Effect of solution treatment under load on microstructure and fabrication of porous NiTi shape memory alloy by self-propagating high temperature synthesis

Abstract

Porous NiTi shape memory alloy was fabricated by self-propagating high temperature synthesis. Effects of solution treatment under load applied on the microstructure were investigated. The densities of the phases changed insignificantly with solution treatment but the intermetallic phases such as Ti₂Ni, Ni₄Ti₃ and Ni₃Ti₂ disappeared and the density of B2(NiTi) phase increased with the load applied during solution treatment. Consequently, porous NiTi SMA with ideal pore characteristics, high chemical homogeneity and high strength for hard tissue implants was obtained.

Keywords

NITI SHAPE MEMORY ALLOYS POROUS MATERIALS SELF-PROPAGATING HIGH TEMPERATURE SYNTHESIS

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References

Bram

, Ahmad-Khanlou

, Heckmann

, Fuchs

, H. P. Buchkremer and D. Stöver: Mater. Sci. Eng. A, 2002, A337, 259.

Zhu

S. L.

, Yang

X. J.

, Hu

, Deng

S. H.

and Cui

Z. D.

: Mater. Lett., 2004, 58, 2369–2373.

Chu

C. L.

, Chung

C. Y.

, Lin

P. H.

and Wang

S. D.

: Mater. Sci. Eng. A, 2004, A366, 114–119.

Chu

C. L.

, Chung

C. Y.

, P. H. Lin and S. D. Wang: J. Mater. Process. Technot, 2005, 169, 103–107.

Man

H. C.

, Zhang

, Cheng

F. T.

and Guo

: Mater. Sci. Eng. A, 2005, A404, 173–178.

Jiang

H. C.

and Rong

L. J.

: Mater. Sci. Eng. A, 2006, A438-440, 883–886.

Whitney

, Corbin

S. F.

and Gorbet

R. B.

: Acta Mater., 2008, 56, 559–570.

Krone

, Schuller

, Bram

, Hamed

, Buchkremer

H. P.

and Stöver

: Mater. Sci. Eng. A, 2004, A378, 185–190.

Yuan

, Chung

C. Y.

and Zhu

: Mater. Sci. Eng. A, 2004, A382, 181–187.

10.

Shearwood

, Fu

Y. Q.

, Yu

and Khor

K. A.

: Scr. Mater., 2005, 52, 455–460.

11.

Yeh

C. L.

and Sung

W. Y.

: J. Alloys Compd, 2004, 376, 79–88.

12.

Zanotti

, P. Giuliani, A. Terrosu, S. Gennari and F. Maglia: Intermetallics, 2007, 15, 404–412.

13.

, Chung

C. Y.

, Liu

, P. K. Chu, J. P. Y. Ho, C. L. Chu, Y. L. Chan, K. W. K. Yeung, W. W. Lu, K. M. C. Cheung and K. D. K. Luk: Acta Mater., 2007, 55, 3437–3451.

14.

Tay

B. Y.

, Goh

C. W.

, Yong

M. S.

, Soutar

A. M.

, Li

, Ho

M. K.

, Myint

M. H.

, Gu

Y. W.

and Lim

C. S.

: ‘Self-propagating high-temperature synthesis of porous NiTi’, Technical Report, SIMTech, Nanyang Drive, Singapore, 2006.

15.

Bertheville

, Neudenberger

and Bidaux

J. E.

: Mater. Sci. Eng., 2004, 384, 143–150.

16.

Bertheville

and Bidaux

J. E.

: Scr. Mater., 2005, 52, 507–512.

17.

Bertheville

and Bidaux

J. E.

: J. Alloys Compd, 2005, 387,211-216.

18.

Ryhanen

: Tiocompatibility evaluation of nickel titanium shape memory metal alloy’, PhD thesis, Oulu University, Finland, 1999.

19.

Chung

C. Y.

, Chu

C. L.

and Wang

S. D.

: Mater. Lett., 2004, 58, 1683–1686.

20.

B. Y.

, Rong

L. J.

, Li

Y. Y.

and Gjunter

V. E.

: Acta Mater., 2000, 48, 3895–3904.

21.

Kaya

: ‘The investigation of the metallurgical and mechanical characteristics of NiTi shape memory alloys produced with powder metallurgy’, PhD thesis, Firat University, Elazig, Turkey, 2008.

22.

Orhan

, Ta

. Oun, A. K. Giir and E. Onsaldi: Proc. 3nd Int. Adv. Technol. Symp., Ankara, Turkey, August 2003, University of Gazi, 71–77.

23.

Zhu

S. L.

, Yang

X. J.

, Fu

D. H.

, Zhang

L. Y.

, Li

C. Y.

and Cui

Z. D.

: Mater. Sci. Eng. A, 2005, A408, 264–268.

24.

Y. H.

, Rong

L. J.

and Li

Y. Y.

: J. Alloys Compd, 2002, 345, 271–274.