Predicting long-term creep-rupture property of Inconel 740 and 740H

Autor:	H. F. Ying, Xin Bao Zhao, J. T. Lu, Zhen Yang, Y. Yuan, Ying Ying Dang, Yue Feng Gu
Rok vydání:	2016
Předmět:	010302 applied physics Materials science Mechanical Engineering Metallurgy Metals and Alloys 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Term (time) Creep Mechanics of Materials Consistency (statistics) Life assessment 0103 physical sciences Materials Chemistry Ceramics and Composites Composite material 0210 nano-technology Inconel
Zdroj:	Materials at High Temperatures. 33:1-5
ISSN:	1878-6413 0960-3409
DOI:	10.1179/1878641315y.0000000010
Popis:	The prediction of long-term creep-rupture strength values for Inconel 740 and 740H is made at temperatures ranging from 650°C to 850°C by using Larson–Miller (LM) and Manson–Haferd (MH) methodologies. Then, the predicted creep-rupture strength values are compared with the ones reported by Wilshire–Scharning (WS) model, a new approach for life assessment. The results show that the LM method is easy to cause either underestimation or overestimation of long-term properties depending on the selected data. Compared with the LM and WS methods, predictions produced by MH method have a relatively good consistency with the experimental data over 30 000 h, and the 105 hours creep-rupture strength extrapolated from rupture life of 5000 h or more than 30 000 h are almost same. This suggests that the MH method is a better method for predicting the long-term creep-rupture strength of Inconel 740 and 740H alloys.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d6f70199c25c0de1d4982951b7a7e1ad https://doi.org/10.1179/1878641315y.0000000010 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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