Research Progress on Failure Mechanisms of TP347H Boiler Steel Tube

ZHANG Jun; ZHENG Zhunbei; YANG Zhanjun; SUN Xingxin; LI Mengyang; ZHANG Jianwei

doi:10.11973/jxgccl202102002

Materials and Mechanical Engineering > 2021 > 45(2): 7-14. > DOI: 10.11973/jxgccl202102002

ZHANG Jun, ZHENG Zhunbei, YANG Zhanjun, SUN Xingxin, LI Mengyang, ZHANG Jianwei. Research Progress on Failure Mechanisms of TP347H Boiler Steel Tube[J]. Materials and Mechanical Engineering, 2021, 45(2): 7-14. DOI: 10.11973/jxgccl202102002

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Research Progress on Failure Mechanisms of TP347H Boiler Steel Tube

Northwest Power Technology Research Institute, China Datang Group Science and Technology Research Institute Co., Ltd., Xi'an 710021, China

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Received Date: March 18, 2020
Revised Date: November 16, 2020

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Abstract

Abstract

The austenitic heat-resistant steel TP347H is widely used in heating tubes of thermal power unit boilers. Combining the service performance of austenitic heat-resistant steel tubes and the failure cases of TP347H steel tube bursts, the six common failure mechanisms, including intergranular corrosion, stress corrosion cracking, microstructure aging, oxidative corrosion, original defects and martensite transformation, of TP347H steel heating tubes during boiler operation are reviewed. The failure characteristics, analysis methods and preventive measures are described.
- thermal power unit,
- austenitic heat-resistant steel,
- TP347H steel,
- failure analysis,
- failure mechanism

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References (63)

References

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