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Shear cracks of Zircaloy tube during cold pilgering: experimental investigation and numerical modeling
Zheng, Ce1,2; Song, Hongwu1; Deng, Siying1,3; Zhang, Shihong1
Corresponding AuthorSong, Hongwu(hwsong@imr.ac.cn)
2020-01-02
Source PublicationINTERNATIONAL JOURNAL OF MATERIAL FORMING
ISSN1960-6206
Pages13
AbstractCold pilgering process is a seamless tube forming technology, in which the metal is subjected to a series of small incremental deformations. It has been extensively applied for the manufacturing of cladding tube in nuclear reactors, due to high dimensional accuracy and favorable texture evolution. Notwithstanding, the pilgered tubes showed a kind of shear cracks similar to those obtained during low-cycle shear fatigue experiments. To confirm it, a novel low-cycle shear fatigue experiment was designed, in which the shear stress amplitude was obtained from a tracking point in the inner surface of the pilgered tube through finite element model (FEM). Additionally, a theoretical model was established based on the experimental results to predict fatigue life during the cold pilgering process. Through this model, the effects of Q value, side relief, and friction coefficient on the safety factor during cold pilgering were investigated. The results showed that with the increase of Q value, and the decrease of the difference between the friction coefficients of the inner and outer surfaces, the safety of cold pilgering tube could be improved by decreasing the tendency of shear cracks.
KeywordLow-cycle shear fatigue Cold pilgering Shear stress history Zircaloy tube FEM
Funding OrganizationNational Natural Science Foundation of China
DOI10.1007/s12289-019-01534-y
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51875547]
WOS Research AreaEngineering ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectEngineering, Manufacturing ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000505373900001
PublisherSPRINGER FRANCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136556
Collection中国科学院金属研究所
Corresponding AuthorSong, Hongwu
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Ce,Song, Hongwu,Deng, Siying,et al. Shear cracks of Zircaloy tube during cold pilgering: experimental investigation and numerical modeling[J]. INTERNATIONAL JOURNAL OF MATERIAL FORMING,2020:13.
APA Zheng, Ce,Song, Hongwu,Deng, Siying,&Zhang, Shihong.(2020).Shear cracks of Zircaloy tube during cold pilgering: experimental investigation and numerical modeling.INTERNATIONAL JOURNAL OF MATERIAL FORMING,13.
MLA Zheng, Ce,et al."Shear cracks of Zircaloy tube during cold pilgering: experimental investigation and numerical modeling".INTERNATIONAL JOURNAL OF MATERIAL FORMING (2020):13.
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