Phase Development and Crystallization Kinetics of NiTi Prepared by Mechanical Alloying

• 作 者: Xunyong JIANG Xueping GAO Deyi
• 机 构: Institute of New Energy Material Chemistry,Department of Materials Science and Engineering
• 出 处: 材料科学技术学报（英文版）
• 发表日期: 2004年期
• 关键词: NiTi Mechanical alloying Amorphous Crystallization

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.