Creep life prediction of alloy 718 for automotive engine materials
- Title
- Creep life prediction of alloy 718 for automotive engine materials
- Author
- 유지영
- Keywords
- Initial Strain Parameter Method (ISPM); Elevated temperatures; Ni-based Alloy 718; Creep life prediction; Larson-Miller Parameter (LMP)
- Issue Date
- 2018-10
- Publisher
- KOREAN SOC AUTOMOTIVE ENGINEERS-KSAE
- Citation
- INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, v. 19, no. 6, page. 1055-1059
- Abstract
- 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 oC to 700 oC 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.
- URI
- https://link.springer.com/article/10.1007%2Fs12239-018-0103-3https://repository.hanyang.ac.kr/handle/20.500.11754/120459
- ISSN
- 1229-9138; 1976-3832
- DOI
- 10.1007/s12239-018-0103-3
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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