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Texture Evolutions in Fe-6.5%Si Produced by Rapid Solidification and Chemical Vapor Deposition

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Journal of Materials Science & Technology 2002年第6期18卷 516-518页

作者： Liang ZUO Guangyong HU Yuhui SHA claude esling School of Materials Science and Metallurgy Northeastern UniversityShenyang 110004China Laboratoire d'Etude des Textures et Application aux Materiaux CNRS UMR 7078Universite de Metz 57045 Metz Cedex 1France

Fe-Si ribbons and thin sheets with 6.5%Si content were prepared by means of the single roller rapid solidification and chemical vapor deposition (CVD), respectively. The initial textures of rapidly solidified Fe-6.5%Si ribbons were characteristic of the {100} fiber-type, which became weakened during primary recrystallization in various atmospheres. At the stage of secondary recrystallization, the {100} texture formed in Ar and the {110} texture in hydrogen, while there occurred a texture transformation from the {100} type to the {110} type in vacuum with the increase of annealing temperature. For Fe-6.5%Si sheets prepared by Si deposition in cold-rolled Fe-3%Si matrix sheets, their textures were dominated by the η-fiber (//RD) with the maximum density at the {120} orientations. After homogenization annealing, the η-fiber could evolve into the {130} type or become more concentrated on the {120} orientations, depending on the cold rolling modes of Fe-3%Si matrix sheets.

关键词： Fe-6.5%Si alloy Texture Rapid solidification Chemical vapor deposition

Probing martensitic transformation,kinetics,elastic and magnetic properties of Ni2-xMn1.5In0.5Cox alloys

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Journal of Materials Science & Technology 2020年第9期44卷 31-41页

作者： Xinzeng Liang Jing Bai Jianglong Gu Haile Yan Yudong Zhang claude esling Xiang Zhao Liang Zuo Key Laboratory for Anisotropy and Texture of Materials Northeastern UniversityShenyang110819China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao066004China Hebei Provincial Laboratory for Dielectric and Electrolyte Functional Materials Qinhuangdao066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao066004China Laboratoire d’étude des Microstructures et de Mécanique des Matériaux LEM3 CNRSUMR 7239University of Lorraine57045MetzFrance

The martensitic transformation,kinetics,elastic and magnetic properties of the Ni2-xMn1.5In0.5Cox(x=0-0.33)ferromagnetic shape memory alloys were investigated experimentally and theoretically by first-principles ***-principles calculations show that Co directly occupies the site of Ni sublattice,and Co atoms prefer to distribute evenly in the *** optimized lattice constants are consistent with the experimental *** martensitic transformation paths are as follows:PA↔FA↔6MFIM↔NMFIM when 0≤x<0.25;PA↔FA↔6MFM↔NMFIM with 0.25≤x<0.3 and PA↔FA↔NMFM with 0.3≤x≤0.33 for Ni2-xMn1.5In0.5Cox(x=0-0.33)*** fundamental reasons for the decrease of TM with increasing Co content are explained from the aspects of first-principles calculations and martensitic transformation *** component interval of the magnetostructural coupling is determined as 0≤x≤0.25 by first-principles ***,the origin of the demagnetization effect during martensitic transformation is attributed to the shortening of the nearest neighboring distances for Ni-Ni(Co)and *** the theoretical calculations with experimental results,it is verified that the TM of the Co6 alloy is near room temperature and its magnetization differenceM is 94.6 emu/***,magnetic materials with high performance can be obtained,which may be useful for new magnetic applications.

关键词： Ni-Mn-In-Co First-principles calculations Martensitic transformation Kinetics Elastic and magnetic property

Manipulation of magnetocaloric and elastocaloric effects in Ni-Mn-In alloys by lattice volume and magnetic variation:Effect of Co and Fe co-doping

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Journal of Materials Science & Technology 2024年第5期172卷 156-165页

作者： Xinzeng Liang Chi Zhang Jing Bai Jianglong Gu Yudong Zhang claude esling Xiang Zhao Liang Zuo School of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China Key Laboratory for Anisotropy and Texture of Materials Northeastern UniversityShenyang 110819China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China Laboratoire d’Étude des Microstructures et de Mécanique des Matériaux LEM3 CNRSUMR 7239University of Lorraine57045 MetzFrance

The effects of Co and Fe co-doping Ni-Mn-In alloy on the phase stability,lattice parameters,mag-netic properties,and electronic structures are systematically investigated by using the first-principles *** indicate that Fe atoms replace the excess Mn2 atoms by direct and indirect coex-istence(Fe→Mn 2 and Fe→In→Mn2);Co substitutes the Ni atoms by direct substitution(Co→Ni)for the Ni-Mn-In *** austenites all exhibit the ferromagnetic(FM)state for the studied *** NM martensites are in the ferrimagnetic(FIM-1)state for the Ni_(2)Mn_(1.5)In_(0.5),Ni_(2)Mn_(1.25)In_(0.5)Fe 0.25,Ni_(1.75)Mn_(1.5)In_(0.5)Co_(0.25),and Ni_(1.75)Mn_(1.25)In_(0.5)Co_(0.25)Fe 0.25 alloys,while the other compositions are in the FM *** phase stability of austenite and martensite decreases with increasing Co and Fe co-doping.A magnetic-structural coupling transition occurs at x<0.25 and y<*** Ni_(1.91)Mn_(1.5)In_(0.5)Co_(0.08)and Ni_(1.91)Mn_(1.42)In_(0.5)Co_(0.08)Fe_(0.08)alloys exhibit an A→6M→NM transformation,accompanied by a magnetic *** Co and Fe are co-doped,the hybridization strength between Co and Fe is greater than that between Co/Fe and *** enhancement of magnetocaloric and elastocaloric effects is favored by larger magnetization difference(△M)and lattice volume change(△V/V_(0)).Based on the calculated phase stability,magneto-structure coupling,△V/V 0 and c/a ratio,one can predict that the Ni_(2)-x Mn_(1.5)-y In_(0.5)Co x Fe y alloy with Co content 0≤x≤0.25 and Fe content 0≤y≤0.05 is predicted to have good magneto-controlled functional behavior.

关键词： Ni-Mn-In-Co-Fe Phase stability Magnetocaloric effect Elastocaloric effect

Super-high strength of a CoCrNiFe based high entropy alloy

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Journal of Materials Science & Technology 2024年第10期177卷 79-84页

作者： Jiale Man Baolin Wu Guosheng Duan Lu Zhang Xinghao Du Yandong Liu claude esling Key laboratory for Anisotropy and Texture of Materials(Ministry of Education) Northeastern UniversityShenyang 110819China School of Materials Science and Engineering Shenyang Aerospace UniversityShenyang 110136China LEM3 UMR CNRS 7239 Universitéde LorraineMetz 57045France

*** With the upgrading of major equipment,the mechanical prop-erty requirements for structural materials are increasingly *** maraging steel or maraging stainless steel has long repre-sented the highest strength alloy to be developed as reported in recent researches[1-8].The tensile strength of this kind of alloy is usually around 2.0 *** yield strength of a maraging steel re-cently fabricated by laser powder bed fusion can reach as high as about 2.4 GPa,but it is unfortunate that the elongation is merely about 1%[9].So it seems that 2.0 GPa yield strength is an upper limitation for this kind of *** break through this limitation,it is of significance to establish a new composition design *** instance,recent work[10]reported a medium Mn steel doped with Al and V elements,which exhibits an ultra-high yield strength of 2.21 GPa with 15%uniform elongation after thermo-mechanical *** another aspect,the design using multi-ple principal elements and additional elements to form a high en-tropy alloy(HEA)should be a very promising pathway.

关键词： alloy strength steel

Investigation of martensitic transformation behavior in Ni-Mn-In Heusler alloy from a first-principles study

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Journal of Materials Science & Technology 2020年第23期58卷 100-106页

作者： Jinlong Wang Jing Bai Jianglong Gu Haile Yan Yudong Zhang claude esling Xiang Zhao Liang Zuo Key Laboratory for Anisotropy and Texture of Materials Northeastern UniversityShenyang110819China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao066004China Laboratoire d’Étude des Microstructures et de Mécanique des Matériaux LEM3CNRSUMR 7239University of Lorraine57045MetzFrance Hebei Provincial Laboratory for Dielectric and Electrolyte Functional Materials Qinhuangdao066004China

Composition dependence of martensitic transformations as well as the magnetic properties for the Ni_2 Mn_(1+x)In_(1-x)(0.25≤x≤0.58)alloys were investigated by using the first-principles *** results demonstrate that the stability of parent austenite(A)decreases gradually with increasing Mn content whilst it is opposite for the martensitic *** causes the total energy difference between the austenite and martensite phases increscent with increasing Mn *** x=0.33,the martensite transformation during cooling is PA→FA→*** x≥0.42,an intermartensitic transformation occurs from modulated 6 M martensite to non-modulated(NM)martensite with the martensite transformation sequence of PA→FA→6 M→*** martensitic transformation from austenite to martensite accompanies the transition from ferromagnetic to ferrimagnetic *** is a typical magneto-structural coupling *** analysis of the density of states demonstrates that the Ni 3 d state plays an important role in the phase stability.

关键词： Ni-Mn-In Shape memory alloy Martensitic transformation Magnetic properties First-principles calculations

Composition-Dependent of 6 M Martensite Structure and Magnetism in Cu-Alloyed Ni-Mn-In-Co by First-Principles Calculations

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Acta Metallurgica Sinica(English Letters) 2022年第6期35卷 1034-1042页

作者： Xinzeng Liang Jing Bai Jianglong Gu Ziqi Guan Haile Yan Yudong Zhang claude esling Xiang Zhao Liang Zuo Key Laboratory for Anisotropy and Texture of Materials Northeastern University110819 ShenyangChina School of Resources and Materials Northeastern University At Qinhuangdao066004 QinhuangdaoChina State Key Laboratory of Metastable Materials Science and Technology Yanshan University066004 QinhuangdaoChina Hebei Provincial Laboratory for Dielectric and Electrolyte Functional Materials 066004 QinhuangdaoChina Laboratoire D’étude Des Microstructures Et de Mécanique Des Matériaux UMR 7239LEM3 CNRSUniversity of Lorraine57045 MetzFrance

The composition dependence of the crystal structure and magnetism of the 6 M martensite for the Cu-doped Ni_(43.75)Mn_(37.5)In_(12.5)Co_(6.25) alloy at different site occupations(Cu substitution for Ni, Mn, In, and Co, respectively) is investigated in detail with the first-principles calculations. Results show that the austenite(A) phase exhibits a ferromagnetic(FM) state in all occupation manners, the 6 M martensite possesses an FM state except for the case of Cu substitution at the normal Mn(Mn1) site, and the non-modulated(NM) martensite displays a ferrimagnetic(FIM) state apart from the Cu substitution at the Ni, Mn1, or In sites. The Cu atom destabilizes the A, 6 M, and NM phases regardless of the occupation manner. The one-step martensitic transformation from the A to NM phase occurs in the case of Cu substituting for Mn1, excess Mn(Mn2), or Co;for Cu substituting Ni, a martensitic transformation including 6 M martensite happens, i.e., A → 6 M → NM;however, the martensitic transformation disappears when Cu replaces In site. From the equilibrium lattice constants, it can be speculated that the substitution of Cu for Ni can effectively reduce the thermal hysteresis( ΔT_(Hys)). The magnetic properties are found to be greatly reduced by the substitution of the non-magnetic element Cu for the ferromagnetic Mn atom, whereas the effect is fewer in the remaining cases. It is predicted that the alloy has more favorable properties when Cu replaces Ni. The present results can lay a theoretical foundation for further development of multielement magnetic shape memory alloys.

关键词： First-principles calculations Ni-Mn-In-Co-Cu 6 M martensite Phase stability Magnetic property

Revealing the role of site occupation in phase stability,magnetic and electronic properties of Ni-Mn-In alloys by ab initio approach

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Journal of Materials Science & Technology 2021年第24期83卷 90-101页

作者： Xinzeng Liang Jing Bai Ziqi Guan Jianglong Gu Haile Yan Yudong Zhang claude esling Xiang Zhao Liang Zuo Key Laboratory for Anisotropy and Texture of Materials Northeastern UniversityShenyang110819China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao066004China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao066004China Laboratoire d'Étude des Microstructures et de Mécanique des Matériaux LEM3 CNRSUMR 7239University of Lorraine57045MetzFrance

The effects of site occupation on the phase stability,martensitic transformation,and the magnetic and electronic properties of a full series of Ni-Mn-In alloys are theoretically studied by using the ab initio *** indicate that the excess atoms of the rich component directly take the sublattices of the deficient components of the Ni2Mn_(1+x)In_(1-x),Ni2-xMn_(1+x)In,and Ni_(2+x)Mn_(1-x)In ***,the mixed and indirect site occupations may coexist in the Ni_(2+x)Mn In_(1-x)*** relevant magnetic configurations of the austenite for the four alloy systems have also been *** results show that,except for the austenite in the Ni2-xMn_(1+x)In alloys,which tend to be ferrimagnetic,the other alloys all present ferromagnetic ***,the site occupation and associated magnetic states are the crucial influencing factors of the phase stability,martensitic transformation,and the total magnetic *** electronic structure of the austenite phase also shows that the covalent bonding plays an important role in the phase *** key finding of this work is both Ni2Mn_(1+x)In_(1-x)and Ni_(2+x)Mn In_(1-x)alloys serve as the potential shape memory alloys.

关键词： Ni-Mn-In Ab initio calculations Site occupation Phase stability Magnetic property

On the nature of a peculiar initial yield behavior in metastable β titanium alloy Ti-5Al-5Mo-5V-3Cr-0.5Fe with different initial microstructures

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Journal of Materials Science & Technology 2020年第3期38卷 135-147页

作者： Jiangkun Fan Zhixin Zhang Puyi Gao Ruimeng Yang Huan Li Bin Tang Hongchao Kou Yudong Zhang claude esling Jinshan Li State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an710072China National&Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials Xi’an710072China School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi’an710129China Laboratoire d’étude des Microstructures et de Mécanique des Matériaux(LEM3) CNRS 7239Universitéde Lorraine57045MetzFrance Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures(DAMAS) Universitéde Lorraine57045MetzFrance

The compressive yielding phenomenon of titanium alloys is not as focused and sufficiently ascertain as the tensile yielding *** the present work,the peculiar compressive yielding behavior and the different dynamic responses of three different initial microstructures(singleβ,clavateβand lamellarβ)were investigated in an attractive metastableβtitanium alloy Ti-5553 using electron microscopes/crystallographic calculation/crystal plastic finite element *** reveal that the distinct compressive yielding behavior,steep peaks of sudden drop in the initial stage(very small true strain 0.03)of stress loading have appeared in the compression stress-strain curves except for the lamellarβinitial *** slip is the essential mechanism of the initial yielding *** multiple-slip bands formed in the singleβinitial microstructure during the warm deformation process.A small quantity of single slip bands was observed in the deformed clavateβinitial *** abundant varied nano/ultrafineβsprecipitates were nucleated dynamically and dispersedly in all the three deformed initial *** multiple-slip bands formation and substantial nanoscaleβsresult in the highest peak of flow stress for singleβinitial *** compressive slip bands are formed early in the elastic–plastic deformation *** the increasing strain,the sample showed a significant compressive bulge,or eventually forming a strong adiabatic shear band or *** results are expected to provide a reference for the study of deformation behavior and mechanical properties of metastableβtitanium alloys.

关键词： Titanium alloy Initial yield Deformation mechanism Slip band Phase transformation Ti-5553

Impact of W alloying on microstructure, mechanical property and corrosion resistance of face-centered cubic high entropy alloys: A review

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International Journal of Minerals,Metallurgy and Materials 2023年第9期30卷 1667-1679页

作者： Na Xiao Xu Guan Dong Wang Haile Yan Minghui Cai Nan Jia Yudong Zhang claude esling Xiang Zhao Liang Zuo Analytical and Testing Center Northeastern UniversityShenyang 110819China Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Material Science and EngineeringNortheastern UniversityShenyang 110819China College of Mechanical Engineering Zhijiang College of Zhejiang University of TechnologyShaoxing 312030China Laboratoire d'Étude des Microstructures et de Mécanique des Matériaux(LEM3) CNRS UMR 7239Universitéde Lorraine57045 MetzFrance Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures(DAMAS) Universitéde Lorraine57045 MetzFrance

Face-centered cubic (f.c.c.) high entropy alloys (HEAs) are attracting more and more attention owing to their excellent strength and ductility synergy, irradiation resistance, etc. However, the yield strength of f.c.c. HEAs is generally low, significantly limiting their practical applications. Recently, the alloying of W has been evidenced to be able to remarkably improve the mechanical properties of f.c.c. HEAs and is becoming a hot topic in the community of HEAs. To date, when W is introduced, multiple strengthening mechanisms, including solid-solution strengthening, precipitation strengthening (μphase,σphase, and b.c.c. phase), and grain-refinement strengthening, have been discovered to be activated or enhanced. Apart from mechanical properties, the addition of W improves corrosion resistance as W helps to form a dense WO_(3) film on the alloy surface. Until now, despite the extensive studies in the literature, there is no available review paper focusing on the W doping of the f.c.c. HEAs. In that context, the effects of W doping on f.c.c. HEAs were reviewed in this work from three aspects, i.e., microstructure,mechanical property, and corrosion resistance. We expect this work can advance the application of the W alloying strategy in the f.c.c. HEAs.

关键词： high-entropy alloys lattice distortion W doping mechanical property precipitation