Creep Life Prediction of Alloy 718 for Automotive Engine Materials

This study was carried out to investigate the creep life at the high temperature of the Alloy 718 for automotive engine components using the initial strain parameter method (ISPM). Creep tests have performed at elevated temperatures in the range of 550 °C to 700 °C in this work. We also carried out constant stress creep tests. The initial strains were measured during 1 minute after loading. Both the creep stress and rupture time depend on the initial strain. We calculated the creep life of Alloy 718 by using the creep life prediction equations obtained from the ISPM. Then, we compared the creep life predicted by the ISPM to the Larson-Miller parameter (LMP). The experimental rupture time and the calculated rupture time by using the ISPM agreed with a confidence level of 95 %. The creep life predicted by using the ISPM was in very good agreement with the creep life predicted using the LMP method.

• Record URL:
  • https://doi.org/10.1007/s12239-018-0103-3
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/12299138
• Supplemental Notes:
  • Copyright © 2018, The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg. The contents of this paper reflect the views of the authors and do not necessarily reflect the official views or policies of the Transportation Research Board or the National Academy of Sciences.
• Authors:
  • Kong, Yu Sik
  • Yu, Jiyoung
  • Park, Young Whan
• Publication Date: 2018-12

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 1055-1059
• Serial:
  • International Journal of Automotive Technology
  • Volume: 19
  • Issue Number: 6
  • Publisher: Korean Society of Automotive Engineers
  • ISSN: 1229-9138
  • EISSN: 1976-3832
  • Serial URL: http://link.springer.com/journal/12239

Subject/Index Terms

• TRT Terms: Automotive materials; Creep properties; Creep tests; Deformation curve; High temperature; Internal combustion engines; Nickel alloys; Performance tests
• Identifier Terms: Inconel 718
• Subject Areas: Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 01691272
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 25 2019 10:31AM