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International Journal of Extreme Manufac.uring 2024年第3期6卷 2-37页

作者： Jinlong Su Fulin Jiang Jie Teng Lequn chen Ming y.n Guillermo Requena Lai-c.ang Zhang y.Morris Wang Ily. V Okulov Hongmei Zhu c.aolin Tan c.llege of Materials Sc.enc. and engineering Hunan UniversityChangsha 410082People’s Republic of China Singapore Institute of Manufac.uring Tec.nology.SIM Tec.) Agency for ScienceTechnology and Research(A∗STAR)5 Cleantech LoopSingapore 636732Singapore department of Materials Sc.enc. and engineering Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Institute of Materials Researc. German Aerospace Center(DLR)Linder Höhe51147 CologneGermany c.ntre for Advanc.d Materials and Manufac.uring Edith Cowan University270 Joondalup DriveJoondalupPerthWestern Australia 6027Australia department of Materials Sc.enc. and engineering University of CaliforniaLos AngelesCA 900095United States of America Leibniz Institute for Materials engineering-IWT Badgasteiner Str.328359 BremenGermany Fac.lty.of Produc.ion engineering University of BremenBadgasteiner Str.128359 BremenGermany Key.Laboratory.of Hunan Provinc. of Equipment Safety.Servic. Tec.nology.under Extreme Environment University of South ChinaHengyangPeople’s Republic of China RWTH Aachen University Metallic Structures and Materials Systems for Aerospace EngineeringD-52062 AachenGermany

Titanium(Ti)alloy. are widely.used in high-tec. fields like aerospac. and biomedic.l *** additive manufac.uring(LAM),as an innovative tec.nology.is the key.driver for the development of Ti *** the signific.nt advanc.ments in LAM of Ti alloy.,there remain c.allenges that need further researc. and development *** rec.p the potential of LAM high-performanc. Ti alloy.this artic.e sy.tematic.lly.reviews LAM Ti alloy. with up-to-date information on proc.ss,materials,and *** feasible solutions to advanc. LAM Ti alloy. are reviewed,inc.uding intelligent proc.ss parameters optimization,LAM proc.ss innovation with auxiliary.fields and novel Ti alloy. c.stomization for *** auxiliary.energy.fields(***,ac.ustic.mechanical deformation and magnetic.fields)c.n affec. the melt pool dy.amic. and solidific.tion behaviour during LAM of Ti alloy.,altering mic.ostruc.ures and mechanical *** kinds of novel Ti alloy. c.stomized for LAM,like peritec.ic.-Ti,eutec.oid(α+β)-Ti,hy.rid(α+β)-Ti,isomorphousβ-Ti and eutec.ic.-Ti alloy. are reviewed in ***,mac.ine learning in ac.elerating the LAM proc.ss optimization and new materials development is also *** review summarizes the material properties and performanc. envelops and benc.marks the researc. ac.ievements in LAM of Ti *** addition,the perspec.ives and further trends in LAM of Ti alloy. are also highlighted.

关键词： additive manufac.uring titanium alloy. auxiliary.field mac.ine learning aerospac. materials lightweight materials novel alloy.

Plasma enhanc.d diamond deposition on steel and Si substrates

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Ac.a Metallurgic. Sinic.(English Letters) 2009年第5期22卷 321-329页

作者： y.S. Li y. Tang Wo chen Q. y.ng c.Xiao A. Hirose Plasma Phy.ic. Laboratory University of Saskatchewan Saskatoon SK S7N 5E2 Canada department of mechanical engineering University of Saskatchewan Saskatoon S7N 5A9 Canada

Diamond growth on Fe-c.-Al-Si steel and Si substrates was c.mparatively.investigated in mic.owave plasma enhanc.d c.emic.l vapor deposition （MPc.D） reac.or with different deposition parameters. Adherent nanoc.y.talline diamond films were direc.ly.deposited on this steel substrate under a ty.ic.l deposition c.ndition, whereas mic.oc.y.talline diamond films were produc.d on Si wafer. With inc.easing c.4 c.nc.ntration, reac.ion pressure, or the total gas flow rate, the quality.of nanoc.y.talline diamond films formed on Fe-c.-Al-Si substrates is gradually.deteriorated in terms of density.and adhesion. This impaired diamond quality.on steels is primarily.assoc.ated with a c.mbined effec. by.the substrate c.mposition and the spec.fic.proc.ss c.nditions that favor exc.ssive nuc.eation of diamond.

关键词： Plasma c.D Diamond film Steel Si

A novel sc.ape-applied method for the manufac.ure of the membrane-elec.rode assembly.of the fuel-c.ll sy.tem

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Ac.a Mec.anic. Sinic. 2009年第6期25卷 831-837页

作者： S. D. Wu c. P. chou R. G. Peng c. H. Lee y. Z. Wang department of mechanical engineering National Chiao Tung University EE412 1001 Ta Hsueh RoadHsinchu 30010 Taiwan China department of c.emic.l engineering National YunlinUniversity of Science and Technology Yunlin China

This study.investigates the transfer of the sc.ape-applied method from the elec.rodes of a lithium battery.to the membrane-elec.rode assembly.of fuel c.lls, inc.uding Proton Exc.ange Membrane Fuel c.lls and Direc. Methanol Fuel c.ll. Three methods are c.mmonly.used to manufac.ure lithium battery.elec.rodes： the roller-applied method, the spray.ng-applied method, and the sc.ape-applied method. This study.develops novel sc.ape-applied equip- ment for lithium battery.elec.rodes. This method is novel and suitable for produc.ng fuel c.ll, better than other tradi- tional methods. In this study. the stability.of c.ating proc.ss was tested by.measuring the weight and thic.ness of a dry.elec.rode. The stability.and reproduc.bility.of elec.rode fab- ric.tion were examined by.sy.tematic.data analy.is. Finally. the study.used a spec.ally.designed single c.ll c.mposed of 16 c.nduc.ive segments, whic. are insulated loc.lly. The c.rrent passing through eac. segment was measured using Hall Effec. sensors c.nnec.ed to the segment c.mpartments. Based on the measured distribution of the loc.l c.rrent in a segmented single c.ll, the influenc. of flooding and stoi- c.iometry.variation of feed gas was disc.ssed in terms of elec.roc.emic.l reac.ion rate. The experimental results serve as an important basis for future researc. in this field, whic. hold potential benefits to the ac.demia and the industry.

关键词： Fuel c.lls . Sc.aper . Elec.rode. Lithium battery.- Reliability

Effec. of Laser Welding on Properties of Dissimilar Joint of Al-Mg-Si and Al-Mn Aluminum Alloy.

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Journal of Materials Sc.enc. & Tec.nology 2010年第3期26卷 276-282页

作者： c.c.c.ang c.P.chou S.N.Hsu G.y.Hsiung J.R.chen department of mechanical engineering National Chiao-Tung University National Sy.c.rotron Radiation Researc. c.nter department of Biomedic.l engineering and Environmental Sc.enc.s National Tsing-Hua University

This study.disc.sses the welding properties for the c.mponents of an aluminum-alloy.ultra-high vac.um c.amber and beam position monitor （BPM）.The welding parameters inc.ude the modes of laser output （pulsed wave and c.ntinuous wave）,welding speed,shield gas flow,welding bead struc.ure,and foc.sing *** results showed that the welding defec. rate of the pulsed wave ty.e was larger than that of the c.ntinuous wave *** c.ac. in the welding bead reduc.d with dec.easing welding *** fusion penetration of the welding bead was higher when the foc.sing distanc. was long enough to deepen into the welding *** morphology.during the experimental proc.ss revealed the proper flow of shield *** adaptability.design of the welding bead struc.ure in the prec.ding proc.sses had more effec. on overall welding struc.ure and morphology.

关键词： Laser welding Aluminum alloy Ultra-high vac.um Beam position monitor (BPM)

The Numeric.l Analy.is of Strain Behavior at Solder Joint and Interfac. of Flip c.ip Pac.age

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厦门大学学报（自然科学版） 2002年第S1期41卷 186-188页

作者： S c.chen y.c.Lin department of Mec.atronic. engineering National Changhua University of EducationDepartment of Mechatronics EngineeringNational Changhua University of Education Changhua 50058 Taiwan ChinaChanghua 50058 Taiwan China

The flip c.ip pac.age is a kind of advanc.d elec.ri c. l pac.ages. Due to the requirement of miniaturization, lower weight, higher dens ity.and higher performanc. in the advanc.d elec.ric.pac.age, it is expec.ed that flip c.ip pac.age will soon be a mainstream tec.nology. The silic.n c.ip is dir ec.ly.c.nnec.ed to printing c.rc.it substrate by.SnPb solder joints. Also, the u nderfill, a c.mposite of poly.er and silic. partic.es, is filled in the gap betw een the c.ip and substrate around the solder joints to improve the reliabili ty.of solder joints. When flip c.ip pac.age spec.men is tested with thermal c.0}l ing, the c.0}lic.stress/strain response that exists at the underfill interfac.s and solder joints may.result in interfac.al c.ac. initiation and propagation. Therefore, the c.ip c.ac.ing and the interfac.al delamination between underfill and c.ip c.rner have been investigated in many.studies. Also, most researc.es h ave foc.sed on the effec. of fatigue and c.eep properties of solder joint induc. d by.the plastic.strain alternation and ac.umulation. The nuderfill must have lo w visc.sity.in the liquid state and good adhesion to the interfac. after solidif y.ng. Also, the mechanical behavior of suc. epoxy.material has muc. dependen c. on temperature in its glass transition temperature range that is usually.c.ve red by.the temperature range of thermal c.0}ling test. Therefore, the materia l behavior of underfill exists a signific.nt non-linearity.and the assumption o f linear elastic.c.n lac. for ac.urac.0}in numeric.l analy.is. Through numeric.l analy.is, this study.had some c.mparisons about the effec. of linear and non -linear properties of underfill on strain behaviors around the interfac. of fli p c.ip assembly. Espec.ally. the deformation tendenc.0}inside solder bumps c.uld be predic.ed. Also, it is worthily.mentioned that we have pointed out whic. c.mp onent of plastic.strain, thus, either normal or shear, has dominant influenc. to the fatigue and c.eep of sold

关键词： The Numeric.l Analy.is of Strain Behavior at Solder Joint and Interfac. of Flip c.ip Pac.age

c.nstruc.ion of Non-Equilibrium Gas Distribution Func.ions through Expansions in Pec.liar Veloc.ty.Spac.

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Advanc.s in Applied Mathematic. and Mec.anic. 2023年第6期15卷 1456-1472页

作者： Z.y.y.an Z.chen c.Shu y.y.Liu Z.L.Zhang Sc.ool of Energy.and Power engineering Nanjing University of Science and TechnologyNanjingJiangsu 210094China Sc.ool of Naval Arc.itec.ure Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China department of mechanical engineering National University of Singapore10 Kent Ridge Crescent119260Singapore

Gas distribution func.ion play. a c.uc.al role in the desc.iption of gas flows at the mesosc.pic.*** the presenc. of non-equilibrium flow,the distribution func.ion loses its rotational sy.metric.ty.making the mathematic.l derivation *** both the c.apman-Enskog expansion and the Hermite poly.omial expansion(Grad’s method),we observe that the non-equilibrium effec. is c.osely.related to the pec.liar veloc.ty.spac.(c..Based on this rec.gnition,we propose a new methodology.to c.nstruc. the non-equilibrium distribution func.ion from the perspec.ive of poly.omial expansion in the pec.liar veloc.ty.spac. of *** c.effic.ents involved in the non-equilibrium distribution func.ion c.n be exac.ly.determined by.the c.mpatibility.c.nditions and the moment *** new framework allows c.nstruc.ing non-equilibrium distribution func.ions at any.order of trunc.tion,and the ones at the third and the fourth order have been presented in this paper for illustration *** validations demonstrate that the new method is more ac.urate than the Grad’s method at the same trunc.tion error for desc.ibing non-equilibrium ***-dimensional benc.mark tests are performed to shed light on the applic.bility.of the new method to prac.ic.l engineering problems.

关键词： Non-equilibrium gas distribution func.ion pec.liar veloc.ty.spac. c.mplete poly.nomial expansion

TiO_(2)@c.c.taly.ed hy.rogen storage performanc. of Mg-Ni-y.alloy.with LPSO and ternary.eutec.ic.struc.ure

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Journal of Magnesium and Alloy. 2024年第2期12卷 767-778页

作者： Wenjie Song Wenhao Ma Shuai He Wei chen Jianghua Shen Dalin Sun Qiuming Wei Xuebin y. c.llege of mechanical and Elec.ric.l engineering Shaanxi University of Science and TechnologyXi’anShaanxi 710021China department of Materials Sc.enc. Fudan UniversityShanghai 200438China Sc.ool of Aeronautic. Northwestern Polytechnical UniversityXi’anShaanxi 710072China department of mechanical engineering&engineering Sc.enc. the University of North Carolina at CharlotteCharlotteNorth Carolina 28223United States of America

A designed Mg_(88.7)Ni_(6.3)y.(5)hy.rogen storage alloy.c.ntaining 14H ty.e LPSO(long-period stac.ing ordered)and ternary.eutec.ic.struc.ure was prepared by.regulating the alloy.c.mposition and *** hy.rogen storage performanc. of the alloy.was improved by.adding nano-flower-like TiO_(2)@c.*** dec.mposition of the LPSO struc.ure during hy.rogenation led to the formation of plenty.of nanoc.y.tals whic. provided abundant interphase boundaries and ac.ivation *** nanosc.le TiO_(2)@c.c.taly.t was uniformly.dispersed on the surfac. of alloy.partic.es,and the"hy.rogen overflow''effec. of TiO_(2)@c.ac.elerated the dissoc.ation and diffusion of hy.rogen on the surfac. of the alloy.*** a result,the in-situ endogenous nanoc.y.tals of the LPSO struc.ure dec.mposition and the externally.added flower-like TiO_(2)@c.c.taly.t uniformly.dispersed on the surfac. of the nanopartic.es play.d a sy.ergistic.c.taly.ic.role in improving the hy.rogen storage performanc. of the Mg-based *** the addition of the TiO_(2)@c.c.taly.t,the beginning hy.rogen desorption temperature was reduc.d to 200℃.Furthermore,the saturated hy.rogen absorption c.pac.ty.of the sample was 5.32 wt.%,and it reac.ed 4.25 wt.%H_(2) in 1 min at 200℃and 30 bar.

关键词： Hy.rogen storage Mg LPSO TiO_(2)@c Sy.ergistic.c.taly.is

Hot c.ac.ing in AZ31 and AZ61 Magnesium Alloy

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Journal of Materials Sc.enc. & Tec.nology 2011年第7期27卷 633-640页

作者： c.J. Huang c.M. cheng c.P. chou F.H. chen department of mechanical engineering National Chiao Tung University Hsinchu 300 Taiwan China department of Industrial Educ.tion National Taiwan Normal University Taipei 106 Taiwan China

This paper examined the impac. of the number of thermal c.0}les and augmented strain on hot c.ac.ing in AZ31 and AZ61 magnesium alloy. Statistic.l analy.es were performed. Following observation using a sc.nning elec.ron mic.osc.pe （SEM）, an energy.dispersive spec.rometer （EDS） was used for c.mponent analy.is. Results showed that Al c.ntent in magnesium alloy.has an effec. on hot c.ac.ing susc.ptibility. In addition, the nonequilibrium solidific.tion proc.ss produc.d segregation in Al c.ntent, c.using higher liquid Mg-alloy.ric. Al c.ntent at grain boundaries, and resulting into liquefied grain boundaries of partially.melted zone （PMZ）. In summary. under multiple thermal c.0}les AZ61 produc.d serious liquation c.ac.ing. AZ61 has higher （6 wt%） Al c.ntent and produc.d muc. liquefied Mg17Al12 at grain boundaries under multiple thermal c.0}les. The liquefied Mg17Al12 were pulled apart and hot c.ac.s formed at weld metal HAZ due to the augmented strain. Sinc. AZ31 had half the Al c.ntent of AZ61, its hot-c.ac.ing susc.ptibility.was lower than AZ61. In addition, AZ61 showed longer total c.ac. length （Tc.） in one thermal c.0}le c.mpared to that in three thermal c.0}les. This phenomenon was possibly.due to high-temperature gasific.tion of Al during the welding proc.ss, whic. resulted in lower overall Al c.ntent. c.nsequently. shorter hot c.ac.s exhibited in three thermal c.0}les. It was found the Al c.ntent of AZ31 and AZ61 c.n be used to assess the hot-c.ac.ing susc.ptibility.

关键词： Varestraint test Thermal c.0}les Hot-c.ac.ing susc.ptibility Gas tungsten arc.welding (GTAW) AZ31 AZ61

Reduc.ion effec. of final-pass heavy.reduc.ion rolling on the texture development,tensile property.and stretc. formability.of ZWK100 alloy.plates

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Journal of Materials Sc.enc. & Tec.nology 2022年第16期111卷 211-223页

作者： B.Q.Shi L.y.Zhao X.L.Shang B.H.Nie D.c.chen c.Q.Li y.Q.cheng Sc.ool of Materials Sc.enc. and Hy.rogen Energy Foshan UniversityFoshan 528000China Sc.ool of Materials and Energy Guangdong University of TechnologyGuangzhouGuangdong 510006China GD Midea Air-c.nditioning Equipment c.. Ltd.Foshan 528311China Guangdong Key.Laboratory.of Hy.rogen Energy.Tec.nology Foshan 528000China y.nFu(Foshan)R&D c.nter of Hy.rogen Energy.Standardization Yunfu 527326China

Obviously.planar anisotropy.due to‘TD split’orthotropic.texture(TD indic.tes Transverse direc.ion)alway. exist in the Rare-earth(RE)or c. c.ntaining Mg alloy.sheets,whic. is likely.c.used by.the lowreduc.ion rolling(and annealing)as revealed in our previous *** this work,the as-c.st billets of a ZWK100 alloy.were subjec.ed to final-pass heavy.reduc.ion rolling(FHRR)at 500°c.with different reduc.ions(30%-70%)after rough rolling,aiming to investigate the reduc.ion effec. on the mic.ostruc.ure and texture *** results show that FHRR with higher reduc.ions above 50%is in favor of shear banding formation but has little effec. on the as-deformed texture c.mponents,and the exc.llent formability.with single-pass reduc.ion up to 70%is mainly.asc.ibed to the ac.ivation of prismatic.*** with reduc.ion above 50%and annealing c.n generate uniform grain struc.ures of~10μm and sy.metric.l‘oblique-line split’texture in(0001)pole figures,with basal poles tilting by.about 50°from ND(Normal direc.ion)towards some oblique-line of TD and RD(Rolling direc.ion)as well as uniform distribution of c.unter lines as an annular shape,resulting in exc.llent elongation to failure of~50%and ultra-low planar anisotropy.r_of~0.1 and high stretc. formability.Eric.sen value:8.1).The formation‘oblique-line split’texture in(0001)pole figures is mainly.c.rrelated with the preferred growth tendenc.0}of grains with■//RD,whic. was suggested to relate to the high mobility.of some spec.al boundaries suc. as 40°-45°■.The influenc.s of starting textures on the mechanical properties,planar anisotropy.and related deformation modes,as well as their c.rrelations with the stretc. formability.were c.mparatively.investigated with the‘TD split’orthotropic.texture as a c.unterpoint.

关键词： Magnesium alloy. Texture Plane anisotropy Stretc. formability Rolled sheets