Ni-Mn-Ga铁磁形状记忆合金的EBSD晶体学表征  

EBSD crystallographic characterization of Ni-Mn-Ga ferromagnetic shape memory alloys

作　　者：李宗宾[1] 杨波[1] 赵骧[1] 秦高梧[1] 左良[1,2] 

机构地区：[1]东北大学材料各向异性与织构教育部重点实验室,沈阳110819 [2]太原科技大学,太原030024

出　　处：《中国体视学与图像分析》2016年第1期46-57,共12页Chinese Journal of Stereology and Image Analysis

基　　金：国家自然科学基金(No.51431005;No.51571056);辽宁省博士启动基金(No.20141001);辽宁省教育厅一般项目(No.L2014094)

摘　　要：Ni-Mn-Ga合金是近年来倍受关注的一类新型智能材料。这类材料在磁场作用下能够产生大的输出应变且具有高的响应频率,有望成为新一代智能驱动与传感材料。过去二十年里,研究者们对Ni-Mn-Ga合金开展了广泛研究并取得了丰硕成果。然而,作为一类新型磁控功能材料,人们对Ni-Mn-Ga合金的组织结构、界面特征、马氏体相变晶体学等方面还缺乏深刻的认识。随着空间分辨的EBSD取向分析技术的发展,在较大尺度范围内对合金组织的晶体学取向与其形貌特征进行有效关联已成为可能。本文概述了本课题组基于EBSD取向分析技术的Ni-Mn-Ga合金晶体学表征的近期研究进展。As a novel type of smart materials for potential use in sensor and actuator devices,Ni-Mn-Ga alloys have attracted considerable attention due to their large output and quick response under magnetic field. During the last two decades,a large amount of achievements have been obtained through numerous experimental and theoretical studies. However,as a newly developed material,there still lacks deep insights into the microstructure,interface characteristic and martensitic transformation crystallography ofNi-Mn-Ga alloys. With the rapid developing of the spatially resolved electron backscatter diffraction（ EBSD） technique,the correlation between microstructure and crystallographic orientation has been possibly made in a large scale. In this paper,we reviewed recent progress of the crystallographic characterization of Ni-Mn-Ga alloys in our group based on EBSD measurements.

关 键 词：NI-MN-GA合金 电子背散射衍射(EBSD) 马氏体转变 微观组织表征 晶体学 

分 类 号：TG139.6[一般工业技术—材料科学与工程]