Fracture Morphology Analysis of Iodine Induced Stress Corrosion Cracking of N36 Zirconium Tube

YAN Meng; PENG Qian; ZHAO Wenjin; SHENG Zhongqi; DAI Xun

Mar. 2025

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YAN Meng, PENG Qian, ZHAO Wenjin, SHENG Zhongqi, DAI Xun. Fracture Morphology Analysis of Iodine Induced Stress Corrosion Cracking of N36 Zirconium Tube[J]. Nuclear Power Engineering, 2012, 33(S2): 47-50.

Citation:

YAN Meng, PENG Qian, ZHAO Wenjin, SHENG Zhongqi, DAI Xun. Fracture Morphology Analysis of Iodine Induced Stress Corrosion Cracking of N36 Zirconium Tube[J]. Nuclear Power Engineering, 2012, 33(S2): 47-50.

Citation:

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Fracture Morphology Analysis of Iodine Induced Stress Corrosion Cracking of N36 Zirconium Tube

Science and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2012-10-14
Rev Recd Date: 2012-12-08

Available Online: 2025-03-08

Abstract

Abstract

Hoop tensile test is performed on N36 zirconium tube ring specimen at 350℃ iodine gas en-vironment to study the I-SCC behavior of N36 zirconium tube under iodine action.The fracture surface after I-SCC is observed by scanning electron microscope,and the result shows that pitting is prone to take place at edge of specimen,and group of cracks propagate parallel to the fracture surface.There is no clear boundary between intergranular and transgranular crack.
- N36 zirconium tube,
- Hoop tensile,
- Iodine gas,
- Stress corrosion crack