investigated. In the water at 50°C and dissolved hydrogen (DH) of 2.7-2.9ppm, the alloy showed a crack growth rate of <2.2×10 -9mm/s at a stress intensity factor of 35MPa√m. In the water at 340°C, stress corrosion crack growth rate of <1×10 -8mm/s was observed in the alloy over a DH range of 0.37-2.6ppm. Further, it was found that hydrogen could promote SCC growth when increasing DH from a very low level.",

keywords = "A. Superalloys, B. SEM, C. Stress corrosion",

author = "Peng, {Q. J.} and J. Hou and Toshio Yonezawa and T. Shoji and Zhang, {Z. M.} and F. Huang and Han, {E. H.} and W. Ke",

note = "Funding Information: This research was supported by the PEACE-E Phase II program jointly supported by EDF, EPRI, SSM, TEPCO, KEPCO, Tohoku EPCO, Chubu EPCO, JAPCO, HITACHI Ltd., MHI, TOSHIBA Co. and IHI, and partly supported by the Hundred-Talent program of Chinese Academy of Sciences. The authors wish to express their appreciation to Dr. P.L. Andresen for his fruitful discussions on the crack growth experiment. Support of Ms. D.C. Hou to the EBSD experiment is gratefully acknowledged.",

year = "2012",

month = apr,

doi = "10.1016/j.corsci.2011.12.031",

language = "English",

volume = "57",

pages = "81--88",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Limited",

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AU - Peng, Q. J.

AU - Hou, J.

AU - Yonezawa, Toshio

AU - Shoji, T.

AU - Zhang, Z. M.

AU - Huang, F.

AU - Han, E. H.

AU - Ke, W.

N1 - Funding Information: This research was supported by the PEACE-E Phase II program jointly supported by EDF, EPRI, SSM, TEPCO, KEPCO, Tohoku EPCO, Chubu EPCO, JAPCO, HITACHI Ltd., MHI, TOSHIBA Co. and IHI, and partly supported by the Hundred-Talent program of Chinese Academy of Sciences. The authors wish to express their appreciation to Dr. P.L. Andresen for his fruitful discussions on the crack growth experiment. Support of Ms. D.C. Hou to the EBSD experiment is gratefully acknowledged.

PY - 2012/4

Y1 - 2012/4

N2 - Environmentally assisted crack growth in thermally treated Alloy 690 cold worked one-dimensionally to the thickness reduction of 25% in primary water was investigated. In the water at 50°C and dissolved hydrogen (DH) of 2.7-2.9ppm, the alloy showed a crack growth rate of <2.2×10 -9mm/s at a stress intensity factor of 35MPa√m. In the water at 340°C, stress corrosion crack growth rate of <1×10 -8mm/s was observed in the alloy over a DH range of 0.37-2.6ppm. Further, it was found that hydrogen could promote SCC growth when increasing DH from a very low level.

AB - Environmentally assisted crack growth in thermally treated Alloy 690 cold worked one-dimensionally to the thickness reduction of 25% in primary water was investigated. In the water at 50°C and dissolved hydrogen (DH) of 2.7-2.9ppm, the alloy showed a crack growth rate of <2.2×10 -9mm/s at a stress intensity factor of 35MPa√m. In the water at 340°C, stress corrosion crack growth rate of <1×10 -8mm/s was observed in the alloy over a DH range of 0.37-2.6ppm. Further, it was found that hydrogen could promote SCC growth when increasing DH from a very low level.

KW - A. Superalloys

KW - B. SEM

KW - C. Stress corrosion

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