Spray Forming and Thermal Processing for High Performance Superalloys

Guo Qing Zhang; Zhou Li; Zhong Wu Liu; Zhi Hui Zhang; Yifei Zhang; Hua Yuan; Rui Ping Yao; Shibin Xu; Shi Fan Tian; Ming Gao Yan

doi:10.4028/www.scientific.net/MSF.475-479.2773

Paper Titles

Microstructure Evolution in a Directional Solidification Process
p.2757

A New Approach to Calculate Liquid-Vapor Surface Energy Using Sessile Droplet Test
p.2761

Weldability Approach to Duplex Stainless Steels Using Multicomponent Phase Diagrams
p.2765

Effect of Sb on the Graphite Morphology and Mechanical Properties in Heavy Section Ductile Iron
p.2769

Spray Forming and Thermal Processing for High Performance Superalloys
p.2773

Recent New Development of Spray Formed Ultrahigh-Carbon Steels
p.2779

Research on Ultra-High Strength Al-11Zn-2.9Mg-1.7Cu Alloy Prepared by Spray Forming Process
p.2785

Spray Forming of AZ91 Magnesium Alloys with and without Si Addition
p.2789

Spray Forming of Homogeneous Bearing Steel of Minimized Distortion Potential
p.2795

HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Spray Forming and Thermal Processing for High...

Spray Forming and Thermal Processing for High Performance Superalloys

Abstract:

A unique pilot low-pressure spray forming plant was established and its spray atomisation and deposition process developed to study the new processing methods for high performance materials and to develop spray forming technology suitable for making sound superalloy preforms. The results indicated that high density (>99%) preforms (billets and rings) with little gas pick-ups and with the microstructural features of rapidly solidified superalloys, i.e. refined equiaxed grains and uniform microstructure, could be achieved after the optimisation of the spray atomisation and deposition process. The effects of subsequent thermal processing on the density, microstructure and mechanical properties of the spray formed superalloy were investigated. Compared to the turbine disks and rings made by wrought superalloys, the spray formed superalloys with identical chemistry showed significantly improved metallurgical quality, higher mechanical properties, and better hot workability.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

2773-2778

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.2773

Citation:

Cite this paper

Online since:

January 2005

Authors:

Guo Qing Zhang, Zhou Li, Zhong Wu Liu, Zhi Hui Zhang, Yifei Zhang, Hua Yuan, Rui Ping Yao, Shibin Xu, Shi Fan Tian, Ming Gao Yan

Keywords:

Spray Forming, Superalloy, Thermal Processing

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] R. H. Bricknell: Metall. Trans. A Vol. 17A (1986), p.583.

Google Scholar

[2] A. C. Cabral and A L. Haynes: The Fourth International Conference on Spray Forming, (Baltimore, MD, USA 1999).

Google Scholar

[3] M. G. Benz et al.: Powder Metallurgy, Vol. 37 (1994), p.213.

Google Scholar

[4] W. T. Carter et al.: Superalloys 718, 625, 706 and Various Derivatives (ed. E. A. Loria), (TMS, Warrendale, PA, USA 1997), p.27.

DOI: 10.7449/1997/superalloys_1997_835_839

Google Scholar

[5] S. Tian et al.: Superalloys 1992 (ed. R. D. Kissinger), (TMS, Warrendale, PA, USA 1996), p.729.

Google Scholar

[6] G. Zhang et al.: The Third Pacific Rim International Conference on Advanced Materials and Processing (ed. M. A. Imam et al. ), (TMS, Warrendale, PA, USA 1998), p.1687.

Google Scholar

[7] G. Zhang et al. ：Proc. International Conference on Spray Deposition and Melt Atomisation (ed. K. Bauckhage et al. ), (Bremen University 2000), p.161.

Google Scholar