High-temperature fatigue crack growth behavior of 17-4 PH stainless steels
โ Scribed by Kuei-Chang Hsu; Chih-Kuang Lin
- Book ID
- 107440487
- Publisher
- The Minerals, Metals & Materials Society
- Year
- 2004
- Tongue
- English
- Weight
- 833 KB
- Volume
- 35
- Category
- Article
- ISSN
- 1073-5623
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The high-temperature fatigue crack growth (FCG) behavior was investigated for a precipitation-hardening stainless steel, 17-4 PH, in three differently aged conditions. FCG tests were conducted at 400 and 500 ยฐC under various load ratios (R-ratios) ranging from R = 0.1 to 0.7. Results indicated the f
A~~act-Elevate-tem~rature fatigue crack growth behavior was investigated on a rotor steel. Increasing the tem~rature increased the rates of crack propagation. The activation energy for high-temperature crack growth was found to be comparable to that for oxide formation. A repeated process of crack-t