Effect of different hole-making technology on fatigue properties of directionally solidified alloy ic10

Y. Lian, Z. Xu, Q. Gao, L. Liu, Z. Wen

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

The fatigue tests were carried out under two kinds of hole-making technology, forming EDM and high-speed EDM. The hole taper and fracture surface of the sample were compared and analyzed. The finite element model with hole taper was established and the influence of the hole making technology on fatigue life was analyzed. Three conclusions have been obtained:First, the inner surface of the hole of the formed EDM is relatively flat, the residual deposit formed during the processing is less. and thickness of the recast layer and the content of oxygen are also lower than the high-speed EDM. Second,The fracture surface of the formed EDM shows obvious crack source, while the high-speed EDM has no crack source, and the area of the crack propagation area of the high-speed EDM is obviously larger. Third,the high-speed electric spark machining has obvious taper, under the load condition, the stress at the large hole end is higher than that at the small hole end, and large strain and damage are generated at the same time, resulting in crack initiation at the end of the large hole.

源语言英语
主期刊名Advanced Materials and Engineering Materials VIII
编辑Peng Sheng Wei
出版商Trans Tech Publications Ltd
163-170
页数8
ISBN(印刷版)9783035714883
DOI
出版状态已出版 - 2019
活动8th International Conference on Advanced Materials and Engineering Materials, ICAMEM 2019 - Hong Kong, 香港
期限: 18 4月 201919 4月 2019

出版系列

姓名Key Engineering Materials
814 KEM
ISSN(印刷版)1013-9826
ISSN(电子版)1662-9795

会议

会议8th International Conference on Advanced Materials and Engineering Materials, ICAMEM 2019
国家/地区香港
Hong Kong
时期18/04/1919/04/19

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