Repair of shot peening on fatigue properties of high-strength TC18 titanium alloy for aviation

Dongxing Du, Daoxin Liu, Dinggen Xiang, Baoli Meng, Xiaohua Zhang

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

In this paper, the machining texture and shot peening (SP) on the fatigue properties of a high-strength TC18 titanium alloy for aviation were studied. The surface texture, surface morphology, hardness distribution, and residual stress characteristics of fatigue specimens were analyzed by using scanning electron microscopy (SEM), micro-hardness tester, and X-ray diffraction residual stress analyzer. The results showed that the fatigue life of the axial texture processing was 27 % lower than that of the axial polishing specimens (BM) . But circumferential texture processing was 72 % lower than that of BM. It was attributed that the fatigue cracks was initiation easily by circumferential texture processing. Then, SP technology was induced to repair the fatigue life of the circumferential texture processing specimens. Compared with the BM specimens, the fatigue life of SP specimens increased approximately 12 times. That was attributed to the depth of compressive residual stress field induced by SP.

源语言英语
主期刊名Proceedings of the First Symposium on Aviation Maintenance and Management
出版商Springer Verlag
575-582
页数8
版本VOL. 2
ISBN(印刷版)9783642542329
DOI
出版状态已出版 - 2014
活动2013 1st Symposium on Aviation Maintenance and Management - Xi'an, 中国
期限: 25 11月 201328 11月 2013

出版系列

姓名Lecture Notes in Electrical Engineering
编号VOL. 2
297 LNEE
ISSN(印刷版)1876-1100
ISSN(电子版)1876-1119

会议

会议2013 1st Symposium on Aviation Maintenance and Management
国家/地区中国
Xi'an
时期25/11/1328/11/13

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