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Morphological Evolution of Fe-Rich Phases in the AlSi_9Cu_3Mg_(0.19)(Fe)Alloy with the Addition of Minor Mn and Cr

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Acta Metallurgica Sinica(English Letters) 2018年第6期31卷 629-640页

作者： Zhi-Qiang qiu Xiang-Chen Meng qiu-hong yuan Xiao-Shu Zeng Xi-Xin Rao Yan Ding Lan Luo Yong Liu Key Laboratory of Lightweight and High Strength Structural Materials of Jiangxi Province Nanchang University Physical Science and Technology College Yichun University School of Materials Science and Engineering Nanchang University

The morphological evolution of Fe-rich phases in the Alalloy has been investigated with various contents of Fe,Mn,and *** results show that coarse Chinese script Fe-rich phases appear in the alloy with 0.6 wt%Fe combined with trace Mn,while the blocky Fe-rich phases appear combined with trace *** the coexistence of trace Mn and Cr,a large number of fine Chinese script Fe-rich phases could be visible in the low iron-bearing AlSi_9Cu_3-alloy（0.60 wt%）.At high Fe level（1.30 wt%）,numerous Fe-rich phases with hexagonal morphologies are observed with the trace Cr,while fish-bone and pentagonal morphologies of Fe-rich phases could be simultaneously observed with the addition of both Mn and *** results reveal that the trace Mn and Cr promote the morphological evolution of Fe-rich *** morphology evolution mechanism of Fe-rich phases has been discussed by using the atom radius and electronegativity differences of Fe,Mn,and Cr.

关键词： AlSi_9Cu_3Mg_(0.19)(Fe) alloy Fe-rich phase Sludge factor Microalloying Electronegativity differences

Effect of Artificial Electric Field Surface by Wave-Driven Triboelectricity on Anti-Bioadhesion for Riser Protection

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China Ocean Engineering 2024年第3期38卷 483-490页

作者： YI Peng qiu hong-yuan LI Yong CAI Bao-ping Javad MOSTAGHIMI ZHANGWen-jie XIAO Wen-sheng College of Mechanical and Electrical Engineering China University of PetroleumQingdao 266580China CNOOC EnerTech Equipment Technology Co. Ltd.Tianjin 300450China Department of Mechanical&Industrial Engineering University of TorontoToronto ONM5S3G8Canada

Biofouling has been a persistent problem in marine riser system, resulting in energy waste and equipment damage. Inthis study, a kind of water wave-driven contact-mode flexible triboelectric nanogeneration has been prepared byusing graphene-doped PDMS as dielectric friction material. When the graphene content is 2%, the average outputvoltage can reach 46 V under the contact frequency 10 Hz. The flexible triboelectric nanogeneration encapsulationmodule is impinged by water waves to generate alternating microelectric field on the riser surface and destroy theadhesion conditions of microorganisms during the biofilm stage. In the biofouling experiments at different stages, thebiofouling area of the platymonas subcordiformis has been reduced by 53%, 62% and 61%. It provides a new ideafor effective treatment of biofouling of mussels, oysters and barnacles attached to risers.

关键词： wave-drive triboelectric nanogeneration alternating microelectric field anti-biofouling

Fabrication of carbon nanotube reinforced AZ91D composite with superior mechanical properties

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Transactions of Nonferrous Metals Society of China 2017年第8期27卷 1716-1724页

作者： qiu-hong yuan Dong-ming FU Xiao-shu ZENG Yong LIU Department of Materials Engineering Nanchang University Nanchang 330031 China Xinyu Institute of New Energy Xinyu University Xinyu 338000 China

AZ91D alloy composites with1.0%CNTs have been fabricated by a method combined ball milling with stirring *** composite was investigated using optical microscopy(OM),X-ray diffraction(XRD),Fourier transform infrared spectroscope(FT-IR),scanning electron microscope(SEM),transmission electron microscope(TEM)and room temperature(RT)tensile *** show that CNTs were homogeneously distributed in the matrix and maintained integrated *** yield strength andductility of AZ91D/CNTs composite were improved by47.2%and112.2%,respectively,when compared with the *** distribution of CNTs and the strong interfacial bonds between CNT and the matrix are dominated to the simultaneousimprovement of yield strength and ductility of the *** addition,the grain refinement as well as the finerβphase(Mg17Al12)with homogenous distribution in the matrix can also slightly assist to the enhancement of the mechanical properties of thecomposite.

关键词： magnesium alloy carbon nanotube composite casting mechanical properties

Enhanced Mg/graphene interface adhesion using intermediate MgO layers:First-principles prediction and analysis

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Transactions of Nonferrous Metals Society of China 2022年第2期32卷 472-482页

作者： Wei-cheng WANG Jin-long LIU Han-han ZHAO qiu-hong yuan Lan LUO Yong JIANG Yong LIU Key Laboratory of Lightweight and High Strength Structural Materials of Jiangxi Province Nanchang UniversityNanchang 330031China Physical Science and Technology College Yichun UniversityYichun 336000China School of Materials Science and Engineering Nanchang UniversityNanchang 330031China School of Materials Science and Engineering Central South UniversityChangsha 410083China

Graphene-reinforced Mg matrix composites suffer seriously from the weak Mg/graphene interfacial *** this study,a first-principles study was performed to evaluate the feasibility of improving the Mg/graphene bonding using an in-situ formed intermediate MgO *** calculated interface adhesion strengths suggested a relative ordering(from high to low)of Mg(0001)/MgO(11−1)>MgO(11−1)/graphene>Mg(0001)/*** enhanced Mg/MgO/graphene interface bonding can be attributed to the newly formed strong ionic and covalent interactions at the Mg/MgO and the MgO/graphene interfaces,respectively,which replace the otherwise very weak van der Waals bonding between Mg and graphene.

关键词： magnesium matrix composite graphene MgO interface first-principles

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论现代陶瓷造型设计艺术中的忌讳

艺术百家 2010年第5期26卷 227-228页

作者：齐彪邱元红景德镇陶瓷学院陶瓷美术学院江西景德镇333001

各行各业都会有自己的行业"忌讳",有些在后世的传承中得到了解决,有些则成为了束缚行业创新与发展的羁绊。"忌讳"也是前人经验的总结,是后人宝贵的财富和垫脚石,但也会成为壁垒和枷锁。墨守成规者容易因循守旧,敢于突破者往往能够开一... 详细信息

各行各业都会有自己的行业"忌讳",有些在后世的传承中得到了解决,有些则成为了束缚行业创新与发展的羁绊。"忌讳"也是前人经验的总结,是后人宝贵的财富和垫脚石,但也会成为壁垒和枷锁。墨守成规者容易因循守旧,敢于突破者往往能够开一代新风,成为新的里程碑。

关键词：现代陶瓷艺术造型设计忌讳突破文化

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“镇窑”行

艺术百家 2010年第A2期26卷 195-197页

作者：邱元红齐彪景德镇陶瓷学院陶瓷美术学院江西景德镇333403

本文从文化人类学的角度,运用田野考察的方法,记述了景德镇窑的结构、历史及存在方式,喻示了人类对文化遗产的保护不能"断箭疗伤",而是要放眼于过去、现在和未来。

关键词：景德镇镇窑陶瓷艺术设计创意文化特征艺术人类学

基于MAX 712芯片的可编程充电器的设计

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电源技术 2005年第4期29卷 257-260页

作者：赵顺东洪秋媛河南省洛阳工业高等专科学校自动化系河南洛阳471003

通过对蓄电池充电过程的分析和研究,指出影响蓄电池寿命的主要因素为过充。针对普通MH-Ni蓄电池充电器功能单一、无法有效防止过充等问题,提出一种新型充电器的电路设计方案。该电路采用MAXIM公司生产的专用充电芯片MAX712,通过灵活编... 详细信息

通过对蓄电池充电过程的分析和研究,指出影响蓄电池寿命的主要因素为过充。针对普通MH-Ni蓄电池充电器功能单一、无法有效防止过充等问题,提出一种新型充电器的电路设计方案。该电路采用MAXIM公司生产的专用充电芯片MAX712,通过灵活编程可对1～16节MH-Ni蓄电池以不同充电速率快速充电;当电池充满时,通过检测电压变化率为零结束快充,并立即转为涓流充电,可以确保充满并避免过充,从而有效地延长了充电电池的使用寿命。整个电路结构简单,性能完善。通过实际应用表现出安全、高效和节能的特点,获得了良好的使用效果。

关键词： MAX712芯片可编程充电器 MH-Ni蓄电池快速充电涓流充电

Zr-Sn-Nb-Fe锆合金耐腐蚀性能研究

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核动力工程 2017年第5期38卷 132-137页

作者：程竹青杨忠波邱军刘鸿袁改焕高博中国核动力研究设计院反应堆燃料及材料重点实验室成都610213 国核宝钛锆业股份有限公司陕西宝鸡721000

采用静态高压釜研究了去应力态和再结晶态的SZA-4(Zr-0.8Sn-0.25Nb-0.35Fe-0.1Cr-0.05Ge)、SZA-6(Zr-0.5Sn-0.5Nb-0.3Fe-0.015Si)锆合金以及去应力态的参比合金A(Zr-1Sn-1Nb-0.1Fe)在360℃/18.6MPa去离子水、360℃/18.6 MPa/0.01 mol·L^(-1)含锂水和400℃/10.3 MPa过热蒸汽3种条件下的耐腐蚀性能,采用扫描电子显微镜(SEM)和透射电子显微镜(TEM)观察分析合金的微观结构。结果表明:在3种腐蚀条件下,SZA-4和SZA-6的耐腐蚀性能均明显优于参比合金A,相同腐蚀条件下,再结晶态的SZA-4耐腐蚀性能优于去应力态,而SZA-6表现出相反规律;SZA-4中存在2种密排六方结构(HCP)的第二相,一种为尺寸较小的Zr(NbFeCr)_2,另一种为尺寸较大的Zr(NbFeCr Ge)_2;SZA-6中存在着面心立方结构(FCC)的(ZrNb)_2Fe和密排六方结构(HCP)的Zr(NbFe)_2两种第二相。探讨了合金成分和第二相对3种Zr-Sn-Nb锆合金耐腐蚀性能的影响机理,认为合金成分是引起耐腐蚀性能差别的主要原因。

关键词：锆合金耐腐蚀性能第二相

小梁切除术联合白内障超声乳化吸除并人工晶体植入术对原发性闭角型青光眼的临床疗效分析

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中外医疗 2018年第18期37卷 65-66,69页

作者：邱元宏兖州区人民医院眼科山东兖州272100

目的探讨小梁切除术联合白内障超声乳化吸除并人工晶体植入术对原发性闭角型青光眼的临床疗效。方法研究对象共48例,均是从该院2017年1月—2018年1月所接收的原发性闭角型青光眼患者中方便选出的,随机分为两组,对照组患者接受的治疗方... 详细信息

目的探讨小梁切除术联合白内障超声乳化吸除并人工晶体植入术对原发性闭角型青光眼的临床疗效。方法研究对象共48例,均是从该院2017年1月—2018年1月所接收的原发性闭角型青光眼患者中方便选出的,随机分为两组,对照组患者接受的治疗方法为单纯小梁切除术,在术后给予患者妥布霉素地塞米松滴眼液进行治疗。治疗组患者接受的治疗方法为小梁切除术联合白内障超声乳化吸除并人工晶体植入术,对比两组治疗效果。结果在接受治疗之后,对两组患者的最终临床治疗效果进行对比发现,治疗组有效率95.83%,显著优于对照组62.50%,两组患者之间差异有统计学意义(χ~2=5.339,P<0.05)。结论在原发性闭角型青光眼疾病的临床治疗工作中,小梁切除术联合白内障超声乳化吸除并人工晶体植入术的使用所能发挥的临床治疗效果是非常显著的,患者在接受此类治疗方法进行治疗后疾病可以得到有效治疗。

关键词：小梁切除术白内障超声乳化吸除人工晶体植入术原发性闭角型青光眼