Analysis of Cold Crack of AP1000 Steam Generator Tube Sheet Cladding

ZHENG Zhangli; WU Zhiyuan; CAO Ding

Volume 33 Issue 5

Mar. 2025

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ZHENG Zhangli, WU Zhiyuan, CAO Ding. Analysis of Cold Crack of AP1000 Steam Generator Tube Sheet Cladding[J]. Nuclear Power Engineering, 2012, 33(5): 120-123.

Citation:

ZHENG Zhangli, WU Zhiyuan, CAO Ding. Analysis of Cold Crack of AP1000 Steam Generator Tube Sheet Cladding[J]. Nuclear Power Engineering, 2012, 33(5): 120-123.

ZHENG Zhangli, WU Zhiyuan, CAO Ding. Analysis of Cold Crack of AP1000 Steam Generator Tube Sheet Cladding[J]. Nuclear Power Engineering, 2012, 33(5): 120-123.

Citation:

ZHENG Zhangli, WU Zhiyuan, CAO Ding. Analysis of Cold Crack of AP1000 Steam Generator Tube Sheet Cladding[J]. Nuclear Power Engineering, 2012, 33(5): 120-123.

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Analysis of Cold Crack of AP1000 Steam Generator Tube Sheet Cladding

State Nuclear Power Engineering Co., Lt. d, Shanghai, 200233, China

Received Date: 2011-05-30
Rev Recd Date: 2011-07-11

Available Online: 2025-03-08

Abstract

Abstract

This paper discusses the causes of AP1000 Steam Generator（SG） tube sheet underclad cracking.Base metal weldability,hydrogen influence,welding techniques and weld residue stresses are all discussed in details in contributing to the underclad cracking problems.Feasible and realistic improvement plans are proposed for the AP1000 SG tube sheet cladding,including the controlling forging procurement,welding process and cladding techniques.
- Steam Generator,
- Tube sheet,
- Cladding,
- Cold Crack,
- Pre-heating,
- Post-heating

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