Published 1995 | Version v1
Book Metadata-only

High temperature phase stability of Ti-(45.5-48)Al-2Nb-2Cr

Creators

  • 1. Clemson Univ., SC (United States)
  • 2. Concurrent Technologies Corp., Johnstown, PA (United States)
  • 3. UES, Inc., Dayton, OH (United States)
  • 4. GE Aircraft Engines, Cincinnati, OH (United States)

Description

The high temperature phase stability of Ti-45.5Al-2Nb-2Cr (cast+HIPed and forged+heat treated) and Ti-48Al-2Nb-2Cr (cast and cast+HIPed) has been determined utilizing calorimetric differential thermal analysis (CDTA) and in-situ high temperature x-ray diffraction (HTXRD). It is observed that both alloys, independent of processing condition, were three phase (α2 + γ + β) at room temperature, with the β phase volume fraction increasing with increase in Al content. CDTA indicated that four reversible reactions occur during heating/cooling of Ti-45.5Al-2Nb-2Cr while only three reversible reactions were observed in Ti-48Al-2Nb-2Cr. The transformation paths occurring on heating/cooling of these alloys were suggested on the basis of CDTA and HTXRD results

Additional details

Publishing Information

Publisher
Minerals, Metals and Materials Society.
Imprint Place
Warrendale, PA (United States)
ISBN
0-87339-304-X
Imprint Title
Gamma titanium aluminides
Imprint Pagination
1023 p.
Journal Page Range
p. 203-210.

Conference

Title
Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS).
Dates
12-16 Feb 1995.
Place
Las Vegas, NV (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
27050301
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ALUMINIUM ALLOYS; CALORIMETRY; CASTING; CHROMIUM ALLOYS; DIFFERENTIAL THERMAL ANALYSIS; EXPERIMENTAL DATA; FORGING; HEAT TREATMENTS; HOT PRESSING; INTERMETALLIC COMPOUNDS; NIOBIUM ALLOYS; OPTICAL MICROSCOPY; PHASE STUDIES; PHASE TRANSFORMATIONS; SAMPLE PREPARATION; TITANIUM ALLOYS; X-RAY DIFFRACTION
Descriptors DEC
ALLOYS; COHERENT SCATTERING; DATA; DIFFRACTION; FABRICATION; INFORMATION; MATERIALS WORKING; MICROSCOPY; NUMERICAL DATA; PRESSING; SCATTERING; THERMAL ANALYSIS; TRANSITION ELEMENT ALLOYS

Optional Information

Secondary number(s)
CONF-950201--.