First-order phase transition La-Fe-Si bulk materials with small hysteresis by laser powder bed fusion: Microstructure and magnetocaloric effect

被引：11

作者：

Lu, Xiang ^{[1
,2
]}

Miao, Liya ^{[1
,2
,3
]}

Zhang, Yifei ^{[1
,2
]}

Wang, Zhi ^{[4
]}

Zhang, Hu ^{[5
]}

Li, Guowei ^{[1
,2
,3
]}

Liu, Jian ^{[6
]}

机构：

[1] Chinese Acad Sci, CAS Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techno, Ningbo 315201, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] South China Univ Technol, Guangdong Key Lab Adv Met Mat Proc, Guangzhou 510641, Peoples R China

[5] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[6] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China

来源：

SCRIPTA MATERIALIA | 2023年 / 232卷

关键词：

Laser powder bed fusion; La-Fe-Si alloys; Microstructure; Magnetocaloric effect; LA(FE;

D O I：

10.1016/j.scriptamat.2023.115479

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, laser powder bed fusion method is used to fabricate first-order phase transition LaFe13.9Si1.4 bulk materials. The main finding is that a negligible hysteresis is obtained after annealing. We attribute this primarily to the numerous refined alpha-Fe residual phase which promotes the paramagnetic/ferromagnetic phase transition by the stray field at the interface. The fine microstructure and amorphous/nanocrystalline La-rich phase in the as-printed sample contribute to the formation of the refined alpha-Fe phases accompanied by a large alpha-Fe/La(Fe, Si)13 interface during annealing. More importantly, the first-order phase transition behavior is maintained and the magnetic entropy change for 0-2 T is 13.4 J/kg K. This study demonstrates that laser powder bed fusion is a feasible approach for fabricating high-performance rare-earth-based magnetic materials.

引用

页数：6

共 26 条

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JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 683 : 67 - 75
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CURRENT APPLIED PHYSICS, 2022, 42 : 7 - 21
[23] The Magnetocaloric Effect of LaFe11.6Si1.4, La0.8Nd0.2Fe11.5Si1.5, and Ni43Mn46Sn11 Compounds in the Vicinity of the First-Order Phase Transition (vol 21, pg 693, 2009)
Zou, Jun-Ding
Shen, Boo-Gen
Goo, Bo
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ADVANCED MATERIALS, 2009, 21 (37) : 3724 - 3724
[24] Large reversible magnetocaloric effect across the first-order magneto- structural transition in (Mn0.45Fe0.55) (Ni0.6Co0.4) Si alloy
Panda, Shantanu Kumar
Biswal, Sambit Kumar
Mallick, Jyotirekha
Datta, Subhadeep
Kar, Manoranjan
JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 949
[25] Large magnetocaloric effect in lanthanum-deficiency manganites La0.8-xx xCa0.2MnO3 (0.00 ≤ X ≤ 0.20) with a first-order magnetic phase transition
Skini, R.
Omri, A.
Khlifi, M.
Dhahri, E.
Hlil, E. K.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2014, 364 : 5 - 10
[26] Effect of direct aging on microstructure, mechanical properties and shape memory behavior of Fe-17Mn-5Si-10Cr-4Ni-(V, C) shape memory alloy fabricated by laser powder bed fusion
Kim, Dohyung
Ferretto, Irene
Leinenbach, Christian
Lee, Wookjin
Kim, Wangryeol
MATERIALS CHARACTERIZATION, 2023, 197

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