Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Numerical Simulation of Cu-Cu Interface Thermal Resistance by Utilizing Laser Photothermal Method
p.195
Seismic Control Research of Longitudinal Floating Bridge Based on MR Damper
p.201
Model Test Research of the Influences of Rock-Fall Impaction on Accelerations of the Cut-and-Cover Tunnel Structure
p.206
Structure Design and Finite Element Analysis of Airborne Equipment Integrated Mounting Shelf
p.212
Microstructure and Mechanical Properties of a Rapid Directionally Solidified Ti47Al Alloy
p.217
An Impact Analysis of Turbine Guide Bearing Stiffness on Rotating Parts’ Transverse Vibration Characteristics
p.222
Dynamic Responses of a Simply Supported Bridge to Moving Vehicle Loads
p.231
Research on Technological Parameters of Laser Cladding
p.236
Study on Flow-Induced Vibration Characteristics of Hydraulic Hoist of Large-Span Upwelling Radial Steel Gate
p.241

Microstructure and Mechanical Properties of a Rapid Directionally Solidified Ti47Al Alloy

Article Preview

Abstract:

The ingot of Ti47Al alloy was prepared by a newly developed rapid directional solidification, the microstructure and compressive properties of the ingot was observed and tested. The results show that the macrostructure consisted mainly of coarse columnar grains parallel to the axial direction, with the size of 0.5mm wide and 10mm in length. The direction of lamellar is almost perpendicular to the growth direction in the longitudinal section and no dendritic core is found. The average ultimate compressive strength of the specimens with grain growth parallel/perpendicular to the compressive direction is 1233.3 and 861.7 MPa respectively. The fracture mode for specimens with grain growth parallel to the compressive direction exhibits predominantly translamellar fracture, however, that for specimens with grain growth perpendicular to the compressive direction exhibits predominantly delamenation or interlamellar fracture.

You might also be interested in these eBooks
Materials and Computational Mechanics View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 117-119)

Pages:

217-221

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.117-119.217

Citation:

Cite this paper

Online since:

October 2011

Authors:

Rui Run Chen, Hong Sheng Ding, Jing Jie Guo, Yan Qing Su, Heng Zhi Fu

Keywords:

Directional Solidification, Microstructure, TiAl Alloys

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] X. H. Wu: Intermetallics Vo1. 14 (2006), p.1114.

Google Scholar

[2] J. Lapin, L. Ondru s and M. Nazmy: Intermetallics Vo1. 10 (2002), p.1019

Google Scholar

[3] M. Perez-Bravo, I. Madariaqa, K. Ostolaza and M. Tello: Scripta Mater. Vol.53 (2005), p.1141.

Google Scholar

[4] H. Saari, J. Beddoes, D.Y. Seo, L. Zhao: Intermetallics Vol. 13 (2005), p.937

Google Scholar

[5] Y.H. Wang, J.P. Lin, Y.H. He, Y.L. Wang, G.L. Chen: Mat. Sci. and Eng. A Vol.471 (2007) , p.82

Google Scholar

[6] T. Noda: Intermetallics, Vol. 6 (1998), p.709.

Google Scholar

[7] H.N. Lee, D.R. Johnson, H. Inui, M.H. Oh, D.M. Wee, M. Yamaguchi: Acta Mater. Vol. 48 (2000), p.3221.

Google Scholar

[8] I.S. Jung, H.S. Jang, M.H. Oh, J.H. Lee, D.M. Wee: Mat. Sci. and Eng. Vol. A329-331 (2002), p.13–18

Google Scholar

[9] Fuchs, G. E: Mat. Sci. and Eng. A. Vol. 192-193(1995), p.707.

Google Scholar

[10] M.C. Kim, D.M. Wee, M.H. Oh, J.H. Lee, H. Inui, M. Yamaguchi: Mater. Sci. Eng. A. Vol, 239-240 (1997), p.570.

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved