Effect of cold expansion on room-temperature low cycle fatigue life of GH4169 superalloy with hole structure

Effect of cold expansion on room-temperature low cycle fatigue life of GH4169 superalloy with hole structure

The fatigue life of GH4169 superalloy plate with central hole was tested at 663 MPa/20 ℃ before and after cold expansion（CE）. The fatigue fractures, the evolution of residual stress fields and surface morphology were respectively analyzed by scanning electron microscope, X-ray diffraction residual s...

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Bibliographic Details
Main Authors: XU Chunling, WANG Xin, SONG Yinggang, WANG Qiang, LUO Xuekun, TANG Zhihui
Format: Article
Language:zho
Published: Journal of Aeronautical Materials 2020-02-01
Series:Journal of Aeronautical Materials
Subjects:
cold expansion
gh4169 superalloy
room-temperature fatigue life
residual stress
Online Access:http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2019.000112

Internet

http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2019.000112

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