LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOY
The total strain-controlled low cycle fatigue（ LCF） behaviors of a directionally solidified（ DS） superalloy DZ406 at 950℃ and 1000℃ for R = 0. 05 were investigated. The results of LCF tests indicated that mean stress relaxation occurred under asymmetric straining. The rate of mean stress relaxation...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2017-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.02.012 |
| _version_ | 1797767858038505472 |
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| author | ZHANG ShiChao LI Li HOU XueQin |
| author_facet | ZHANG ShiChao LI Li HOU XueQin |
| author_sort | ZHANG ShiChao |
| collection | DOAJ |
| description | The total strain-controlled low cycle fatigue（ LCF） behaviors of a directionally solidified（ DS） superalloy DZ406 at 950℃ and 1000℃ for R = 0. 05 were investigated. The results of LCF tests indicated that mean stress relaxation occurred under asymmetric straining. The rate of mean stress relaxation increased with the increasing of strain amplitude. All the LCF data obtain under various ratios were well correlated by a modified SWT approach for lifetime prediction,the all data fell into the factor of 3 scatter band. With the increasing of strain amplitude it appeared muti-fatigue crack initiations. |
| first_indexed | 2024-03-12T20:46:00Z |
| format | Article |
| id | doaj.art-5293ac40aff8480ba51c79d06119b0cb |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:46:00Z |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-5293ac40aff8480ba51c79d06119b0cb2023-08-01T07:44:04ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692017-01-013931131530597950LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOYZHANG ShiChaoLI LiHOU XueQinThe total strain-controlled low cycle fatigue（ LCF） behaviors of a directionally solidified（ DS） superalloy DZ406 at 950℃ and 1000℃ for R = 0. 05 were investigated. The results of LCF tests indicated that mean stress relaxation occurred under asymmetric straining. The rate of mean stress relaxation increased with the increasing of strain amplitude. All the LCF data obtain under various ratios were well correlated by a modified SWT approach for lifetime prediction,the all data fell into the factor of 3 scatter band. With the increasing of strain amplitude it appeared muti-fatigue crack initiations.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.02.012DS superalloy;Low cycle fatigue;Strain ratio;Mean stress relaxation |
| spellingShingle | ZHANG ShiChao LI Li HOU XueQin LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOY Jixie qiangdu DS superalloy;Low cycle fatigue;Strain ratio;Mean stress relaxation |
| title | LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOY |
| title_full | LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOY |
| title_fullStr | LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOY |
| title_full_unstemmed | LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOY |
| title_short | LOW-CYCLE FATIGUE OF THE SECOND GENERATION DIRECTIONALLY SOLIDIFIED SUPERALLOY |
| title_sort | low cycle fatigue of the second generation directionally solidified superalloy |
| topic | DS superalloy;Low cycle fatigue;Strain ratio;Mean stress relaxation |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.02.012 |
| work_keys_str_mv | AT zhangshichao lowcyclefatigueofthesecondgenerationdirectionallysolidifiedsuperalloy AT lili lowcyclefatigueofthesecondgenerationdirectionallysolidifiedsuperalloy AT houxueqin lowcyclefatigueofthesecondgenerationdirectionallysolidifiedsuperalloy |