High temperature fatigue behaviour of a directionally solidified cobalt-base superalloy

W. H. Jiang; X. D. Yao; H. R. Guan; Z. Q. Hu

High temperature fatigue behaviour of a directionally solidified cobalt-base superalloy

W. H. Jiang
, X. D. Yao
, H. R. Guan
, Z. Q. Hu

能源与动力工程学院

Chinese Academy of Sciences

科研成果: 期刊稿件 › 文章 › 同行评审

4 引用（Scopus）

摘要

The high temperature high cycle fatigue behaviour of a directionally solidified Co-base superalloy was investigated. The alloy has superior fatigue resistance at 900 °C and its fatigue strength is up to 295 MPa. Its σ-N_f curve is characterized by three distinct zones. The stronger dependence of N_f on σ in the high and low stress zones results from multiple fatigue crack initiation sites produced by high stress and oxidation effect in a prolonged exposure, respectively.

源语言	英语
页（从-至）	111-115
页数	5
期刊	Acta Metallurgica Sinica (English Letters)
卷	11
期	2
出版状态	已出版 - 4月 1998

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title = "High temperature fatigue behaviour of a directionally solidified cobalt-base superalloy",

abstract = "The high temperature high cycle fatigue behaviour of a directionally solidified Co-base superalloy was investigated. The alloy has superior fatigue resistance at 900 °C and its fatigue strength is up to 295 MPa. Its σ-Nf curve is characterized by three distinct zones. The stronger dependence of Nf on σ in the high and low stress zones results from multiple fatigue crack initiation sites produced by high stress and oxidation effect in a prolonged exposure, respectively.",

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AU - Jiang, W. H.

AU - Yao, X. D.

AU - Guan, H. R.

AU - Hu, Z. Q.

PY - 1998/4

Y1 - 1998/4

N2 - The high temperature high cycle fatigue behaviour of a directionally solidified Co-base superalloy was investigated. The alloy has superior fatigue resistance at 900 °C and its fatigue strength is up to 295 MPa. Its σ-Nf curve is characterized by three distinct zones. The stronger dependence of Nf on σ in the high and low stress zones results from multiple fatigue crack initiation sites produced by high stress and oxidation effect in a prolonged exposure, respectively.

AB - The high temperature high cycle fatigue behaviour of a directionally solidified Co-base superalloy was investigated. The alloy has superior fatigue resistance at 900 °C and its fatigue strength is up to 295 MPa. Its σ-Nf curve is characterized by three distinct zones. The stronger dependence of Nf on σ in the high and low stress zones results from multiple fatigue crack initiation sites produced by high stress and oxidation effect in a prolonged exposure, respectively.

UR - https://www.scopus.com/pages/publications/0032034188

M3 - 文章

AN - SCOPUS:0032034188

SN - 1006-7191

VL - 11

SP - 111

EP - 115

JO - Acta Metallurgica Sinica (English Letters)

JF - Acta Metallurgica Sinica (English Letters)

IS - 2

ER -

High temperature fatigue behaviour of a directionally solidified cobalt-base superalloy

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