文章信息/Info

Title:

Research Progress in FeMnAlNi-Based Superelastic Alloys

文章編號:

1674-3962(2023)03-0238-11

作者:

汪必琛; 崔燁; 連宏凱; 王勝江; 吳廣傳; 張中武

（哈爾濱工程大學材料科學與化學工程學院，黑龍江 哈爾濱 150000）

Author(s):

WANG Bichen; CUI Ye; LIAN Hongkai; WANG Shengjiang; WU Guangchuan; ZHANG Zhongwu

(College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150000, China)

關鍵詞:

FeMnAlNi; 超彈性合金; 熱彈性馬氏體; 馬氏體相變; 析出相

Keywords:

FeMnAlNi;  superelastic alloys;  thermoelastic martensite;  martensitic transformation;  precipitation

分類號:

TG139

DOI:

10.7502/j.issn.1674-3962.202104040

文獻標志碼:

A

摘要:

FeMnAlNi系合金因極大的超彈性溫度范圍(-196~240 ℃)與馬氏體相變臨界應力極低的溫度依賴性（Clausius-Clapeyron斜率壓縮時小于0.2 MPa/℃，拉伸時小于0.5 MPa/℃），在航空航天、空間探索、減振抗震等方面展現(xiàn)出了良好的應用前景，成為近年來超彈性合金研究的熱點。FeMnAlNi系合金的超彈性受到多種因素的影響，提高其超彈性的關鍵在于控制析出相合理的析出狀態(tài)提高相變的熱彈性，增大晶粒尺寸提高相變的協(xié)調(diào)性，選擇合適的晶粒取向激活更多的馬氏體變體。首先介紹了馬氏體相變與超彈性的關系，然后從FeMnAlNi系合金特殊的馬氏體相變出發(fā)，對影響其超彈性的主要因素，包括組織因素（析出相、晶粒尺寸、晶粒取向）以及環(huán)境因素（磁場、溫度）目前的研究進展作出了歸納與總結(jié)，最后對Fe-MnAlNi系超彈性合金未來的研究發(fā)展方向進行了展望。

Abstract:

Due to its wide superelastic temperature range (-196~240 ℃) and extremely low temperature dependence on the critical stress of martensitic transformation（Clausius-Clapeyron slope is less than 0.2 MPa/℃ in compression and less than 0.5 MPa/℃ in tensile）, FeMnAlNi-based alloys have shown bright application prospects in aerospace, space exploration, vibration attenuation and anti�瞫eismic infrastructures, etc. The enhancement of the superelastic properties has been investigated extensively, becoming a hot research topic recently. The superelastic properties of FeMnAlNi alloys are affected by many factors. The key factors to improve the superelastic properties are as follows: controlling the reasonable precipitation state to improve the thermoelasticity of phase transition, increasing the grain size to improve the coordination of phase transition, and selecting the appropriate grain orientation to activate more martensite variants. This article first introduces the relationship between martensite phase transformation and superelasticity, next based on the special martensitic phase transformation of Fe-MnAlNi-based superelastic alloys, summarizes the main factors of affecting the superelastic including structure factors (precipitated phase, grain size and grain orientation) and environmental factors (magnetic field, temperature), finally provides an outlook on the future research direction of FeMnAlNi�瞓ased superelastic alloy.