TIMETAL-18 Alloy

Alloy name: TIMETAL-18
Diagram No.: 873
Type of diagram: TTT
Chemical composition in weight %: 5.5% Al, 5% V, 5% Mo, 2.4% Cr, 0.75% Fe, 0.15% O, balance is Ti
Alloy group: Titanium-based alloys
Note: Time-Temperature-Transformation (TTT) diagram for Ti-18 alloy.
The first TTT diagram for the Ti-18 was obtained using these isothermal resistivity measurements performed on water quenched samples after quench and during heating. We reported the progress of the a precipitation reaction as a function of time, obtaining 3 values of progress at 10%, 50% and 95% respectively, at each temperature. For overlapping domains, the raw resistometric curves have been deconvoluted carefully, assuming superposition of different contributions related to each mechanism. This diagram illustrates two different mechanisms, each one characterized by a C-curve associated to different precipitation's kinetics according the temperature. The first nose, a high temperature nose near 700C, is associated with the formation of Alpha(GB)+Alpha(WGB) and the second nose close to 600C corresponds to the formation of Alpha(WI).
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.