Cracking Induced by Oxidation-Hydriding in Welding Joints of Zircaloy-4 Plates

ZHOU Bang-xin; YAO Mei-yi; MIAO Zhi; LI Qiang; LIU Wen-qing

Feb. 2006

Article Contents

Article Navigation > Nuclear Power Engineering > 2006 > 27(1): 34-36

ZHOU Bang-xin, YAO Mei-yi, MIAO Zhi, LI Qiang, LIU Wen-qing. Cracking Induced by Oxidation-Hydriding in Welding Joints of Zircaloy-4 Plates[J]. Nuclear Power Engineering, 2006, 27(1): 34-36.

Citation:

ZHOU Bang-xin, YAO Mei-yi, MIAO Zhi, LI Qiang, LIU Wen-qing. Cracking Induced by Oxidation-Hydriding in Welding Joints of Zircaloy-4 Plates[J]. Nuclear Power Engineering, 2006, 27(1): 34-36.

ZHOU Bang-xin, YAO Mei-yi, MIAO Zhi, LI Qiang, LIU Wen-qing. Cracking Induced by Oxidation-Hydriding in Welding Joints of Zircaloy-4 Plates[J]. Nuclear Power Engineering, 2006, 27(1): 34-36.

Citation:

ZHOU Bang-xin, YAO Mei-yi, MIAO Zhi, LI Qiang, LIU Wen-qing. Cracking Induced by Oxidation-Hydriding in Welding Joints of Zircaloy-4 Plates[J]. Nuclear Power Engineering, 2006, 27(1): 34-36.

PDF( 221 KB)

Cracking Induced by Oxidation-Hydriding in Welding Joints of Zircaloy-4 Plates

1. Institute of Materials, Shanghai University, 200072, China;
2. Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2004-11-29
Rev Recd Date: 2005-03-27

Available Online: 2025-07-29

Abstract

Abstract

The welding joints of three plates of Zircaloy-4 obtained by hot rolling diffusion welding at 800℃ in vacuum were cracked during autoclave tests at 400℃ superheated steam after exposure longer than 150 days.The section of specimens was examined by optical microscopy and the composition of mi-cro-area at the welding seams and the matrix was analyzed and compared.The result shows that the con-tamination of carbon at the welding surface and the combination of oxidation and hydriding induced cracking is responsible for the cracking of welding seams during autoclave testing.
- Zircaloy-4,
- Corrosion,
- Zirconium hydride,
- Cracking