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A novel multi-channel porous structure facilitating mass transport towards highly efficient alkaline water electrolysis

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Journal of Energy Chemistry 2024年第6期93卷 511-518,I0013页

作者： Xinge Jiang Vasileios Kyriakou Chen Song Xianbin Wang Sophie Costil Chunming Deng Taikai Liu Tao Jiang hanlin liao Universitéde technologie de Belfort Montbéliard Centre national de la recherche scientifiqueLaboratoire Interdisciplinaire Carnot de BourgogneBelfort 90010France Department of Chemical Engineering Engineering and Technology Institute Groningen(ENTEG)University of GroningenGroningen 9747 AGThe Netherlands The Institute of New Materials Guangdong Academy of ScienceGuangzhou 510650GuangdongChina

An advantageous porous architecture of electrodes is pivotal in significantly enhancing alkaline water electrolysis(AWE)efficiency by optimizing the mass transport *** effect becomes even more pronounced when aiming to achieve elevated current ***,we employed a rapid and scalable laser texturing process to craft novel multi-channel porous ***,the obtained electrodes exhibit the lowest Tafel slope of 79 mV dec^(-1)(HER)and 49 mV dec^(-1)(OER).As anticipated,the alkaline electrolyzer(AEL)cell incorporating multi-channel porous electrodes(NP-LT30)exhibited a remarkable improvement in cell efficiency,with voltage drops(from 2.28 to 1.97 V)exceeding 300 mV under 1 A cm^(-1),compared to conventional perforated Ni plate *** enhancement mainly stemmed from the employed multi-channel porous structure,facilitating mass transport and bubble dynamics through an innovative convection mode,surpassing the traditional convection ***,the NP-LT30-based AEL cell demonstrated exceptional durability for 300 h under 1.0 A cm^(-2).This study underscores the capability of the novel multi-channel porous electrodes to expedite mass transport in practical AWE applications.

关键词： Alkaline water electrolysis Mass transport Bubble dynamics Innovative convection mode Multi-channel porous structure

Al matrix composites fabricated by solid-state cold spray deposition:A critical review

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Journal of Materials Science & Technology 2021年第27期86卷 20-55页

作者： Xinliang Xie Shuo Yin Rija-nirina Raoelison Chaoyue Chen Christophe Verdy Wenya Li Gang ji Zhongming Ren hanlin liao ICB UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUTBMF-90010BelfortFrance Univ.Lille CNRSINRAECentrale LilleUMR 8207UMET-UnitéMatériaux et TransformationsF-59000LilleFrance Department of Mechanical and Manufacturing Engineering Trinity College DublinThe University of DublinParsons BuildingDublin 2Ireland Institute of Mechanics Materials and Civil EngineeringUC LouvainLouvain-la-NeuveBelgium State Key Laboratory of Advanced Special Steels School of Materials Science and EngineeringShanghai UniversityShanghai200444China State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of Friction Welding TechnologiesNorthwestern Polytechnical UniversityXi’an710072China

Cold spraying(CS),or cold gas dynamic spray(CGDS),is an emerging solid-state powder deposition process,allowing fast and mass production and restoration of metallic *** of metal matrix composites(MMCs)has attracted increasing attention from academia and industry over the last decades,especially in the area of Al matrix composites(AMCs),which have demonstrated a high potential for applications in aerospace,automotive,and electronics *** article aims to summarize the recent development of CS-processed AMCs in terms of composite powder preparation,deposition processing,microstructure evolution,mechanical and corrosion ***,this review also reports the relevant research progress with the focus on post-treatments of the AMCs for CS additive manufacturing applications including heat treatment,hot rolling,and friction stir ***,the challenges and perspectives on the fabrication of advanced AMCs by CS are addressed.

关键词： Al matrix composites Solid-state cold spraying Additive manufacturing Post-treatments

Cold spray additive manufacturing of Invar 36 alloy:microstructure,thermal expansion and mechanical properties

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Journal of Materials Science & Technology 2021年第13期72卷 39-51页

作者： Chaoyue Chen Yingchun Xie Longtao Liu Ruixin Zhao Xiaoli Jin Shanqing Li Renzhong Huang Jiang Wang hanlin liao Zhongming Ren State Key Laboratory of Advanced Special Steels School of Materials Science and EngineeringShanghai UniversityShanghai 200444China Guangdong Academy of Science Guangdong Institute of New MaterialsNational Engineering Laboratory for Modern Materials Surface Engineering TechnologyThe Key Lab of Guangdong for Modern Surface Engineering TechnologyGuangzhou 510651China Research Institute Baoshan Iron&Steel Co.LtdShanghai 200431China ICB UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUTBMF-90010 BelfortFrance

In this work,the Invar 36 alloys were manufactured using cold spray(CS)additive manufacturing *** systematic investigations were made on the microstructural evolution,thermal expansion and mechanical properties under as-sprayed(AS)and heat-treated(HT)***(X-ray diffraction)and ICP-AES(inductively coupled plasma atomic emission spectroscopy)analyses show that no phase transformation,oxidation,nor element content change have *** X-ray computed tomography(XCT)exhibited a near fully dense structure with a porosity of 0.025%in the helium-produced sample under as-sprayed condition,whereas the nitrogen-produced samples produced at 5 MPa and 800℃show more irregular pore ***-AS sample shows a more prominent grain refinement than that of nitrogen samples due to the more extensive plastic *** post heat-treatment exhibited a promoted grain growth,inter-particle diffusion,as well as the formation of annealing ***25℃and 200℃,the nitrogen samples possessed lower CTE(coefficient of thermal expansion)values(1.53×10^(-6)/℃)compared with those produced by casting and laser additive *** He-AS samples exhibited a noticeable negative CTE value between 25℃and 200℃,which may due to the significant compressive residual stress(-272 MPa)compensating its displacement with temperature increase during CTE *** N2-HT and He-HT Invar 36 samples present a notable balance between strength and *** conclusion,the CS technique can be considered as a potential method to produce the Invar36 component with high thermal and mechanical performance.

关键词： Cold spray Additive manufacturing Invar 36 alloy Coefficient of thermal expansion Tensile test

Finished surface morphology, microstructure and magnetic properties of selective laser melted Fe-50wt% Ni permalloy

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Acta Metallurgica Sinica(English Letters) 2022年第9期35卷 1439-1452页

作者： Shuohong Gao Xingchen Yan Cheng Chang Xinliang Xie Qingkun Chu Zhaoyang Deng Bingwen Lu Min Liu hanlin liao Nouredine Fenineche ICB UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUTBM90010BelfortFrance National Engineering Laboratory for Modern Materials Surface Engineering Technology The Key Lab of Guangdong for Modern Surface Engineering TechnologyInstitute of New MaterialsGuangdong Academy of SciencesGuangzhou510651China Institute of Mechanics Materials and Civil EngineeringUC LouvainLouvain-la-NeuveBelgium

This work focuses on the structure and magnetic properties of Fe-50wt% Ni permalloy manufactured from the pre-alloyed powder by selective laser melting (SLM). The selective laser melted (SLMed) alloys were characterized by a 3D profilometer,optical microscope, scanning electron microscope, X-ray diffraction, etc. The effects of the volume energy density of laser(LVED) on structure, and magnetic properties with coercivity ( H), remanence ( B), and power losses ( P), were evaluated and discussed systematically. The results show that the relative porosity rate and the surface roughness of the SLMed specimens decreased with the increase in LVED. Only the γ-(FeNi) phase was detected in the X-ray diffraction patterns of the SLMed permalloys fabricated from the different LVEDs. Statistical analysis of optical microscopy images indicated that the grain coarsened at higher LVED. Furthermore, the microstructure of the SLMed parts was a typical columnar structure with an oriented growth of building direction. The highest microhardness reached 198 HV. Besides, the magnetic properties including B, H, and Pof SLMed samples decreased when the LVED ranged from 33.3 to 60.0 J/mm ~3 firstly and then increased while LVED further up to 93.3 J/mm, which is related to the decrease in porosity and the increase in grain size, while the higher residual stress and microcracks presented in the samples manufactured using very high LVED. The observed evolution of magnetic properties and LVED provides a good compromise in terms of reduced porosity and crack formation for the fabrication of SLMed Fe-50 wt% Ni permalloy. The theoretical mechanism in this study can offer guidance to further investigate SLMed soft magnetic alloys.

关键词： Selective laser melting Fe-50wt%Ni permalloy Finished surface morphology Microstructural evolution Magnetic properties

Selective laser melting(SLM)of CX stainless steel:Theoretical calculation,process optimization and strengthening mechanism

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Journal of Materials Science & Technology 2021年第14期73卷 151-164页

作者： Dongdong Dong Cheng Chang Hao Wang Xingchen Yan Wenyou Ma Min Liu Sihao Deng Julien Gardan Rodolphe Bolot hanlin liao Guangdong Academy of Sciences Guangdong Institute of New MaterialsNational Engineering Laboratory for Modern Materials Surface Engineering TechnologyThe Key Lab of Guangdong for Modern Surface Engineering TechnologyGuangzhou510651China ICD-LASMIS UMR CNRS 6281University of Technology of Troyes12 rue Marie CurieCS 4206010004Troyes CedexFrance EPF Ecole d’ingenieurs2 rue Fernand SastreTroyesFrance ICB-PMDM UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUBFCF-71200Le Creusot/UTBMF-71200.Le Creusot/UTBMF-90010BelfortFrance

In the present work,selective laser melting(SLM)technology was utilized for manufacturing CX stainless steel samples under a series of laser *** effect of laser linear energy density on the microstructure characteristics,phase distribution,crystallographic orientation and mechanical properties of these CX stainless steel samples were investigated theoretically and experimentally via scanning electron microscope(SEM),X-ray diffraction(XRD),electron backscatter diffraction(EBSD)and transmission electron microscope(TEM).Based on the systematic study,the SLM CX stainless steel sample with best surface roughness(Ra=4.05±1.8μm)and relative density(Rd=99.72%±0.22%)under the optimal linear density(η=245 J/m)can be *** CX stainless steel was primarily constituted by a large number of fine martensite(α’phase)structures(i.e.,cell structures,cellular dendrites and blocky grains)and a small quantity of austenite(γphase)*** pre ferred crystallographic orientation(i.e.,direction)can be determined in the XZ plane of the SLM CX ***,under the optimal linear energy density,the good combinations with the highest ultimate tensile strength(UTS=1068.0%±5.9%)and the best total elongation(TE=15.70%±0.26%)of the SLM CX sample can be *** strengthening dominates the strengthening mechanism of the SLM CX sample in as-built state.

关键词： Selective laser melting CX stainless steel Forming quality Mechanical property Strengthening Mechanism

Selective Laser Melting of Novel SiC and TiC Strengthen 7075 Aluminum Powders for Anti-Cracks Application

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Journal of Materials Science and Chemical Engineering 2024年第4期12卷 136-142页

作者： Yingjie Li hanlin liao Department of Materials Science and Engineering UTBM Belfort France

The aerospace and military sectors have widely used AA7075, a type of 7075 aluminum alloy, due to its exceptional mechanical performance. Selective laser melting (SLM) is a highly effective method for producing intricate metallic components, particularly in the case of aluminum alloys like Al-Si-Mg. Nevertheless, the production of high-strength AA7075 by SLM is challenging because of its susceptibility to heat cracking and elemental vaporization. In this study, AA7075 powders were mechanically mixed with SiC and TiC particles. Subsequently, this new type of AA7075 powder was effectively utilized in green laser printing to create solid components with fine-grain strengthening microstructures consisting of equiaxial grains. These as-printed parts exhibit a tensile strength of up to 350 MPa and a ductility exceeding 2.1%. Hardness also increases with the increasing content of mixed powder, highlighting the essential role of SiC and TiC in SLM for improved hardness and tensile strength performance. .

关键词： Selective Laser Melting (SLM) AA 7075 Fine Grain Strengthen TiC SiC Green Laser

A novel approach for fabricating a CNT/AlSi composite with the self-aligned nacre-like architecture by cold spraying

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Nano Materials Science 2019年第2期1卷 137-141页

作者： Xinliang Xie Chaoyue Chen Gang Ji Run Xu Zhanqiu Tan Yingchun Xie Zhiqiang Li hanlin liao ICB UMR 6303 CNRS Univ. Bourgogne Franche-Comte UTBM F-90010 Belfort France Univ. Lille CNRS INRA ENSCL UMR 8207 - UMET - Unite Materiaux et Transformations F-59000 Lille France State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

A fully dense carbon nanotubes (CNTs) reinforced AlSi matrix composite with the multiscale nacre-like architecture was designed and successfully realized by flake powder metallurgy followed by cold spraying (CS). The nanolaminated and ultrafine-grained structure initially created in the CNT/AlSi flaky powder was perfectly conserved, due to the typical ‘cold’ feature of CS. As discussed based on finite element analysis and single splat observation, self-alignment behavior of the flaky powders during impact also allowed the formation of the microlaminated structure. Hence, the scalable CS technique opens a new avenue for bioinspired material design and fabrication with complex shape.

关键词： Additive manufacturing Cold spray Metal matrix composites Nanolaminated structure Carbon nanotubes

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基于冷喷涂的多孔钛与钛合金的制备与表征

稀有金属材料与工程 2009年第A03期38卷 260-263页

作者：李文亚 hanlin liao C. Coddet 西北工业大学摩擦焊接陕西省重点实验室陕西西安710072 LERMPS Universite de Technologie de Belfort-Montbeliard (Site de Sevenans) 90010 Belfort France

基于冷喷涂技术的优点,结合喷涂后热处理开发了一种新的多孔钛与钛合金制备工艺。研究了热处理对所制备多孔钛与钛合金块材的组织与结合强度的影响。结果表明,所得多孔块材的气孔率与粉末本身及喷涂条件有关,气孔率在10%～50%之间变化... 详细信息

基于冷喷涂技术的优点,结合喷涂后热处理开发了一种新的多孔钛与钛合金制备工艺。研究了热处理对所制备多孔钛与钛合金块材的组织与结合强度的影响。结果表明,所得多孔块材的气孔率与粉末本身及喷涂条件有关,气孔率在10%～50%之间变化。热处理态的气孔率代表了冷喷涂制备块材的实际气孔率。所得多孔块材喷涂态的结合强度在10～30MPa之间变化。热处理后粒子间接触界面通过扩散达到冶金结合,多孔块材的结合强度均明显增加(超过55MPa)。

关键词：冷喷涂真空热处理多孔材料钛钛合金

Ductile and high strength Cu fabricated by solid-state cold spray additive manufacturing

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Journal of Materials Science & Technology 2023年第3期134卷 234-243页

作者： Chaoyue Chen Yingchun Xie Shuo Yin Wenya Li Xiaotao Luo Xinliang Xie Ruixin Zhao Chunming Deng Jiang Wang hanlin liao Min Liu Zhongming Ren State Key Laboratory of Advanced Special Steels School of Materials Science and EngineeringShanghai UniversityShanghai 200444China Institute of New Materials Guangdong Academy of SciencesNational Engineering Laboratory of Modern Materials Surface Engineering TechnologyGuangdong Provincial Key Laboratory of Modern Surface Engineering TechnologyGuangzhou 510651China Trinity College Dublin The University of DublinDepartment of Mechanical and Manufacturing EngineeringParsons BuildingDublin 2Ireland State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of Friction Welding TechnologiesSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China Key laboratory for Light-weight Materials Nanjing Techchnology UniversityNanjing 211816China ICB UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUTBMF-90010 BelfortFrance

In this work,pure Cu with excellent strength and ductility(UTS of 271 MPa,elongation to fracture of 43.5%,uniform elongation of 30%)was prepared using cold spray additive manufacturing(CSAM),realizing a breakthrough in the *** in-depth investigation was conducted to reveal the microstructure evolution,strengthening and ductilization mechanisms of the CSAM Cu,as well as the single *** results show that the CSAM Cu possesses a unique heterogeneous microstructure with a bimodal grain structure and extensive infinitely circulating ring-mounted distribution of *** on the single splat observation,the entire copper particle forms a gradient nano-grained(GNG)structure after high-speed impact *** GNG-structured single splat serves as a unit to build the heterogeneous microstructure with bimodal grain distribution during the successive deposition in *** results also show that CSAM can achieve synergistic strengthening and ductilization by controlling the grain refinement and dislocation *** work provides potential for CSAM technique in manufacturing various metallic parts with the desired combination of high strength and good ductility without additional post-treatments.

关键词： Cold spray additive manufacturing Copper Heterogeneous microstructure Strength Ductility