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16篇 您的检索式:作者名="Lv Yaohui"
    题名 作者 年代 出处 被引量
1Microstructural Evolution and Mechanical Properties of Inconel 625 Alloy during Pulsed Plasma Arc Deposition Process显示文摘Pulsed plasma arc deposition(PPAD),which combines pulsed plasma cladding with rapid prototyping,is a promising technology for manufacturing near net shape components due to its superiority in cost and convenience of processing.In the present research,PPAD was successfully used to fabricate the Ni-based superalloy Inconel 625 components.The microstructures and mechanical properties of deposits were investigated by scanning electron microscopy(SEM),optical microscopy(OM),transmission electron microscopy(TEM) with energy dispersive spectrometer(EDS),microhardness and tensile testers.It was found that the as-deposited structure exhibited homogenous columnar dendrite structure,which grew epitaxially along the deposition direction.Moreover,some intermetallic phases such as Laves phase,minor MC(NbC, TiC) carbides and needle-likeδ-Ni_3Nb were observed in y-Ni matrix.Precipitation mechanism and distribution characteristics of these intermetallic phases in the as-deposited 625 alloy sample were analyzed.In order to evaluate the mechanical properties of the deposits,microhardness was measured at various location (including transverse plane and longitudinal plane).The results revealed hardness was in the range of 260—285 HV_(0.2).In particular,microhardness at the interface region between two adjacent deposited layers was slightly higher than that at other regions due to highly refined structure and the disperse distribution of Laves particles.Finally,the influence of precipitation phases and fabrication strategies on the tensile properties of the as-deposited samples was investigated.The failure modes of the tensile specimens were analyzed with fractography.Fujia Xu Yaohui Lv Yuxin Liu Fengyuan Shu Peng He Binshi Xu 2013Journal of Materials Science & Technology2013,29,5:33
2Recent advances in anode materials for potassium-ion batteries:A review显示文摘Potassium-ion batteries(PIBs)are appealing alternatives to conventional lithium-ion batteries(LIBs)because of their wide potential window,fast ionic conductivity in the electrolyte,and reduced cost.However,PIBs suffer from sluggish K+reaction kinetics in electrode materials,large volume expansion of electroactive materials,and the unstable solid electrolyte interphase.Various strategies,especially in terms of electrode design,have been proposed to address these issues.In this review,the recent progress on advanced anode materials of PIBs is systematically discussed,ranging from the design principles,and nanoscale fabrication and engineering to the structure-performance relationship.Finally,the remaining limitations,potential solutions,and possible research directions for the development of PIBs towards practical applications are presented.This review will provide new insights into the lab development and real-world applications of PIBs.Lianbo Ma Yaohui Lv Junxiong Wu Chuan Xia Qi Kang Yizhou Zhang Hanfeng Liang Zhong Jin 2021Nano Research2021,14,12:6
3Remanufacturing Shaping System Based on Pulsed Plasma Arc Welding显示文摘Based on the pulsed plasma arc welding(PPAW),a rapid remanufacturing shaping system,including a structured light scanning reverse engineering(RE)system,a robot system and a PPAW source system have been developed.The new rapid remanufacturing shaping system can rapidly and accurately repair the worn parts with different damaged degrees and thus extend their life cycle.In the present paper,the whole process of repairing worn parts is described.Firstly,the scanning model of a worn part is obtained by using RE system based on reconstructing approach.Compared with standard CAD model in the undamaged setting,the surface profile and the extent of damage area are obtained.Secondly,the weld repair path is designed by slicing the point cloud model of damage area.This path consists of multilayer parallel lines that produce parallel overlapped weld beads which cover the damaged area.By off-line programming techniques,the robot executable program as document format is transmitted to the robot controller for repairing worn parts.Finally,the weld repair experiments on worn steel plane plate and damaged column are performed to evaluate the remanufacturing system.Xu Fujia Xu Binshi Lv Yaohui Xiang, Wu Peng, He Liu Yuxin 2012稀有金属材料与工程2012,41,S1:3
4Ion association tailoring SEI composition for Li metal anode protection显示文摘Electrolyte additives play an important role in suppressing lithium dendrites through tailoring the composition/property of the SEI,however lacking of additives can achieve high performances both in ether and carbonate electrolytes hinders further enhancement of the high voltage lithium^-metal batteries.Here,lithium perchlorate(LiClO4)has been presented as an excellent additive to meet the above requirements.An optimized chemical composition of SEI can be achieved through the formation of ionic association.Our results indicate that the LiClO4 behaves like a catalyst,which promotes LiTFSI to form a better SEI to inhibit further reaction.Superior coulombic efficiencies and cycling performances were obtained both in ether and carbonate electrolytes.This study paves a new pathway for designing bi-soluble additives for safe lithium metal batteries.Yitao He Yaohui Zhang Peng Yu Fei Ding Xifei Li Zhihong Wang Zhe Lv Xianjie Wang Zhiguo Liu Xiqiang Huang 2020Journal of Energy Chemistry2020,29,6:2
5Influence of a graphite shell on the thermal, magnetic and electromagnetic characteristics of Fe nanoparticles显示文摘Xianguo Liu Siu Wing Or Yuping Sun Weihuo Li Yizhu He Guohui Zhu Chuangui Jin Qun Yan Yaohui Lv Siu Lau Ho Shengsheng Zhao 2013Journal of Alloys and Compounds2013,,:1
6Dispersion of concentrated aqueous neodymia–yttria–alumina mixture with ammonium poly(acrylic acid) as dispersant显示文摘Yaohui Lv Wei Zhang Jie Tan Yuanhua Sang Haiming Qin Jinlian Hu Liuniu Tong Hong Liu Jiyang Wang Robert I Boughton 2010Journal of Alloys and Compounds2010,,6:1
7Microstructure and tribological properties of layer deposited bymicro-plasma are welding on worn gear 显示文摘Liu Cunlong Lv Yaohui Xu Binshi 2008Key Engineering Materials2008,,:1
8Chemical assembly of silver nanoparticles on stainless steel for antimicrobial applications 显示文摘CHEN Limei ZHENG Lin LV Yaohui 2010Surface & Coatings Technology2010,204,1:1
9Yttrium aluminum garnet nanoparticles synthesized by nitrate decomposition and their low temperature densification behavior 显示文摘SANG Yuanhua LIU Hong LV Yaohui 2010J Alloys Compd2010,490,45:1
10Dispersion of concen- trated aqueous neodymia-yttria-alumina mixture with ammo- nium poly(acrylic acid) as dispersant显示文摘Lv Yaohui Zhang Wei Tan Jie 2011J Alloys Compd2011,509,:1
11Review Article Electrocatalysts in lithium-sulfur batteries显示文摘Lithium-sulfur(Li-S)batteries with the merits of high theoretical capacity and high energy density have gained significant attention as the next-generation energy storage devices.Unfortunately,the main pressing issues of sluggish reaction kinetics and severe shuttling of polysulfides hampered their practical application.To overcome these obstacles,various strategies adopting high-efficient electrocatalysts have been explored to enable the rapid polysulfide conversions and thereby suppressing the polysulfide shuttling.This review first summarizes the recent progress on electrocatalysts involved in hosts,interlayers,and protective layers.Then,these electrocatalysts in Li-S batteries are analyzed by listing representative works,from the viewpoints of design concepts,engineering strategies,working principles,and electrochemical performance.Finally,the remaining issues/challenges and future perspectives facing electrocatalysts are given and discussed.This review may provide new guidance for the future construction of electrocatalysts and their further utilizations in high-performance Li-S batteries.Shanying Wang Ziwei Wang Fangzheng Chen Bo Peng Jie Xu Junzhe Li Yaohui Lv Qi Kang Ailin Xia Lianbo Ma 2023Nano Research2023,16,4:1
12Co 3 O 4 /C nanocapsules with onion-like carbon shells as anode material for lithium ion batteries显示文摘Xianguo Liu Siu Wing Or Chuangui Jin Yaohui Lv Weihuo Li Chao Feng Feng Xiao Yuping Sun 2013Electrochimica Acta2013,,:1
13Residual stress modeling of narrow gap welded joint of aluminum alloy by cold metal transferring procedure 显示文摘Fengyuan Shu Yaohui Lv Yuxin Liu wt al 2014Construction and Building Materials2014,54,:1
14Nitrogen/sulphur dual-doped hierarchical carbonaceous fibers boosting potassium-ion storage显示文摘The carbon materials as anode electrodes have been widely studied for potassium ion batteries(PIBs).However,the large size of potassium ions prevents their intercalation/deintercalation,resulting in poor storage behaviors.Herein,a novel design of N/S codoped hierarchical carbonaceous fibers(NSHCF)formed from nanosheets self-assembled by catalyzing Aspergillus niger with Sn is reported.The asprepared NSHCF at 600℃(NSHCF-600)exhibits a high reversible capacity of 345.4 m Ah g^(-1) at 0.1 A g^(-1) after 100 cycles and an excellent rate performance of 124.5 m Ah g^(-1) at 2 A g^(-1).The excellent potassium storage performance can be ascribed to the N/S dual-doping,which enlarges interlayer spacing(0.404 nm)and introduces more defects.The larger interlayer spacing and higher pyridinic N active sites can promote K ions diffusion and storage.In addition,the ex situ transmission electron microscopy reveals the high reversibility of potassiation/depotassiation process and structural stability.Junzhi Li Junming Cao Xifei Li Junhua Hu Yaohui Zhang Hirbod Maleki Kheimeh Sari Chunxiao Lv IgorVZatovsky Wei Han 2021Journal of Energy Chemistry2021,30,4:1
15Microstructure and tribo-logical properties of layer deposited by micro-plasma arc weld-ing on worn gear显示文摘Liu Cunlong Lv Yaohui Xu Binshi 2008Key Engineering Materials2008,,373374:1
16Microstrueture and tribological properties of layer deposited by micro-plasma arc weldhag on worn gear 显示文摘Liu Cunlong Lv Yaohui Xu Binshi 2008Key Engineering Materials2008,,373374:1
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