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Effect of Ti/Nb/Ta addition on the γ/γ' coherent microstructure in low-density and high-strength Co-Al-W-Mo-based superalloys
《Journal of Materials Science & Technology》2024年第19期174-187,共14页Jinlin Li Jiaqi Zhang Zhen Li Qing Wang Chuang Dong Fen Xu Lixian Sun Peter K.Liaw 
financially supported by the National Natural Science Foundation of China(Nos.52171152,91860108 and U1867201);the Key Discipline and Major Project of Dalian Science and Technology Innovation Foundation(No.2020JJ25CY004);Guangxi Key Laboratory of Information Laboratory Foundation(No.221013-K);Peter K.Liaw very much appreciates the support from the National Science Foundation(Nos.DMR-1611180,1809640,and 2226508).
Coherent precipitation of cuboidal γ'-Co3(Al,W) nanoparticles in face-centered-cubic (FCC)-γ matrix is of great significance for improving high-temperature mechanical properties of Co-based superalloys. The present ...
关键词：Co-based superalloys Coherent microstructure Lattice misfit Particle coarsening Mechanical properties 
Thermal stability and deformation mechanisms in Ni-Co-Fe-Cr-Al-Ti-Nb-type nanoparticle-strengthened high-entropy alloys被引量：2
《Journal of Materials Science & Technology》2023年第36期171-183,共13页J.X.Hou J.Y.Zhang J.X.Zhang J.H.Luan Y.X.Wang B.X.Cao Y.L.Zhao Z.B.Jiao X.J.Liu W.W.Song P.K.Liaw T.Yang 
financially supported by the National Natu-ral Science Foundation of Chin a(Grant Nos.52101135,52101151,and 52171162);the Hong Kong Research Grant Coun-cil,University Grants Committee(RGC)with CityU grants Nos 21205621 and15227121;Wealso thankthefinancialsupport from the Shenzhen Science and Technology Program(Grant No.RCBS20210609103202012);PKL very much appreciates the sup-port from(1)the National Science Foundation(Nos.DMR-1611180,1809640,and 2226508);(2)the US Army Research Office(Nos.W911NF-13-1-0438 and W911NF-19-2-0049).
The precipitate morphologies,coarsening kinetics,elemental partitioning behaviors,grain structures,and tensile properties were explored in detail for L1_(2)-strengthened Ni_(39.9)Co_(20)Fe_(15)Cr_(15)Al_(6)Ti_(4-x)Nb_...
关键词：High-entropy alloys Coarsening kinetics Coherent precipitation strengthening Mechanical properties 
A strong and ductile NiCoCr-based medium-entropy alloy strengthened by coherent nanoparticles with superb thermal-stability被引量：6
《Journal of Materials Science & Technology》2023年第1期201-212,共12页D.D.Zhang J.Kuang H.Xue J.Y.Zhang G.Liu J.Sun 
supported by the National Natural Science Foundation of China(Nos.92163201,U2067219,51722104,51790482,and 51761135031);the National Key Research and Devel-opment Program of China(No.2017YFA0700701);the 111 Project 2.0 of China(No.BP2018008);the Fundamental Research Funds for the Central Universities(No.xtr022019004).
In this work,we designed a novel NiCoCr-based medium-entropy alloy(MEA)strengthened by coher-ent L12-nanoparticles,i.e.,(NiCoCr)92 Al 6 Ta 2(at.%).The strengthening and deformation mechanisms of the material and the c...
关键词：Medium-entropy alloy Mechanical properties Precipitation hardening Deformation mechanisms Coarsening kinetics 
Precipitation and coarsening kinetics of H-phase in NiTiHf high temperature shape memory alloy被引量：1
《Journal of Materials Science & Technology》2022年第19期90-101,共12页A.Shuitcev Y.Ren B.Sun G.V.Markova L.Li Y.X.Tong Y.F.Zheng 
supported by the National Natural Sci-ence Foundation of China(Nos.52050410340 and 51971072);the Fundamental Research Funds for the Central University(No.3072021CFJ1002).
Precipitate hardening is the most easiest and effective way to enhance strain recovery properties in NiTiHf high-temperature shape memory alloys.This paper discusses the precipitation,coarsening and age hardening of H...
关键词：High temperature shape memory alloys NiTiHf Time-temperature-transformation diagram Coarsening kinetics H-phase 
A correlative multidimensional study ofγ’precipitates with Ta addition in Re-containing Ni-based single crystal superalloys被引量：5
《Journal of Materials Science & Technology》2021年第16期68-77,共10页Jiachen Zhang Taiwen Huang Kaili Cao Jia Chen Huajing Zong Dong Wang Jian Zhang Jun Zhang Lin Liu 
the financial support by the National Natural Science Foundation of China(51631008);the National Key Research and Development Program of China(No.2016YFB0701400);Natural Science Foundation of Shaanxi Province2020JM-122。
The microstructural evolution in Re-containing Ni-based single crystal superalloys with different Tantalum(Ta)content(2 Ta,5 Ta and 8 Ta in wt%)was investigated.Ta addition significantly affected theγ’precipitate mo...
关键词：TANTALUM Ni-based superalloys Atom probe tomography Lattice misfit Coarsening kinetics 
Precipitate coarsening and its effects on the hot deformation behavior of the recently developedγ’-strengthened superalloys被引量：14
《Journal of Materials Science & Technology》2021年第8期95-104,共10页Yuting Wu Chong Li Xingchuan Xia Hongyan Liang Qiqi Qi Yongchang Liu 
supported financially by the National Natural Science Foundation of China(Nos.51474156,U1660201);the National High Technology Research and Development Program of China(No.2015AA042504)。
Recently,theγ’-strengthened superalloys are of great interests in high temperature applications due to their excellent high temperature strength which is derived from theγ’strengthening phase.For theseγ’-strengt...
关键词：γ’-strengthened superalloy Microstructure COARSENING Hot deformation 
Coarsening kinetics of γ' precipitates in a Re-containing Ni-based single crystal superalloy during long-term aging被引量：4
《Journal of Materials Science & Technology》2021年第3期1-10,共10页Jiachen Zhang Lin Liu Taiwen Huang Jia Chen Kaili Cao Xinxin Liu Jun Zhang Hengzhi Fu 
the financial support by the National Natural Science Foundation of China(51631008);the National Key Research and Development Program of China(No.2016YFB0701400);Natural Science Foundation of Shaanxi Province 2020JM-122;the National High Technology Research and Development Program of China(No.2012AA03A511)。
The morphological evolution and coarsening kinetics ofγ'precipitates in a Re-containing Ni-based single crystal superalloy were investigated during isothermal aging at 900,950 and 1000℃.After heat treatment,well-def...
关键词：Precipitate coarsening Three-dimensional atom probe(3DAP) Interfacial energy Diffusion Particle size distribution Ni-base single crystal superalloys 
Coarsening kinetics and strengthening mechanisms of core-shell nanoscale precipitates in Al-Li-Yb-Er-Sc-Zr alloy被引量：5
《Journal of Materials Science & Technology》2021年第2期197-203,共7页Yang Wang Shun Zhang Ruizhi Wu Nodir Turakhodjaev Legan Hou Jinghuai Zhang Sergey Betsofen 
supported financially by the National Natural Science Foundation of China(Nos.51671063,51771060,51871068 and 51971071);the Domain Foundation of Equipment Advance Research of 13th Five-year Plan(No.61409220118);the Fundamental Research Funds for the Central Universities(No.HEUCFG201834);the Harbin City Application Technology Research and Development Project(Nos.2015RQXXJ001 and 2017RAQXJ032);the Ph.D.Student Research and Innovation Fund of the Fundamental Research Funds for the Central Universities(No.3072019GIP1013)。
The tailored nanoparticles with a complex core/shell structure can satisfy a variety of demands, such as lattice misfit, shearability and coarsening resistance. In this research, core-shell nanoscale Al3(Yb, Er, Sc,Zr...
关键词：Al-Li alloys Aging Core-shell structure Coarsening kinetics Strengthening mechanisms 
Effects of dealloying and heat treatment parameters on microstructures of nanoporous Pd被引量：1
《Journal of Materials Science & Technology》2020年第13期123-129,共7页Y.Z.Chen X.Y.Ma W.X.Zhang H.Dong G.B.Shan Y.B.Cong C.Li C.L.Yang F.Liu 
supported financially by the National Natural Science Foundation of China(Nos.51771153,51371147,51790481 and 51431008);the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University(No.CX201825)。
Microstructures of nanoporous Pd are essentially important for its physical and chemical properties.In this work,we show that the microstructures of nanoporous Pd can be tuned by adjusting compositions of the precurso...
关键词：Nanoporous metals Microstructure DEALLOYING KINETICS COARSENING 
Multiphase-field modelling of concurrent grain growth and coarsening in complex multicomponent systems被引量：2
《Journal of Materials Science & Technology》2020年第10期215-229,共15页P.G.Kubendran Amos Ramanathan Perumal Michael Selzer Britta Nestler 
financial support of the German Research Foundation(DFG)under the project AN 1245/1;the support of the BMBF project‘Ker Solife100’;the Helmholtz programme‘Renewable energies’(35.14.01)。
Phase-field modelling of microstructural evolution in polycrystalline systems with phase-associated grains has largely been confined to continuum-field models.In this study,a multiphase-field approach,with a provision...
关键词：Concurrent grain growth and coarsening Duplex and triplex microstructure Microstructural coarsening Multiphase grain growth Multiphase-field modelling 
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