Development of a Castable, Free-Machining Titanium Alloy

Judith Laukart; Carsten Siemers; Joachim Rösler

doi:10.4028/www.scientific.net/MSF.690.3

Paper Titles

Preface

Development of a Castable, Free-Machining Titanium Alloy
p.3

Evaluating the Growth Restriction Factor in Stable and Metastable Al-Si-Ti Alloy Solidification
p.7

Prediction of the Yield Strength during a Heat Treatment of Deformed Al-Mg-Si Alloys
p.11

Thermodynamic and Elastic Properties of the Phases Appearing in the Lightweight La-Mg Alloys
p.15

Properties of Magnesium Strips Produced by Twin-Roll-Casting and Hot Rolling
p.21

The Application of Positron Emission Particle Tracking (PEPT) to Study Inclusions in the Casting Process
p.25

The Aging Response of a Metastable β Ti Alloy, BTi-6554
p.29

The Effect of HIPping on the Microstructure and Tensile Properties of Cast BTi-6554 Alloy
p.33

HomeMaterials Science ForumMaterials Science Forum Vol. 690Development of a Castable, Free-Machining Titanium...

Development of a Castable, Free-Machining Titanium Alloy

Abstract:

The addition of La to cp-Ti or Ti alloys, like Ti 6Al 4V, leads to the formation of short-breaking chips. Free-machinability is given by elementary La particles in the Ti matrix. The new alloy Ti 6Al 2Fe 1Mo 0.9La 0.5Cu was developed out of the Ti 6Al 4V alloy and exhibits free-machinability. However, this alloy offers poor castability due to the formation of hot cracks. Thermocalc® simulations discovered that Fe and Cu are broadening the solidification interval of the new alloy, which favors the formation of hot cracks. Therefore, the suitability of other β-stabilizing, like Mn and Cr alloying elements was investigated.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 690)

Pages:

3-6

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.690.3

Citation:

Cite this paper

Online since:

June 2011

Authors:

Judith Laukart, Carsten Siemers, Joachim Rösler

Keywords:

Free-Machining Titanium Alloy, Rare-Earth Metal Lanthanum, Thermocalc Simulation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] E.O. Ezugwu and Z.M. Wang: J. of Mat. Proc. Vol. 68 (1997), pp.262-274

Google Scholar

[2] M. Bäker: J. of Mat. Proc. Technol. Vol. 167 (2005), pp.1-13

Google Scholar

[3] M. Cotterell and G. Byrne: J. of Manufact. Sc. and Technol. Vol. 1 (2008) pp.81-85

Google Scholar

[4] C. Siemers et. al. in: Proc. of the 11th World Conference on Ti, edited by M. Niinomi, S. Akiyama, M. Hagiwara, M. Ikeda and K. Maruyama, Kyoto, Japan (2007), p.709

Google Scholar

[5] J. Campbell: Castings, Butterworth Heinemann Oxford, 1st edition (1991)

Google Scholar

[6] G.W.C. Kaye and T.H. Laby: Tables of physical and chemical constants, Longman, 16th edition (1995)

Google Scholar

[7] T.B. Massalski (ed.): Binary alloy phase diagrams, ASM International, 1st edition (1986)

Google Scholar

[8] S.J. De Souza, C. Quesne, C. Servant and C. Severac: Metallography Vol.18 (1985), pp.353-365

DOI: 10.1016/0026-0800(85)90004-7

Google Scholar