Rafting of Single Crystal Superalloy by High Thermal Stress
Rafting of the nickel-base single crystal superalloy CMSX-2 was investigated under the condition of high thermal stress using a newly constructed experimental equipment. The test piece with the diameter of 25 mm was tested at the maximum material temperature of 1 000 degree Celsius for 80 hours. The...
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Published in | Transactions of the Japan Society of Mechanical Engineers Series A Vol. 73; no. 728; pp. 475 - 481 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Japanese |
Published |
The Japan Society of Mechanical Engineers
2007
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Subjects | |
Online Access | Get full text |
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Summary: | Rafting of the nickel-base single crystal superalloy CMSX-2 was investigated under the condition of high thermal stress using a newly constructed experimental equipment. The test piece with the diameter of 25 mm was tested at the maximum material temperature of 1 000 degree Celsius for 80 hours. The results showed that the raft structure occurred only under the influence of thermal stress. The raft structure developed parallel to the direction of the compressive thermal stress because of negative lattice misfit. The thickness of gamma phase and gamma prime phase in rafting increase with the increase in the temperature and the thermal stress. |
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ISSN: | 0387-5008 1884-8338 |
DOI: | 10.1299/kikaia.73.475 |