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Discussion

The Necessity to Reexamine Key Component Material With Spectrometry Analysis in the Nuclear Island

[+] Author and Article Information
Chongzhi Wu

State Nuclear Power Engineering Company,
No.2 Building, Lane 888 Tianlin Road,
Min Hang District,
Shanghai 200233, China
e-mail: wuchongzhi@snpec.com.cn

Jindong Zhang

State Nuclear Power Engineering Company,
No.2 Building, Lane 888 Tianlin Road,
Min Hang District,
Shanghai 200233, China
e-mail: zhangjindong@snpec.com.cn

Zongkui Wang

State Nuclear Power Engineering Company,
No.2 Building, Lane 888 Tianlin Road,
Min Hang District,
Shanghai 200233, China
e-mail: wangzongkui@snpec.com.cn

Zengkui Zhang

State Nuclear Power Engineering Company,
No.2 Building, Lane 888 Tianlin Road,
Min Hang District,
Shanghai 200233, China
e-mail: zhangzengkui@snpec.com.cn

Shenqing Fu

State Nuclear Power Engineering Company,
No.2 Building, Lane 888 Tianlin Road,
Min Hang District,
Shanghai 200233, China
e-mail: fushenqing@snpec.com.cn

1Corresponding author.

Manuscript received October 22, 2017; final manuscript received December 5, 2018; published online March 15, 2019. Assoc. Editor: Asif Arastu.

ASME J of Nuclear Rad Sci 5(2), 025501 (Mar 15, 2019) (4 pages) Paper No: NERS-17-1172; doi: 10.1115/1.4042221 History: Received October 22, 2017; Revised December 05, 2018

In order to avoid the misuse of metal material in nuclear projects, typical cases happened in advanced passive pressurized water reactor (AP1000) nuclear power projects in China are analyzed. The analysis finding indicates that some cases were caused by defective procedures or undemanding processes performance, and all cases are found to be relevant to human error. It is considered that procedural management cannot completely avoid the misuse of metal material when it is caused by human error, and spectrometry analysis is suggested to reexamine the material of key components.

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References

Kotecki, D. J. , and Siewert, T. A. , 1992, “ WRC-1992 Constitution Diagram for Stainless Steel Weld Metals: A Modification of the WRC-1988 Diagram,” Weld. J., 71(5), pp. 171S–178S.
Kotecki, D. J. , 2013, “ Stainless Q&A,” Weld. J., 92(3), pp. 14–15.

Figures

Grahic Jump Location
Fig. 1

A WRC-1992 diagram with expanded nickel equivalent axis is used to analyze the weld metal in case 2

Grahic Jump Location
Fig. 2

Schaeffler diagram is used to analyze the weld metal in case 4

Tables

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