Preparation of High-Porosity NiTi Alloys by Powder Sintering with NaCl Pre-Forming

Abstract:

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High-porosity NiTi shape memory alloy has pseudo-elasticity and shape memory effect for energy absorption and convenient on-line repair without replace. In this paper, high-porosity NiTi alloys with interconnected and well distributed pores were fabricated successfully by sintering, using NaCl as temporary space-holders. Optical microscope, SEM and XRD have been used to investigate the porosity and pore structures. The results show that porosity can be up to 88%.The size and porosity of the pores depend mainly on the addition of salts in the compacts, and are also related to temperature and forming pressure.

Info:

Periodical:

Advanced Materials Research (Volumes 152-153)

Edited by:

Zhengyi Jiang, Jingtao Han and Xianghua Liu

Pages:

1342-1345

DOI:

10.4028/www.scientific.net/AMR.152-153.1342

Citation:

H. B. Sun et al., "Preparation of High-Porosity NiTi Alloys by Powder Sintering with NaCl Pre-Forming", Advanced Materials Research, Vols. 152-153, pp. 1342-1345, 2011

Online since:

October 2010

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$35.00

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