Nodular Corrosion Investigation of N18 Zirconium Alloys

LI Qiang; HUANG Changjun; YANG Yanping; XU Long; LIANG Xue; ZHOU Bangxin

Volume 33 Issue S2

Mar. 2025

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Article Navigation > Nuclear Power Engineering > 2012 > 33(S2): 22-27,38

LI Qiang, HUANG Changjun, YANG Yanping, XU Long, LIANG Xue, ZHOU Bangxin. Nodular Corrosion Investigation of N18 Zirconium Alloys[J]. Nuclear Power Engineering, 2012, 33(S2): 22-27,38.

Citation:

LI Qiang, HUANG Changjun, YANG Yanping, XU Long, LIANG Xue, ZHOU Bangxin. Nodular Corrosion Investigation of N18 Zirconium Alloys[J]. Nuclear Power Engineering, 2012, 33(S2): 22-27,38.

LI Qiang, HUANG Changjun, YANG Yanping, XU Long, LIANG Xue, ZHOU Bangxin. Nodular Corrosion Investigation of N18 Zirconium Alloys[J]. Nuclear Power Engineering, 2012, 33(S2): 22-27,38.

Citation:

LI Qiang, HUANG Changjun, YANG Yanping, XU Long, LIANG Xue, ZHOU Bangxin. Nodular Corrosion Investigation of N18 Zirconium Alloys[J]. Nuclear Power Engineering, 2012, 33(S2): 22-27,38.

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Nodular Corrosion Investigation of N18 Zirconium Alloys

Laboratory for Microstructures, Shanghai University, Shanghai, 200444, China

Received Date: 2012-09-12
Rev Recd Date: 2012-12-12

Available Online: 2025-03-08

Abstract

Abstract

In the present work,the nodular corrosion properties in the steam（500 oC/ 10.3 MPa） of N18 zirconium alloys after different heat treatment were investigated.The nodular corrosion of N18 alloys was liable to occur after α +β binary phases at 780oC and α uniary phase treatment at 700oC.Microstructure ob-servation found that the dilution of alloying element（especially Nb） at high temperature contributed the dete-rioration of nodular resistance.Furthermore,the formed alloying elements depleted zone could not be elimi-nated effectively by large deformation or low-temperature annealing treatment.A sufficient solution treat-ment at β phases has been proved as an effective way to eliminate the alloying elements depleted zone.
- N18 zirconium alloy,
- Heat treatment,
- Microstructure,
- Nodular corrosion

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