COLLABORATIVE RESEARCH AND DEVELOPMENT (CR&D) Delivery Order 0043: Deformation and Texture Development During Hot Working of Titanium

reportActive / Technical Report | Accession Number: ADA516499 | Open PDF

Abstract:

This research in support of the Air Force Research Laboratory Materials and Manufacturing Directorate was conducted at Wright-Patterson AFB, Ohio from 3 November 2005 through 31 January 2008. This task developed constitutive models for alphabeta titanium alloys with colony-alpha microstructure and validated texture prediction models for plate rolling. A method for separating the textures of primary alpha alphasub p and secondary alpha alphasub s in alphabeta titanium alloys with a duplex microstructure was developed. Utilizing electron backscatter diffraction EBSD and energy-dispersive spectroscopy EDS, the approach relies on the non-uniform partitioning of alloying elements between primary alpha and regions containing secondary-alpha lamellae and residual beta matrix phase. The method was evaluated using samples of Ti-6Al-4V for which vanadium partitions strongly to secondary alpha beta regions. The technique thus provides a useful tool for quantifying the evolution of deformation texture in the primary alpha and transformation texture in secondary alpha formed via decomposition of the beta matrix following hot working or final heat treatment.

Author(s):
Salem, A. A. ; Glavicic, M. G. ; Semiatin, S. L.
Author Organization(s):
UNIVERSAL TECHNOLOGY CORP DAYTON OH
Descriptive Note:
Final rept. 3 Nov 2005-31 Jan 2008
Supplementary Note:
Performed in cooperation with UES Inc., Dayton, OH; and the Air Force Research Laboratory (AFRL), Wright-Patterson AFB, OH. The original document contains color images. All DTIC reproductions will be in black and white.
Pagination:
0060

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
S-531-043, AFRL-RX-WP-TM-2010-4085
Contract/Grant Number(s):
F33615-03-D-5801-0043
Task Number(s):
L0
Project Number(s):
4349
Monitor Series:
TM-2010-4085, AFRL-RX-WP
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.2.3_Share Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_6_Net Centric; JCA_5.3_Planning; JCA_6.1_Information Transport; JCA_1.2.5_Lessons Learned; JCA_5.6.3_Assess Achievement of Objectives; JCA_5.6_Monitor; JCA_8_Building Partnerships
Communities of Interest:
Air Platforms
Descriptor(s):
*MICROSTRUCTURE, *HOT WORKING, *TITANIUM ALLOYS, *TEXTURE, *DEFORMATION, *ALUMINUM ALLOYS, *VANADIUM ALLOYS, OHIO, MATHEMATICAL MODELS, BACKSCATTERING, ALLOYS, REGIONS, HEAT TREATMENT, MATHEMATICAL PREDICTION, EVOLUTION(GENERAL), TITANIUM, ELECTRON DIFFRACTION, DISPERSIONS, SECONDARY, SPECTROSCOPY, VALIDATION, DECOMPOSITION, TRANSFORMATIONS, ENERGY
Field(s)/Group(s):
Properties of Metals and Alloys, Fabrication Metallurgy, Manufacturing and Industrial Engineering and Control of Production Systems, Atomic and Molecular Physics and Spectroscopy, Mechanics
Keyword(s):
EBSD(ELECTRON BACKSCATTER DIFFRACTION), EDS(ENERGY DISPERSIVE SPECTROSCOPY), *TI6AL4V TITANIUM ALLOY, HOT ROLLING, PRIMARY ALPHA, SECONDARY ALPHA, PE61202F, WUAFRL4349L0VT
Report Date:
2008 Apr 01
Creation Date:
2010 Apr 07