Rai, R K and Sahu, J K and Jena, P S M and Das, Swapan K and Paulose, N and Fernando, C D (2017) High temperature tensile deformation of a directionally solidified nickel base superalloy: Role of micro constituents. Materials Science and Engineering A, 705 (IF-3.094). pp. 189-195.
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Abstract
High temperature tensile deformation behaviour of directionally solidified nickel base superalloy CM 247 DS
was studied by conducting tensile tests in the temperature range 25–955 °C and extensive electron microscopic
examinations to understand the influence of different phases on tensile behaviour. Micro-constituents, especially carbides and γ−γ′ eutectics influence the deformation and fracture behaviour of alloy CM 247 DS. Cracking of carbide precipitates was extensively observed during tensile deformation at 25 °C. However, tendency of carbide cracking decreased and more carbide-matrix interface de-bonding were observed with increase in test temperature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Carbides, Tensile, γ′ precipitate, γ-γ′ eutectic |
| Subjects: | Metallurgy > Alloys and Compounds > Nickel Alloys Materials Science > Materials Charcterization Metallurgy > Structural Properties |
| Divisions: | Material Science and Technology |
| Depositing User: | Dr. J K Sahu |
| Date Deposited: | 31 Oct 2017 07:09 |
| Last Modified: | 31 Oct 2017 07:10 |
| URI: | http://eprints.nmlindia.org/id/eprint/7660 |
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