Study on Internal Pressure Burst, Creep and Fatigue Properties of ODS-FeCrAl Alloy Tube

Liu Yang; Lu Zhiwei; Ge Hongen; Wu Lixiang; Xue Jiaxiang; Liao Yehong

doi:10.13832/j.jnpe.2024.S1.0145

Volume 45 Issue S1

Jun. 2024

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Liu Yang, Lu Zhiwei, Ge Hongen, Wu Lixiang, Xue Jiaxiang, Liao Yehong. Study on Internal Pressure Burst, Creep and Fatigue Properties of ODS-FeCrAl Alloy Tube[J]. Nuclear Power Engineering, 2024, 45(S1): 145-151. doi: 10.13832/j.jnpe.2024.S1.0145

Citation:

Liu Yang, Lu Zhiwei, Ge Hongen, Wu Lixiang, Xue Jiaxiang, Liao Yehong. Study on Internal Pressure Burst, Creep and Fatigue Properties of ODS-FeCrAl Alloy Tube[J]. Nuclear Power Engineering, 2024, 45(S1): 145-151. doi: 10.13832/j.jnpe.2024.S1.0145

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Study on Internal Pressure Burst, Creep and Fatigue Properties of ODS-FeCrAl Alloy Tube

doi: 10.13832/j.jnpe.2024.S1.0145

Liu Yang^{1, 2
,},
Lu Zhiwei^{1, 2},
Ge Hongen^{1, 2},
Wu Lixiang^{1, 2},
Xue Jiaxiang^{1, 2},
Liao Yehong^{1, 2}

1.
China Nuclear Power Technology Research Institute Co., Ltd., Shenzhen, Guangdong, 518000, China
2.
High-safety Accident Tolerant Fuel Technical Engineering Laboratory, Shenzhen, Guangdong, 518000, China

Received Date: 2023-05-26
Rev Recd Date: 2024-04-28
Publish Date: 2024-06-15

Abstract

Abstract

The microstructure, internal pressure burst, creep and fatigue properties of oxide dispersion strengthened (ODS)-FeCrAl alloy tube were studied by transmission electron microscopy (TEM), internal pressure burst, creep and fatigue test machine. The results show that a large number of nano-second phase particles are dispersed in the matrix of ODS-FeCrAl alloy tube, with an average diameter of about 8.76 nm and a volume density of 6.8×10²² m^–3. The burst strength of ODS-FeCrAl alloy tube is 1158 MPa at room temperature; The burst strength of the ODS-FeCrAl alloy decrease gradually with the increase of temperature; At 1000℃, the ODS-FeCrAl alloy tube does not lose its pressure-bearing ability, and its burst strength is 81 MPa. The ODS-FeCrAl alloy tube shows excellent internal pressure creep resistance (the creep deformation is 0.9%) under the test condition of 350℃/30 MPa. When the peak fatigue loading pressure is lower than 30 MPa at 350°C, there is no fatigue failure of ODS-FeCrAl alloy tube after 1000000 cycles of loading. The internal pressure burst, creep, and fatigue properties of ODS FeCrAl alloy tube are significantly excellent.
- ODS-FeCrAl alloy tube,
- Microstructure,
- Internal pressure burst,
- Internal pressure creep,
- Internal pressure fatigue

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References(21)

References

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