Fracture analysis of pipe sleeve on extrusion flare-less pipe joints for aircraft hydraulic pipe

Fengmei Xue, Fuguo Li, Jiang Li, Wenjun Yu, Jianfei Li

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

The forming process of aircraft hydraulic pipe joints is investigated through experiments and analyses to solve the cracking problem of pipe sleeve on extrusion flare-less pipe joints. It can be concluded that the internal cause of the fracture failure is connected with the content, shape and distribution of δ-ferrite in 0Cr12Mn5Ni4Mo3Al high strength stainless steel, and the external cause is associated with the bearing behavior in the extrusion-bulging process of pipe sleeve. The crack is formed in the criss-crossing section of δ-ferrite on the function of shear stress in the stress concentration position, which belongs to ductile deformed crack. It eventually induces the intergranular fracture of pipe sleeve along the long axis with the expanding of subsequent crack.

源语言英语
主期刊名Materials Processing Technology
1087-1090
页数4
DOI
出版状态已出版 - 2011
活动2011 International Conference on Advanced Engineering Materials and Technology, AEMT 2011 - Sanya, 中国
期限: 29 7月 201131 7月 2011

出版系列

姓名Advanced Materials Research
291-294
ISSN(印刷版)1022-6680

会议

会议2011 International Conference on Advanced Engineering Materials and Technology, AEMT 2011
国家/地区中国
Sanya
时期29/07/1131/07/11

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