Effects of process control agent on the microstructure and mechanical properties of Ti-Sn-Nb alloy prepared by mechanical alloying

Nouri, Alireza, Li, Yuncang, Yamada, Yasuo, Hodgson, Peter D. and Wen, Cui'e 2008, Effects of process control agent on the microstructure and mechanical properties of Ti-Sn-Nb alloy prepared by mechanical alloying, in PM 2008 : Advances in powder metallurgy & particulate materials : Proceedings of the 2008 World Congress on Powder Metallurgy & Particulate Materials, Metal Powder Industries Federation, Princeton, N.J., pp. 222-233.

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Title Effects of process control agent on the microstructure and mechanical properties of Ti-Sn-Nb alloy prepared by mechanical alloying
Author(s) Nouri, Alireza
Li, Yuncang
Yamada, Yasuo
Hodgson, Peter D.
Wen, Cui'e
Conference name Powder Metallurgy & Particulate Materials. World Congress (2008 : Washingston, D.C.)
Conference location Washington DC, United States
Conference dates June 8-12 2008
Title of proceedings PM 2008 : Advances in powder metallurgy & particulate materials : Proceedings of the 2008 World Congress on Powder Metallurgy & Particulate Materials
Editor(s) Lawcock, Roger
Lawley, Alan
McGeehan, Partick J.
Publication date 2008
Conference series Powder Metallurgy and Particulate Materials World Congress
Start page 222
End page 233
Total pages 12
Publisher Metal Powder Industries Federation
Place of publication Princeton, N.J.
Summary In the present study, the influence of process control agent (PCA) on the characteristics of powder and bulk sintered Ti-16Sn-4Nb (wt. %) alloy prepared by mechanical alloying has been investigated. The elemental Ti, Sn and Nb powders were mechanically alloyed in a planetary ball mill for a short period of time using two types of PCA, namely stearic acid (SA) and ethylene bis-stearamide (EBS). The powder morphology, microstructural evolution of the bulk sintered alloy, phase formation and hardness of the alloy have been studied as a function of PCA. Results indicated that the addition of PCA leads to a delay in aIloy formation and introduces contaminations (mainly carbon and oxygen) into the material. The microstructural observation of the bulk alloy revealed a homogeneous distribution of fine Nb-rich colonies (ß-phase) within the a-Ti matrix for small amount of PCA. The hardness values of samples exhibited a significant increase with increasing amount of PCA, reaching a value of ~ 600 BV.
ISBN 9780979348891
0979348897
Language eng
Field of Research 091499 Resources Engineering and Extractive Metallurgy not elsewhere classified
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2008, Metal Powder Industries Federation
Persistent URL http://hdl.handle.net/10536/DRO/DU:30018077

Document type: Conference Paper
Collections: Centre for Material and Fibre Innovation
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