Characterization of austenitic stainless steel pipe welds after prolonged power plant exposure

Hannu Hänninen; Pertti Aaltonen; Pertti Nenonen; Rachel Jargelius; Börje Lehtinen

doi:10.5006/1.3299817

Characterization of austenitic stainless steel pipe welds after prolonged power plant exposure

Hannu Hänninen
, Pertti Aaltonen
, Pertti Nenonen
, Rachel Jargelius
, Börje Lehtinen

VTT Technical Research Centre of Finland

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

9 Citations (Scopus)

Abstract

An austenitic stainless steel (AISI 304) pipe weldment, which had been in operation about 45,000 h at 230°C in the Ringhals 1 BWR plant, was characterized using electrochemical sensitization testing methods (electrochemical potentiokinetic reactivation [EPR] and double-loop EPR), as well as transmission electron microscopy. The weld heat-affected zone (HAZ) showed a sensitized zone between two and five mm from the fusion line in which grain boundary carbides formed almost a continuous chain, and Cr-depletion was evident.

Original language	English
Pages (from-to)	114-123
Journal	Corrosion
Volume	48
Issue number	2
DOIs	https://doi.org/10.5006/1.3299817
Publication status	Published - 1992
MoE publication type	A1 Journal article-refereed

Keywords

welding

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10.5006/1.3299817

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title = "Characterization of austenitic stainless steel pipe welds after prolonged power plant exposure",

abstract = "An austenitic stainless steel (AISI 304) pipe weldment, which had been in operation about 45,000 h at 230°C in the Ringhals 1 BWR plant, was characterized using electrochemical sensitization testing methods (electrochemical potentiokinetic reactivation [EPR] and double-loop EPR), as well as transmission electron microscopy. The weld heat-affected zone (HAZ) showed a sensitized zone between two and five mm from the fusion line in which grain boundary carbides formed almost a continuous chain, and Cr-depletion was evident.",

keywords = "welding",

author = "Hannu H{\"a}nninen and Pertti Aaltonen and Pertti Nenonen and Rachel Jargelius and B{\"o}rje Lehtinen",

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year = "1992",

doi = "10.5006/1.3299817",

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journal = "Corrosion",

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T1 - Characterization of austenitic stainless steel pipe welds after prolonged power plant exposure

AU - Hänninen, Hannu

AU - Aaltonen, Pertti

AU - Nenonen, Pertti

AU - Jargelius, Rachel

AU - Lehtinen, Börje

N1 - Project code: MET00135

PY - 1992

Y1 - 1992

N2 - An austenitic stainless steel (AISI 304) pipe weldment, which had been in operation about 45,000 h at 230°C in the Ringhals 1 BWR plant, was characterized using electrochemical sensitization testing methods (electrochemical potentiokinetic reactivation [EPR] and double-loop EPR), as well as transmission electron microscopy. The weld heat-affected zone (HAZ) showed a sensitized zone between two and five mm from the fusion line in which grain boundary carbides formed almost a continuous chain, and Cr-depletion was evident.

AB - An austenitic stainless steel (AISI 304) pipe weldment, which had been in operation about 45,000 h at 230°C in the Ringhals 1 BWR plant, was characterized using electrochemical sensitization testing methods (electrochemical potentiokinetic reactivation [EPR] and double-loop EPR), as well as transmission electron microscopy. The weld heat-affected zone (HAZ) showed a sensitized zone between two and five mm from the fusion line in which grain boundary carbides formed almost a continuous chain, and Cr-depletion was evident.

KW - welding

U2 - 10.5006/1.3299817

DO - 10.5006/1.3299817

M3 - Article

SN - 0010-9312

VL - 48

SP - 114

EP - 123

JO - Corrosion

JF - Corrosion

IS - 2

ER -

Characterization of austenitic stainless steel pipe welds after prolonged power plant exposure

Abstract

Keywords

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