Paper Title:

Microstructure and Mechanical Properties of Cast Ti25Nb3Mo3Zr2Sn Alloy

Periodical Advanced Materials Research (Volumes 97 - 101)
Main Theme Manufacturing Science and Engineering I
Edited by Zhengyi Jiang and Chunliang Zhang
Pages 488-491
DOI 10.4028/www.scientific.net/AMR.97-101.488
Citation Gui Wang et al., 2010, Advanced Materials Research, 97-101, 488
Online since March, 2010
Authors Gui Wang, Damon Kent, Mohanchand Paladugu, Zhen Tao Yu, Matthew S. Dargusch
Keywords Casting, Mechanical Property, Precipitation, β Titanium Alloy
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Abstract

The microstructure and mechanical properties of a cast near β type titanium alloy, Ti-25Nb-3Zr-3Mo-2Sn, have been investigated in this paper. In the as cast condition, the alloy possesses coarse, equiaxed β grains and Transmission Electron Microscopy(TEM) observations showed the ω phase is also present in this condition. The alloy in the as cast condition has low strength and is highly ductile. Direct ageing at 450°C for 4 hours leads to the formation of a large number of fine scale α phase precipitates. The alloy in the aged condition is less ductile but exhibits significantly enhanced strength.