MC2 Single Crystal Superalloy

Alloy name: MC2 Single Crystal Superalloy
Diagram No.: 1072
Type of diagram: TTT
Chemical composition in weight %: 7.89% Cr, 5.08% Cr, 2.11% Mo, 7.99% W, 5.05% Al, 1.49% Ti, 5.96% Ta, balance is Ni
Alloy group: Nickel-based alloys
Note: TIT curve for the formation of mu phase in the MC2 alloy.
To determine the domain of occurence of the u phase in the MC2 alloy, fully heat-treated single crystal samples were held at temperatures between 750 and 1150C for various times. The time temperature transformation (ITT) curve in Figure shows that the formation kinetic of the mu phase is maximum in the temperature range 1000-1100C and that mu phase was never observed after aging at 750 and 1150C. At 105O C, the volume fraction of mu phase attains a maximum value of 0.5% after an exposure of 200 hours and does not increase for longer periods of time. On the other hand, the volume fraction of mu phase measured in a sample exposed during 200 hours at 105O C under a stress of 80 MPa is only 0.1% which shows that the stress may slow down the precipitation of mu phase in the MC2 alloy. Furthermore, the amount of mu phase observed in the specimen stress-ruptured after 896 hours at 105O C is about 0.5%, i.e. similar to that measured after an exposure of 200 hours at the same temperature without stress.
Reference: Not shown in this demo version.

Transformation Diagram

Price: 30.00 US $
Buy Online Transformation Diagram

Other Steel Data links
Carbides in Steel
Etchants Database
Hardenability Diagrams of Steels
Macro Defects in Steel
Non-Metallic Inclusions in Steel
Tempering Diagrams of Steels
CCT and TTT Diagram Calculating Service
Transformation Diagrams of Non-Ferrous Alloys

Disclaimer: The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

Copyright © 2019 by Steel Data. All Rights Reserved.