Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elements

The Tb-Dy-Fe alloy with superior magnetostrictive strain and excellent energy density is applied in various fields such as precise driving and intelligent sensing. However, the Laves phase of magnetostrictive alloys has severe brittleness and poor fracture toughness at room temperature, limiting the...

Full description

Bibliographic Details
Main Authors: Guolin Xiao, Zhichao Ma, Hairui Du, Shuai Tong, Yubin Zheng, Hongwei Zhao, Luquan Ren
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Materials & Design
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127522003112
_version_ 1817976449811873792
author Guolin Xiao
Zhichao Ma
Hairui Du
Shuai Tong
Yubin Zheng
Hongwei Zhao
Luquan Ren
author_facet Guolin Xiao
Zhichao Ma
Hairui Du
Shuai Tong
Yubin Zheng
Hongwei Zhao
Luquan Ren
author_sort Guolin Xiao
collection DOAJ
description The Tb-Dy-Fe alloy with superior magnetostrictive strain and excellent energy density is applied in various fields such as precise driving and intelligent sensing. However, the Laves phase of magnetostrictive alloys has severe brittleness and poor fracture toughness at room temperature, limiting the development of their engineering instruments. In the present study, the transition element doping method is proposed to regulate the elemental composition for the severe brittleness of Tb-Dy-Fe-Cu alloys. The values of Vickers hardness for Nb-doped and Ti-doped specimens were 520.82 HV and 531.90 HV, respectively, with an increase of 4.097% and 6.311% compared to the original specimens. The saturation magnetostriction coefficient is 800p.p.m. for the natural specimens and around 620p.p.m. for the doped specimens. On the one hand, the enhancement of the mechanical properties of doped specimens is mainly attributed to the growth twins and nanoprecipitates induced by doping the transition element. On the other hand, the weakened magnetic properties of the doped specimens ascribed to the accumulations consisting of nanoprecipitates, twins, and elemental aggregates. This doping method could provide an essential reference for developing novel magnetostrictive materials with more desirable and balance physical properties.
first_indexed 2024-04-13T22:03:39Z
format Article
id doaj.art-0679b094dffc426f96b977ce6292d26c
institution Directory Open Access Journal
issn 0264-1275
language English
last_indexed 2024-04-13T22:03:39Z
publishDate 2022-06-01
publisher Elsevier
record_format Article
series Materials & Design
spelling doaj.art-0679b094dffc426f96b977ce6292d26c2022-12-22T02:28:00ZengElsevierMaterials & Design0264-12752022-06-01218110690Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elementsGuolin Xiao0Zhichao Ma1Hairui Du2Shuai Tong3Yubin Zheng4Hongwei Zhao5Luquan Ren6School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, ChinaSchool of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China; Key Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130025, China; Corresponding author at: School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China.School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, ChinaSchool of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, ChinaSchool of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China; Key Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130025, ChinaSchool of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China; Key Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130025, China; Weihai Institute for Bionics-Jilin University, Weihai 264207, ChinaKey Laboratory of Bionic Engineering Ministry of Education, Jilin University, Changchun 130025, China; Weihai Institute for Bionics-Jilin University, Weihai 264207, ChinaThe Tb-Dy-Fe alloy with superior magnetostrictive strain and excellent energy density is applied in various fields such as precise driving and intelligent sensing. However, the Laves phase of magnetostrictive alloys has severe brittleness and poor fracture toughness at room temperature, limiting the development of their engineering instruments. In the present study, the transition element doping method is proposed to regulate the elemental composition for the severe brittleness of Tb-Dy-Fe-Cu alloys. The values of Vickers hardness for Nb-doped and Ti-doped specimens were 520.82 HV and 531.90 HV, respectively, with an increase of 4.097% and 6.311% compared to the original specimens. The saturation magnetostriction coefficient is 800p.p.m. for the natural specimens and around 620p.p.m. for the doped specimens. On the one hand, the enhancement of the mechanical properties of doped specimens is mainly attributed to the growth twins and nanoprecipitates induced by doping the transition element. On the other hand, the weakened magnetic properties of the doped specimens ascribed to the accumulations consisting of nanoprecipitates, twins, and elemental aggregates. This doping method could provide an essential reference for developing novel magnetostrictive materials with more desirable and balance physical properties.http://www.sciencedirect.com/science/article/pii/S0264127522003112Mechanical propertiesMagnetic propertiesGiant magnetostrictive materialGrowth twinsNano-precipitates
spellingShingle Guolin Xiao
Zhichao Ma
Hairui Du
Shuai Tong
Yubin Zheng
Hongwei Zhao
Luquan Ren
Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elements
Materials & Design
Mechanical properties
Magnetic properties
Giant magnetostrictive material
Growth twins
Nano-precipitates
title Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elements
title_full Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elements
title_fullStr Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elements
title_full_unstemmed Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elements
title_short Regulation of microstructure and physical properties of Tb-Dy-Fe-Cu alloys by doping with transition elements
title_sort regulation of microstructure and physical properties of tb dy fe cu alloys by doping with transition elements
topic Mechanical properties
Magnetic properties
Giant magnetostrictive material
Growth twins
Nano-precipitates
url http://www.sciencedirect.com/science/article/pii/S0264127522003112
work_keys_str_mv AT guolinxiao regulationofmicrostructureandphysicalpropertiesoftbdyfecualloysbydopingwithtransitionelements
AT zhichaoma regulationofmicrostructureandphysicalpropertiesoftbdyfecualloysbydopingwithtransitionelements
AT hairuidu regulationofmicrostructureandphysicalpropertiesoftbdyfecualloysbydopingwithtransitionelements
AT shuaitong regulationofmicrostructureandphysicalpropertiesoftbdyfecualloysbydopingwithtransitionelements
AT yubinzheng regulationofmicrostructureandphysicalpropertiesoftbdyfecualloysbydopingwithtransitionelements
AT hongweizhao regulationofmicrostructureandphysicalpropertiesoftbdyfecualloysbydopingwithtransitionelements
AT luquanren regulationofmicrostructureandphysicalpropertiesoftbdyfecualloysbydopingwithtransitionelements