High-temperature fatigue crack growth behavior of 17-4 PH stainless steels

Kuei Chang Hsu, Chih Kuang Lin

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

The fatigue crack growth (FCG) behavior was investigated for 17-4 PH stainless steels in three heat-treated conditions, i.e., unaged (Condition A), peak-aged (Condition H900), and overaged (Condition H1150), at temperatures ranging from 300 to 500 °C. The high-temperature fatigue crack growth rates (FCGRs) of Condition H1150 were increased with an increase in temperature. However, for Conditions A and H900 tested at 500 °C, the FCGRs were lower than the lower temperature ones. At 300 and 400 °C, H1150 and H900 generally showed the lowest and highest FCGRs, respectively, with Condition A demonstrating behavior between the two. At 500 °C, the FCGR curves for all material conditions were merged together. The anomalous FCG behavior of 17-4 PH stainless steels at 500 °C was mainly caused by an in-situ precipitate-coarsening effect during test.

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主出版物標題11th International Conference on Fracture 2005, ICF11
頁面2581-2586
頁數6
出版狀態已出版 - 2005
事件11th International Conference on Fracture 2005, ICF11 - Turin, Italy
持續時間: 20 3月 200525 3月 2005

出版系列

名字11th International Conference on Fracture 2005, ICF11
4

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???event.eventtypes.event.conference???11th International Conference on Fracture 2005, ICF11
國家/地區Italy
城市Turin
期間20/03/0525/03/05

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