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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

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

选区激光熔化构建17-4PH钢残余奥氏体梯度分布

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钢铁 2024年第5期59卷 134-144,184页

作者：王岩田丰硕谢信亮韩李雄魏瑛康王建勇张亮亮贾文鹏刘世锋西安建筑科技大学冶金工程学院陕西西安710055 南京工业大学轻质高性能材料研究中心江苏南京211899

马氏体沉淀硬化(17-4PH)钢广泛应用于压缩机叶轮、水翼等具有复杂结构的过流部件。选区激光熔化(selective laser melting,SLM)作为一种新兴的近净成形技术,其逐点逐层的扫描堆叠制造方式有助于通过拓扑设计优化零部件结构和实现复杂形... 详细信息

马氏体沉淀硬化(17-4PH)钢广泛应用于压缩机叶轮、水翼等具有复杂结构的过流部件。选区激光熔化(selective laser melting,SLM)作为一种新兴的近净成形技术,其逐点逐层的扫描堆叠制造方式有助于通过拓扑设计优化零部件结构和实现复杂形状零部件的一体成形。采用“交叉双向式”和“双向式”两种扫描策略交替打印17-4PH钢,探究选区激光熔化构筑17-4PH钢中的残余奥氏体梯度分布方法。研究结果表明,通过调控扫描策略,改变了热量输入和散失方式,可以在17-4PH钢中实现残余奥氏体含量梯度分布。交叉双向扫描策略可有效细化马氏体晶粒,马氏体晶粒的大小与构建高度相关,残余奥氏体晶粒的大小与扫描模式和构建高度关系不大。交叉双向扫描形成的细小马氏体会对周围奥氏体产生附加应力,提高残余奥氏体稳定性,导致试样底部奥氏体较多。双向扫描冷却速度快,过冷度较大,马氏体转变的驱动力增大,消除相稳定,造成顶部马氏体较多,残余奥氏体少。随着堆积层数的升高,组织的冷却速度由慢变快,马氏体的转变程度增加,残余奥氏体含量减少。实现了17-4PH钢中奥氏体梯度组织的控制,这种梯度组织的制备为优化材料性能和实现多功能应用提供了新的途径。

关键词：选区激光熔化 17-4PH钢奥氏体马氏体梯度组织显微硬度

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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

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

双周期电磁弹性纤维增强复合材料的纵向剪切问题

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复合材料学报 2005年第5期22卷 184-189页

作者：谢新亮肖俊华蒋持平北京航空航天大学航空科学与工程学院固体力学研究所北京100083

利用等效夹杂法并结合双(准)周期解析函数理论,为双周期电磁弹性圆截面纤维复合材料的纵向剪切问题发展了实用有效的解析方法,获得了全场的级数解,给出了应力、电位移和磁感应强度的显式结果。利用数值算例讨论了该类非均匀材料微结构... 详细信息

利用等效夹杂法并结合双(准)周期解析函数理论,为双周期电磁弹性圆截面纤维复合材料的纵向剪切问题发展了实用有效的解析方法,获得了全场的级数解,给出了应力、电位移和磁感应强度的显式结果。利用数值算例讨论了该类非均匀材料微结构对其电磁弹性性能的影响。本文方法为电磁弹性复合材料的性能分析和微结构设计提供了一个实用有效的计算工具。

关键词：电磁弹性复合材料等效夹杂法双周期细观力学

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双周期涂层纤维增强复合材料反平面剪切问题

复合材料学报 2008年第3期25卷 168-173页

作者：肖俊华谢新亮徐耀玲蒋持平北京航空航天大学固体力学研究所北京100083 燕山大学工程力学系秦皇岛066004

研究了双周期含涂层纤维增强复合材料在远场反平面载荷作用时的问题,利用Eshelby等效夹杂方法和Laurent级数展开技术,并结合双准周期Riemann边值问题理论,获得了其全场解析解,得到了应力场和有效模量表达式。与有限元结果的对照显示出... 详细信息

研究了双周期含涂层纤维增强复合材料在远场反平面载荷作用时的问题,利用Eshelby等效夹杂方法和Laurent级数展开技术,并结合双准周期Riemann边值问题理论,获得了其全场解析解,得到了应力场和有效模量表达式。与有限元结果的对照显示出本方法的效率和精度。考察了涂层参数对复合材料细观应力场和宏观有效性能的影响。当涂层刚度较大时,涂层内存在高的应力集中,且涂层刚度越大、涂层相对厚度越小,应力集中系数越大。纤维刚度对复合材料有效模量的影响也取决于涂层性能,非常软或非常硬的涂层都大大限制了纤维刚度对复合材料有效模量的贡献。

关键词：双周期涂层纤维反平面剪切 Riemann边值问题应力集中有效模量

双周期带涂层纤维压电复合材料反平面问题分析

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航空学报 2008年第2期29卷 333-337页

作者：谢新亮肖俊华徐耀玲蒋持平北京航空航天大学航空科学与工程学院北京100083 燕山大学建筑工程与力学学院河北秦皇岛066004

研究双周期带涂层纤维压电复合材料反平面问题。利用Eshelby等效夹杂原理引入特征应变和特征电场,并结合双准周期Riemann边值问题理论,获得了问题在反平面机械载荷和面内电载荷作用时的解析解。由本文解的特殊情形可以退化为已有结果。... 详细信息

研究双周期带涂层纤维压电复合材料反平面问题。利用Eshelby等效夹杂原理引入特征应变和特征电场,并结合双准周期Riemann边值问题理论,获得了问题在反平面机械载荷和面内电载荷作用时的解析解。由本文解的特殊情形可以退化为已有结果。数值算例考察了复合材料内部应力和电场随复合材料各组分电弹参数的变化规律,研究了纤维排列方式和纤维体积分数对复合材料有效电弹系数的影响。带涂层纤维正六边形排列时的有效电弹系数与广义自洽方法的预测结果非常接近。结果对新型航空材料的设计和优化具有参考价值。

关键词：双周期带涂层纤维压电复合材料反平面剪切 Riemann边值问题

磁致伸缩位移传感器波导丝扭转超声波衰减特性研究

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电工技术学报 2018年第3期33卷 689-696页

作者：谢新良王博文周露露翁玲孙英河北工业大学电磁场与电器可靠性省部共建重点实验室天津300130

为研制大位移磁致伸缩位移传感器,对扭转超声波在波导丝中的衰减特性进行研究。由于波导丝材料的均一性受拉伸等加工环节的影响,材料的内部变化对检测信号的影响大于超声波在短距离传播的衰减变化。提出的检测方案将永磁体固定在波导丝... 详细信息

为研制大位移磁致伸缩位移传感器,对扭转超声波在波导丝中的衰减特性进行研究。由于波导丝材料的均一性受拉伸等加工环节的影响,材料的内部变化对检测信号的影响大于超声波在短距离传播的衰减变化。提出的检测方案将永磁体固定在波导丝正中间,去掉两端的阻尼,使得向两端传播的超声波受到同样的反射,通过检测两个回波的幅值来测量超声波衰减系数,可以滤除材料不均匀性产生的影响。搭建了磁致伸缩位移传感器实验平台,基于所提实验方法,测得频率为65 k Hz的扭转超声波在线径为0.5 mm且不受拉力作用下的Fe-Ga和Fe-Ni波导丝的衰减系数分别为1.34 d B/m和1.57 d B/m。实验还对比了不同线径Fe-Ga波导丝、不同扭转超声波频率和波导丝在不同拉力作用下的衰减系数变化,结果表明:衰减系数随波导丝线径的增大而增大;衰减系数与扭转超声波的频率呈正相关;衰减系数随波导丝两端拉力的增大先减小后趋于稳定。

关键词：磁致伸缩位移传感器波导丝超声波衰减系数