Study on Fatigue Life of Straight Hole Plate of Directionally Solidified Alloy IC10

Ye Da Lian; Zhuang Zhuang Xu; Qian Yin; Lu Liu; Zhi Xun Wen

doi:10.4028/www.scientific.net/KEM.814.248

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 814Study on Fatigue Life of Straight Hole Plate of...

Study on Fatigue Life of Straight Hole Plate of Directionally Solidified Alloy IC10

Abstract:

Low-cycle fatigue test of three kinds of flat plates with different hole diameters (0.5 mm, 0.6 mm, 0.7 mm) and film-cooling hole arrangement (5 holes, 9 holes and 14 holes) were carried out. The variation of fatigue life with hole diameter and arrangement was analyzed. A modified critical distance method based on crystal plasticity theory was adopted to predict fatigue life under different hole diameters. The experimental results are as follows: the uneven distribution of stress was caused by the different arrangement of holes, which seriously affected the fatigue performance of the structure; the fatigue life decreased with the increase of the aperture. The critical distance method with the stress concentration factor around the aperture can accurately predict the fatigue life.

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Advanced Materials and Engineering Materials VIII

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Periodical:

Key Engineering Materials (Volume 814)

Pages:

248-255

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.814.248

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Online since:

July 2019

Authors:

Ye Da Lian*, Zhuang Zhuang Xu, Qian Yin, Lu Liu, Zhi Xun Wen

Keywords:

Critical Distance Method, Different Hole Diameters, Film-Cooling Hole Arrangement, Low-Cycle Fatigue Test

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