Ultrasonic Examination for Safe End to Nozzle Dissimilar Metal Welds of Steam Generator

WANG Zhuowei; YU Jingsheng; WANG Jianjun

Feb. 2025

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WANG Zhuowei, YU Jingsheng, WANG Jianjun. Ultrasonic Examination for Safe End to Nozzle Dissimilar Metal Welds of Steam Generator[J]. Nuclear Power Engineering, 2014, 35(2): 76-78.

Citation:

WANG Zhuowei, YU Jingsheng, WANG Jianjun. Ultrasonic Examination for Safe End to Nozzle Dissimilar Metal Welds of Steam Generator[J]. Nuclear Power Engineering, 2014, 35(2): 76-78.

WANG Zhuowei, YU Jingsheng, WANG Jianjun. Ultrasonic Examination for Safe End to Nozzle Dissimilar Metal Welds of Steam Generator[J]. Nuclear Power Engineering, 2014, 35(2): 76-78.

Citation:

WANG Zhuowei, YU Jingsheng, WANG Jianjun. Ultrasonic Examination for Safe End to Nozzle Dissimilar Metal Welds of Steam Generator[J]. Nuclear Power Engineering, 2014, 35(2): 76-78.

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Ultrasonic Examination for Safe End to Nozzle Dissimilar Metal Welds of Steam Generator

1. Research Institute of Nuclear Power Operation, Wuhan, 430074, China;
2. Hainan Nuclear Power Co. Ltd. Haikou, 570125, China

Received Date: 2013-01-17
Rev Recd Date: 2014-01-10

Available Online: 2025-02-15

Abstract

Abstract

The safe-end weld of steam generator is narrow seam weld with dissimilar metal, the filling material is nickel alloy 152/182（material 690）. The interior structure is of great anisotropic, and fake signal may occur during the defect detection by ultrasonic wave and the error for defect location may be increased. Stratified inspection by ultrasonic transducers with different angle and focus is a practical method which is verified by the real inspection while the linear indication in the inside surface besides the interior flaws are detected.
- Steam Generator,
- Safe end weld,
- Ultrasonic examination