文章信息/Info

Title:

Research Progress on Crystallography of NiMnIn Magnetic Shape Memory Alloy

文章編號:

1674-3962(2021)12-0996-11

作者:

閆海樂; 黃曉明; 楊波; 李宗賓; 趙驤; 左良

（東北大學 材料各向異性與織構教育部重點實驗室，遼寧 沈陽 110819）

Author(s):

YAN Haile;  HUANG Xiaoming;  YANG Bo;  LI Zongbin;  ZHAO Xiang;  ZUO Liang

(Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University， Shenyang 110819, China)

關鍵詞:

NiMnIn; 磁致形狀記憶合金; 調制馬氏體; 馬氏體相變; 變體選擇; 相變取向關系; 晶體學

Keywords:

NiMnIn;  magnetic shape memory alloy;  modulated martensite;  martensitic phase transformation;  variant selection;  orientation relationship in phase transformation;  crystallography

分類號:

TG146；TM271

DOI:

10.7502/j.issn.1674-3962.202101025

文獻標志碼:

A

摘要:

NiMnIn基合金是一類新型磁控功能材料，具有優異的磁致形狀記憶效應和磁熱效應等。該合金磁控性能來源于磁場誘發的逆馬氏體相變，即從弱磁性馬氏體轉變為鐵磁性奧氏體。奧氏體和馬氏體的晶體結構、馬氏體微觀組織晶體學特征、馬氏體相變取向關系等晶體學知識，對于深入理解和優化該合金多功能磁控行為具有重要的指導意義。基于近年來在NiMnIn基磁致形狀記憶合金晶體學研究方面取得的主要進展，圍繞奧氏體和6M調制馬氏體晶體結構特征、6M調制馬氏體微觀組織的晶體學特征及其形成機制、馬氏體相變晶體學取向關系、馬氏體相變轉變路徑、6M調制馬氏體在外加載荷下的變體重排行為及其機制5個方面展開討論。最后，對NiMnIn基磁致形狀記憶合金晶體學研究存在的主要問題和發展趨勢進行了總結和展望。

Abstract:

NiMnIn alloy is a kind of new magnetic-controlled intelligent materials, which has excellent magnetic shape memory effect and magnetocaloric effect. Its magnetoresponsive functional behaviors are originated from reverse martensitic phase transformation induced by magnetic field. In the process，there exists the transformation from weak�瞞agnetic martensite to ferromagnetic austenite. Thus, researches on crystal structures of austenite and martensite, crystallographic characters of martensite microstructure, and orientation relationship in martensitic phase transformation are helpful to understand and optimize the magnetoresponsive functional behaviors of NiMnIn alloy. Based on the research progress on crystallography of NiMnIn magnetic shape memory alloy, the five main contents were reviewed in this study. They can be concluded as crystal structures of austenite and 6M modulated martensite, crystallographic characters and formation mechanism of microstructure in 6M modulated martensite, orientation relationship in austenite-martensite phase transformation, transformation path of 6M martensitic phase transformation, rearrangement behavior and mechanism of martensite variants under external mechanical loading, respectively. Finally, the existing problems and development trend on crystallography study of NiMnIn alloy were summarized and prospected.