Lead-induced stress corrosion cracking behavior of mechanically surface-treated alloy 690

Nana Li; San-Qiang Shi; Jingli Luo; Jian Lu; Ning Wang

doi:10.1080/21663831.2016.1164259

Lead-induced stress corrosion cracking behavior of mechanically surface-treated alloy 690

Nana Li, San-Qiang Shi, Jingli Luo, Jian Lu, Ning Wang

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

ï¿½ 2016 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Lead (Pb) is one of the impurities that cause stress corrosion cracking (SCC) of the tubing material in the steam generator (SG), the corrosion behavior of surface mechanical attrition treatment (SMAT) treated surface was measured for alloy 690 in simulated SG condition with and without Pb contamination. Even though the polarization curves indicated the corrosion potential of SMAT-processed specimens shifted negatively, the positive effect of SMAT on resistance of SCC was observed. The reduced susceptibility to lead-induced stress corrosion cracking may be attributed to the formation of stable passive film and the significant compressive stress on the surface induced by SMAT.

Original language	English
Pages (from-to)	180-184
Number of pages	5
Journal	Materials Research Letters
Volume	4
Issue number	3
DOIs	https://doi.org/10.1080/21663831.2016.1164259
Publication status	Published - 30 Mar 2016

Keywords

Alloy 690
Nanocrystalline
PbSCC
SMAT

ASJC Scopus subject areas

General Materials Science

More information

10.1080/21663831.2016.1164259

http://hdl.handle.net/10397/65932

Cite this

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T1 - Lead-induced stress corrosion cracking behavior of mechanically surface-treated alloy 690

AU - Li, Nana

AU - Shi, San-Qiang

AU - Luo, Jingli

AU - Lu, Jian

AU - Wang, Ning

PY - 2016/3/30

Y1 - 2016/3/30

N2 - ï¿½ 2016 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Lead (Pb) is one of the impurities that cause stress corrosion cracking (SCC) of the tubing material in the steam generator (SG), the corrosion behavior of surface mechanical attrition treatment (SMAT) treated surface was measured for alloy 690 in simulated SG condition with and without Pb contamination. Even though the polarization curves indicated the corrosion potential of SMAT-processed specimens shifted negatively, the positive effect of SMAT on resistance of SCC was observed. The reduced susceptibility to lead-induced stress corrosion cracking may be attributed to the formation of stable passive film and the significant compressive stress on the surface induced by SMAT.

AB - ï¿½ 2016 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Lead (Pb) is one of the impurities that cause stress corrosion cracking (SCC) of the tubing material in the steam generator (SG), the corrosion behavior of surface mechanical attrition treatment (SMAT) treated surface was measured for alloy 690 in simulated SG condition with and without Pb contamination. Even though the polarization curves indicated the corrosion potential of SMAT-processed specimens shifted negatively, the positive effect of SMAT on resistance of SCC was observed. The reduced susceptibility to lead-induced stress corrosion cracking may be attributed to the formation of stable passive film and the significant compressive stress on the surface induced by SMAT.

KW - Alloy 690

KW - Nanocrystalline

KW - PbSCC

KW - SMAT

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DO - 10.1080/21663831.2016.1164259

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SP - 180

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JO - Materials Research Letters

JF - Materials Research Letters

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ER -

Lead-induced stress corrosion cracking behavior of mechanically surface-treated alloy 690

Abstract

Keywords

ASJC Scopus subject areas

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