EVALUATION OF THERMAL AGING EMBRITTLEMENT IN MAIN COOLANT PIPE STEEL BY SMALL PUNCH TEST
To evaluate the thermal aging embrittlement in the main coolant pipe material of nuclear power plants, a series of small punch testes at room temperature were performed on Z3CN20.09M duplex stainless steel aged at 400℃ for up to 10000 hours, and then the fractured specimens were examined by the SEM. The test results indicate that the aging heat treatment led to a slight increase of the strength, and caused an initial increase on the small punch energy followed by continual decrease when the aging time extends 1000 hours. Besides, the fracture mode of specimens aged at 400℃ for different time exhibited some discrepancy, but the difference is not clearly to reflect the thermal aging effect on the material.
Fei Xue Weiwei Yu Xiao Chen Yan Liu Zhenhao Shi Guogang Shu Xitao Wang
Suzhou Nuclear Power Research Institute,Suzhou, Jiangsu, China Suzhou Nuclear Power Research Institute, Suzhou,Jiangsu, China Key Laboratory of Advanced Metals and Materials, University of Science & Technology Beijing, Beijing
国际会议
18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)
西安
英文
1-4
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）