Accession Number:

ADA433602

Title:

Fabrication and Investigation of Large Billets of Ti-6Al-4V Alloy with Ultrafine-Grained Structure Using SPD-Processing

Descriptive Note:

Final rept. 20 Sep 2001-28 Feb 2003

Corporate Author:

UFA STATE AVIATION TECHNICAL UNIV (RUSSIA) INST OF PHYSICS OF ADVANCED MATERIALS

Personal Author(s):

Report Date:

2003-03-01

Pagination or Media Count:

75.0

Abstract:

This report results from a contract tasking Institute of Physics of Advanced Materials, Ufa State Aviation Technical University as follows The present project aims to produce an ultrafine-grained UFG structure for the first time in large Ti-6Al-4V billets, using severe plastic deformation SPD processing through equal-channel angular ECA pressing. Special attention in this project will be devoted to the formation of a homogeneous UFG structure. The investigations will include modelling of plastic flow of the material during ECA processing, determination of factors influencing the localization of plastic strain and formation of an UFG structure, characterization of microstructure and phase composition of the alloy during ECA pressing, and the study of mechanical properties of the ECA-processed Ti-6-4 alloy.

Subject Categories:

  • Properties of Metals and Alloys
  • Miscellaneous Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE