Phase Development and Crystallization Kinetics of NiTi Prepared by Mechanical Alloying

J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (06): 560-562.

• Research Articles • Previous Articles Next Articles

Phase Development and Crystallization Kinetics of NiTi Prepared by Mechanical Alloying

Xunyong JIANG, Xueping GAO, Deying SONG

Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China;Department of Materials Science and Engineering, Tianjin Institute of Technology, Tianjin 300191, China

Received:1900-01-01 Revised:1900-01-01 Online:2003-11-28 Published:2009-10-10
Contact: Xunyong JIANG

Abstract

Abstract: NiTi alloy is produced by mechanical alloying(MA). It becomes amorphous after milling for enough time, such as 100 h in this paper. DSC measurement shows that the crystallization temperature is 676 K for the amorphous powder. Activation energy of crystallization is 199.98 kJ/mol for MA powder, which is lower than that of amorphous prepared by magnetron sputtering. Avrami parameter of crystallization is 1.07.

Key words: NiTi, Mechanical alloying, Amorphous, Crystallization

Xunyong JIANG, Xueping GAO, Deying SONG. Phase Development and Crystallization Kinetics of NiTi Prepared by Mechanical Alloying[J]. J Mater Sci Technol, 2003, 19(06): 560-562.

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Phase Development and Crystallization Kinetics of NiTi Prepared by Mechanical Alloying

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