Paper Titles
Superplastic Bulging Capability of Ti-6Al-4V Butt-Welded Plate by High Energy Beam Welding
p.411
Effect of Hydrogenation on the Microstructure during the Isothermal Compression of Ti-5.6Al-4.8Sn-2.0Zr-1.0Mo Alloy
p.417
Influence of Deformation Heat Treatment on the Ultra-Fine Structure of Austenitic Stainless Steel
p.421
Superplastic Forming and Thickness Distribution of Ti6Al4V Alloy Denture Base
p.427
Superplastic Behavior and Microstructural Evolution of GH4169
p.433
Superplastic Properties and Superplastic Forming/Diffusion Bonding of γ-TiAl+α2-Ti3Al Sheet Materials
p.441
Superplastic Properties of γ+α2 Titanium Aluminide Alloy Ti-43Al-(Nb,Mo,B) in Cast + Post-Solidification Heat Treated Condition
p.447
Heat Treatment of Ti2AlNb Intermetallic and its Superplastic Properties
p.453
Investigation of Compression Deformation Behavior and Microstructure Evolution of NiAl-Cr (Mo)-Hf Alloy at Elevated Temperature
p.457

Superplastic Behavior and Microstructural Evolution of GH4169

Article Preview

Abstract:

Tensile testing was performed on fine-grained GH4169 superalloy sheet at elevated temperatures (920°C~980°C) and at different initial strain rates (10-4~10-2s-1). The maximum elongation obtained was 280%. By TEM, active dislocation movement was observed and compared at different strain level and strain rate. Dynamic recovery and recrystallization was also found during superplastic deformation that played an important role of softening. At last the superplastic deformation mechanism of GH4169 alloy was discussed.

You might also be interested in these eBooks
Superplasticity in Advanced Materials - ICSAM 2006 View Preview

Info:

Periodical:

Materials Science Forum (Volumes 551-552)

Pages:

433-438

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.551-552.433

Citation:

Cite this paper

Online since:

July 2007

Authors:

H.Y. Xu, Zhi Qiang Li, He Ping Guo

Keywords:

Deformation Mechanism, Dislocation Movement, Dynamic Recovery, Dynamic Recrystallization (DRX), GH4169

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] L. Ceschini, G. P. Cammarota, G. L. Gargneni, F. P. ersiani, et al: Materials Science Forum Vols. 170-172(1994), p.351.

Google Scholar

[2] J.M. Zhang, L.Z. Ma, J.Y. Zhuang, et al: ACTA METALLYTGICA SINICA (English Letters) Vol. 9 No6 (1996), p.473.

Google Scholar

[3] Liu Run-guang, Jiang Hao-min, Han Xue: Superplasticity of Inconel 718 Alloy, Transactions of Metal Heat Treatment (China) Vol. 1 9 No. 2 (1 9 9 8), p.16.

Google Scholar

[4] Hongjun Lu, Xinchao Jia, Kaifeng Zhang, Caogen Yao: Materials Science and Engineering A326 (2002), p.382.

Google Scholar

[5] Y. Huang, P.L. Blackwell: Materials Science and Technology Vol. 19(2003), p.461.

Google Scholar

[6] M.S. Yeh, C.W. Tsau, T.H. Chuang: Journal of Materials Enginerring and Performance Vol. 5 No. 1(1996), p.71.

Google Scholar

[7] W.M. Mahoney, R. Crooks, in: Superplasticity in Aerospace, edited by H. C. Heikkenen et al, pp.331-344, Warrendale, PA, TMS(1988).

Google Scholar

[8] Yang De-zhuang: Dislocation and Strengthening Mechanism of Metals (Harbin Institute of Technology Press, China 1991).

Google Scholar

[9] Feng Duan�The Physics of Metals (First Volume�Structure and Defects)(Science Press, China 1991).

Google Scholar