Effect of Final Annealing Temperature on Microstructure and Properties of N36 Alloy Tube

Jia Yuzhen; Qiu Jun; Cheng Zhuqing; Yang Zhongbo

doi:10.13832/j.jnpe.2023.S1.0163

Volume 44 Issue S1

Jun. 2023

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Jia Yuzhen, Qiu Jun, Cheng Zhuqing, Yang Zhongbo. Effect of Final Annealing Temperature on Microstructure and Properties of N36 Alloy Tube[J]. Nuclear Power Engineering, 2023, 44(S1): 163-167. doi: 10.13832/j.jnpe.2023.S1.0163

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Jia Yuzhen, Qiu Jun, Cheng Zhuqing, Yang Zhongbo. Effect of Final Annealing Temperature on Microstructure and Properties of N36 Alloy Tube[J]. Nuclear Power Engineering, 2023, 44(S1): 163-167. doi: 10.13832/j.jnpe.2023.S1.0163

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Effect of Final Annealing Temperature on Microstructure and Properties of N36 Alloy Tube

doi: 10.13832/j.jnpe.2023.S1.0163

Science and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2023-02-21
Rev Recd Date: 2023-05-10
Publish Date: 2023-06-15

Abstract

Abstract

In order to optimize and control the microstructure and properties of N36 alloy tube, the effect of final annealing temperature on the microstructure and properties of N36 alloy tube was studied by analyzing the performance data of N36 alloy tube at different final annealing temperatures (520~560°C). The results show that different final annealing temperatures mainly affect the recrystallization fraction and grain size of the N36 alloy tubes, while have little influence on the second phase particles. The higher the final annealing temperature, the higher the recrystallization fraction and the larger the grain size of N36 alloy tube. With the increase of final annealing temperature, the room temperature and high temperature axial and circumferential tensile strength decreased and the elongation increased significantly, which was mainly caused by the influence of final annealing process on the recrystallization fraction and grain size of N36 alloy tube. With the increase of final annealing temperature, the corrosion resistance of N36 alloy tube is improved, and the corrosion resistance of N36 alloy tube with final annealing temperature of 560°C is obviously better than other tubes, mainly due to the highest recrystallization fraction of N36 alloy pipe with final annealing temperature of 560°C.
- N36 alloy tube,
- Annealing temperature,
- Microstructure,
- Property

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References(12)

References

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