Phase Analysis Using Thermodynamics Modeling for Inconel 718 ITA/DCTA

Format:

Conference/Event

Author/Creator:

Guimaraes, Guimaraes, author.

Contributor:

Coelho, G.C.

Hirschmann, A. C. O.

Neto, C. Moura

Reis, D. A. P.

Sugahara, T.

Conference Name:

SAE Brasil 2010 Congress and Exhibit (2010-10-05 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

The use of superalloys is really meaningful because of its important mechanical properties in high temperature environment. We selected Inconel 718, which has over 50 wt% of nickel and chromium, niobium, molybdenum and titanium with significant weight percent between all the impurities atoms; to study its phase stability among a range of temperatures (from 500°C to approximately 1400°C). The thermodynamic modeling has a high importance to predict the behavior of alloys among equilibrium transition. The software named Thermo-Calc was used to calculate the microstructure of this system. The databases selected were: SSOL4 and TTNI6. Using this analysis it is possible to predict the phases presented, its compositions and amounts. And to confirm our theory, we compared with the results obtained experimentally after revealing its surface by MEV technique. Sustaining what we found, we can extend this analysis to any superalloy of interest, making it easier and faster

Notes:

Vendor supplied data

Publisher Number:

2010-36-0450

Access Restriction:

Restricted for use by site license