Phase transformation and microstructure of Ni-Mn-Ga ferromagnetic shape memory alloy particles

摘要：

In the present paper, ball milling is used to produce Ni49.8Mn28.5Ga21.7 particles of micrometer size. Although the characteristics of transformation are not observed in the as-milled particles from 150 to 523K from differential scanning calorimetry (DSC) study, the particles exhibit the same transformation behaviour as the bulk sample after annealing at 1073K for 2h. The as-annealed particles show good thermal cycling stability even after five thermal cycles. Temperature memory effect during the reverse martensitic transformation is found in the as-annealed particles. The particles exhibit regular shape, with 10M martensite structure at room temperature.

作者: Feng Chen Bing Tian Li Li Yufeng Zheng

作者单位: Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, Peopl Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, Peopl

会议类型: 国际会议

会议名称: 第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)

会议地点: 杭州

会议语种:英文

页码: 227-230

在线出版日期: 2007-05-16（万方平台首次上网日期，不代表论文的发表时间）