中国材料进展
中國材料進展
중국재료진전
MATERIALS CHINA
2011年
9期
42-50,56
,共10页
磁性形状记忆合金%马氏体相变%磁性转变%磁场驱动孪晶再取向%磁场诱发相变
磁性形狀記憶閤金%馬氏體相變%磁性轉變%磁場驅動孿晶再取嚮%磁場誘髮相變
자성형상기억합금%마씨체상변%자성전변%자장구동련정재취향%자장유발상변
magnetic shape memory alloys%martensitic transformation%magnetic transition%magnetic-field-induced twin variants reorientation%mangetic-field-induced phase transformation
磁性形状记忆合金是上世纪90年代开始出现的一类新型金属功能材料。这类合金兼具热弹性马氏体相变和磁性转变，其形状记忆效应可以由磁场控制。此外这类合金还具有磁阻、磁热等丰富的物理效应，因而一直是近期研究热点。首先介绍了磁性形状记忆合金的3个基本特征，即马氏体相变与磁性转变、磁场驱动孪晶再取向和磁场诱发相变。然后分别对Ni基、Co基和Fe基磁性形状记忆合金的研究现状进行了评述。最后展望了磁性形状记忆合金的发展趋势。
磁性形狀記憶閤金是上世紀90年代開始齣現的一類新型金屬功能材料。這類閤金兼具熱彈性馬氏體相變和磁性轉變，其形狀記憶效應可以由磁場控製。此外這類閤金還具有磁阻、磁熱等豐富的物理效應，因而一直是近期研究熱點。首先介紹瞭磁性形狀記憶閤金的3箇基本特徵，即馬氏體相變與磁性轉變、磁場驅動孿晶再取嚮和磁場誘髮相變。然後分彆對Ni基、Co基和Fe基磁性形狀記憶閤金的研究現狀進行瞭評述。最後展望瞭磁性形狀記憶閤金的髮展趨勢。
자성형상기억합금시상세기90년대개시출현적일류신형금속공능재료。저류합금겸구열탄성마씨체상변화자성전변，기형상기억효응가이유자장공제。차외저류합금환구유자조、자열등봉부적물리효응，인이일직시근기연구열점。수선개소료자성형상기억합금적3개기본특정，즉마씨체상변여자성전변、자장구동련정재취향화자장유발상변。연후분별대Ni기、Co기화Fe기자성형상기억합금적연구현상진행료평술。최후전망료자성형상기억합금적발전추세。
Magnetic shape memory alloys are a new kind of metallic functional materials developed in 1990s. The magnetic shape memory alloys possess both thermoelastic martensitic transformation and magnetic transition. Therefore the shape memory effect can be controlled by the magnetic field. Besides, these alloys also exhibit magnetoresistance, magnetocaloric effects, etc. The magnetic shape memory alloys have been the intensively studied topic in recent years. In this paper, we firstly introduce three basic features of magnetic shape memory alloys, i.e. the martensitic transformation and magnetic transition, magnetic-field-induced twin variants reorientation, and magnetic-field-induced phase transformation. Secondly, the developments of Ni-based, Co-based and Fe-based magnetic shape memory alloys are reviewed. Finally, the future trends of magnetic shape memory alloys are prospected.
