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加权断层泥比率法(WSGR)定量判别断层封闭性——以苏北盆地高邮凹陷永安地区为例

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石油实验地质 2024年第1期46卷 158-165页

作者：李储华于雯泉丁建荣中国石化江苏油田分公司勘探开发研究院江苏扬州225009 中国石化江苏油田分公司科技装备部江苏扬州225009

断层封闭性评价是断块圈闭成藏条件分析的重要内容,在改进断层泥比率法基础上,提出了一种新的断层封闭性评价方法——加权断层泥比率法(WSGR)。首先,通过不同的地质模型开展断层泥比率法计算参数及影响因素分析,明确了断层断距、泥质含... 详细信息

断层封闭性评价是断块圈闭成藏条件分析的重要内容,在改进断层泥比率法基础上,提出了一种新的断层封闭性评价方法——加权断层泥比率法(WSGR)。首先,通过不同的地质模型开展断层泥比率法计算参数及影响因素分析,明确了断层断距、泥质含量及泥岩分布特征是泥岩涂抹的重要影响因素;并认为断层断距范围内,滑过目标位置的对置盘所有泥质含量都具有涂抹贡献,但不同点的涂抹贡献不同,距离目标位置越近泥质含量越高的对置盘泥岩点,其涂抹贡献越大。为此引入了一个新的表征参数——距离系数,定义为断层断距与各泥岩点到目标位置距离的差与断层断距的比值,来表征泥岩分布对泥岩涂抹的影响作用;在此基础上,构建了加权断层泥比率计算方法,定义为各点的泥质含量与距离系数的乘积之和再与距离系数之和的比值。利用加权断层泥比率法对苏北盆地高邮凹陷上含油气系统已知的油水层进行封闭性验证,认为当加权断层泥比率值大于0.6时,断层具有较好的封闭性,从而确定了该方法的封闭性判别标准。在高邮凹陷永安等地区始新统戴南组断层封闭性评价中取得了较好应用效果。

关键词：加权断层泥比率法距离系数断层封闭性永安地区高邮凹陷苏北盆地

宽雷诺数下肋参数对U型内冷通道流动与换热特性影响的实验研究

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西安交通大学学报 2024年第6期58卷 103-113页

作者：万红牛丁俣中程想陈黎王进冀文涛陶文铨西安交通大学热流科学与工程教育部重点实验室西安710049 河北工业大学能源与环境工程学院天津300401

为了研究肋高和通道高的比值(e/H)、肋间距与肋高的比值(P/e)以及肋角度(α)对U型带肋通道流动与换热特性的影响,采用铜板法结合热电偶测量壁面温度分布,对6个不同肋参数U型带肋通道的表面换热特性进行了实验研究。带肋通道截面为正方形... 详细信息

为了研究肋高和通道高的比值(e/H)、肋间距与肋高的比值(P/e)以及肋角度(α)对U型带肋通道流动与换热特性的影响,采用铜板法结合热电偶测量壁面温度分布,对6个不同肋参数U型带肋通道的表面换热特性进行了实验研究。带肋通道截面为正方形,实验的Re为5.0×10^(3)~1.0×10^(5)。研究结果表明,随着e/H和Re的增大,带肋通道的对流换热系数逐渐增大,但相应的流动损失增幅明显,e/H从0.08增大到0.12时,通道的阻力系数增大了近一倍。对于e/H=0.08的通道,P/e分别为6、8、10时,P/e为8时的对流换热系数和阻力损失均高于其他两种情况。相较于90°正交肋,带角度的斜肋能够进一步增强带肋通道的对流换热,75°肋的强化效果略强于60°肋。在实验参数范围内,对于几种不同的带肋U型通道,对流换热系数为光滑通道的1.9~3.0倍,阻力系数为光滑通道的4~16倍。综合考虑换热与流阻,e/H=0.08、P/e=8、α=45°的通道性能最好。

关键词：涡轮叶片内部冷却带肋通道对流换热

3D morphological evolution and growth mechanism of proeutectic FeAl_(3) phases formed at Al/Fe interface under different cooling rates

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Journal of Materials Science & Technology 2022年第21期116卷 83-93页

作者： Naifang Zhang Qiaodan Hu Zongye ding wenquan Lu Fan Yang Jianguo Li Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong University200240 ShanghaiChina School of Mechanical Engineering Shanghai Jiao Tong University200240 ShanghaiChina

The 3D morphologies and growth mechanisms of proeutectic FeAl_(3) at the Al/Fe interface under different cooling rates were studied by synchrotron X-ray tomography.With increasing cooling rate,FeAl_(3) crystals developed from faceted polygonal prism,plates with flat surface,thin ribbon-like with periodic undulating surface to non-faceted rods with radial dendrites in cross section,indicating a gradual interface growth mode transition from two-dimensional layer growth to continuous growth.At a higher cooling rate,twinning mechanism plays a leading role in the formation and growth of FeAl_(3).A link between the morphologies,twinning and crystallographic structure was established based on quantitative analyses on the 3D structures.

关键词： Solidification 3D morphology FeAl_(3)Internetallic compounds Cooling rate Synchrotron radiation Al/Fe interface

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光催化耦合原位芬顿体系的研究进展

化学与生物工程 2024年第3期41卷 1-6页

作者：古文泉张丽英曾连连曾祥锐丁苏阳王天烽龙门县发展和改革局广东惠州516800 广东翁源经济开发区广东韶关512600 兰州理工大学石油化工学院甘肃兰州730050

在光催化耦合原位芬顿体系中,光催化反应产生的H_(2)O_(2)被激活生成具有强氧化性的·OH,可以提高对环境中各种污染物的降解效率。介绍了光催化耦合原位芬顿体系的原理、优势,综述了光催化耦合原位芬顿体系在污染处理中的应用研究进展,... 详细信息

在光催化耦合原位芬顿体系中,光催化反应产生的H_(2)O_(2)被激活生成具有强氧化性的·OH,可以提高对环境中各种污染物的降解效率。介绍了光催化耦合原位芬顿体系的原理、优势,综述了光催化耦合原位芬顿体系在污染处理中的应用研究进展,并展望了其发展方向。

关键词：光催化芬顿原位 H_(2)O_(2) 降解

Unveiling the Growth Mechanism of Faceted Primary Al_(2)Cu with Complex Morphologies During Solidification

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Acta Metallurgica Sinica(English Letters) 2022年第1期35卷 124-132页

作者： Zongye ding Qiaodan Hu Fan Yang Liao Yu Tianxing Yang Naifang Zhang wenquan Lu Jingwei Yang Jian Qiao Jianguo Li School of Mechatronic Engineering and Automation Foshan UniversityFoshan528225China Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai200240China

The growth characteristic of primary faceted Al_(2)Cu intermetallic compounds(IMCs)during solidification was observed directly by synchrotron radiography.The formation and transition mechanisms of Al_(2)Cu IMCs with diverse morphologies were elucidated by first-principle calculations combined with electron backscatter diffraction analysis.The Al_(2)Cu crystals preferred to grow along the[001]direction and were bounded by{110}planes with the lowest surface energy.The faceted Al_(2)Cu rod-like clusters consisted of multiple crystals with complete rod,hollowness and partial sides,which was attributed to the increase in strain energy and solute redistribution during solidification.The faceted Al_(2)Cu with branches was characteristic with the perpendicular relationship between the main branches and side steps and partial coalescence at the junction,which was ascribed to the continuous propagation and growth of newly formed crystals along the diagonal direction.

关键词： Solidification Synchrotron radiography Internetallic compounds Crystal growth Morphology

Recent Progress in Metallurgical Bonding Mechanisms at the Liquid/Solid Interface of Dissimilar Metals Investigated via in situ X-ray Imaging Technologies

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Acta Metallurgica Sinica(English Letters) 2021年第2期34卷 145-168页

作者： Zongye ding Naifang Zhang Liao Yu wenquan Lu Jianguo Li Qiaodan Hu Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

The liquid/solid(L/S)interface of dissimilar metals is critical to the microstructure,mechanical strength,and structural integrity of interconnects in many important applications such as electronics,automotive,aeronautics,and astronautics,and therefore has drawn increasing research interests.To design preferential microstructure and optimize mechanical properties of the interconnects,it is crucial to understand the formation and growth mechanisms of diversified structures at the L/S interface during interconnecting.In situ synchrotron radiation or tube-generated X-ray radiography and tomography technologies make it possible to observe the evolution of the L/S interface directly and therefore have greatly propelled the research in this field.Here,we review the recent progress in understanding the L/S interface behaviors using advanced in situ X-ray imaging techniques with a particular focus on the following two issues:(1)interface behaviors in the solder joints for microelectronic packaging including the intermetallic compounds(IMCs)during refl ow,Sn dendrites,and IMCs during solidification and refl ow porosities and(2)growth characteristics and morphological transition of IMCs in the interconnect of dissimilar metals at high temperature.Furthermore,the main achievements and future research perspectives in terms of metallurgical bonding mechanisms under complex conditions with improved X-ray sources and detectors are remarked and discussed.

关键词： Liquid/solid interface Metallurgical bonding Dissimilar interconnects In situ X-ray imaging Solidification Microelectronic packaging

Effect of cooling rate on the 3D morphology of the proeutectic Al3Ni intermetallic compound formed at the Al/Ni interface after solidification

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Journal of Materials Science & Technology 2021年第10期69卷 60-68页

作者： Liao Yu Qiaodan Hu Zongye ding Fan Yang wenquan Lu Naifang Zhang Sheng Cao Jianguo Li Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Materials The University of ManchesterOxford RoadManchesterMl 39PLUK

Effect of cooling rate on the 3 D morphology and the growth mechanism of the proeutectic Al3Ni intermetallic compound(IMC) that forms at the Al/Ni interface after solidification was investigated by synchrotron X-ray microtomography in combination with EBSD analysis. The proeutectic Al3Ni phase that forms under an average cooling rate of 0.1 Ks^(-1) shows a characteristic faceted growth behavior and presents a typical 3 D morphology as partially hollow quadrangular prisms. On the contrary, that forms under an average cooling rate of 10 Ks^(-1) shows complicated dendritic morphology with asymmetrically distributed arms and faceted V-shape groove at the distal end, indicating a gradual transition of the growth behavior from non-faceted to faceted during the solidification process. These results reveal that the morphology of the proeutectic Al3Ni is highly sensitive to the solidification condition so that fine control of the desired morphology may be achieved by carefully manipulating the cooling profile.

关键词： 3D morphology Al3Ni intermetallic compounds Solidification Cooling rate Synchrotron radiation Al/Ni interface

Intergrowth mechanism and morphology prediction of faceted Al_(3)Ni formed during solidification by a spatial geometric model

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Journal of Materials Science & Technology 2020年第19期54卷 40-47页

作者： Zongye ding Qiaodan Hu wenquan Lu Fan Yang Yihan Zhou Naifang Zhang Sheng Cao Liao Yu Jianguo Li Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai200444China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Materials University of ManchesterOxford RoadManchester M139PLUK

The interplay and intergrowth characteristic of faceted intermetallic compounds(IMCs)during solidification was originally investigated through the rod-like Al3 Ni crystals in the liquid Al/solid Ni interconnection by using synchrotron radiography,and the diversified 3-D morphologies were reconstructed by synchrotron tomography.A spatial geometric model was established to effectively predict the diversified growth patterns of two spatial crystals.For the two overlapping Al3 Ni crystals,the impeded crystal growth was divided into three different stages,decided by the hindrance form the other crystal.Further,the groove formed on the crystal surface is directly related to the solute redistribution under the critical condition of boundary layer thickness larger than two crystals distance.The closer distance and smaller crystal size indicate the deeper and larger groove,and the morphology changes from hemispheroid to hemi-ellipsoid with the increased opposite and interacted faces.

关键词： Solidification Synchrotron radiography Intergrowth behaviour Intermetallic compounds 3-D morphology

In-situ study on hydrogen bubble evolution in the liquid Al/solid Ni interconnection by synchrotron radiation X-ray radiography

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Journal of Materials Science & Technology 2019年第7期35卷 1388-1392页

作者： Zongye ding Qiaodan Hu wenquan Lu Xuan Ge Sheng Cao Siyu Sun Tianxing Yang Mingxu Xia Jianguo Li Shanghai Key Laboratory of Materials Laser Processing Modification School of Materials Science and EngineeringShanghai Jiao Tong University200240ShanghaiChina Monash Centre for Additive Manufacturing (MCAM) Monash UniversityClaytonVIC3800Australia

Synchrotron X-ray radiography was used to carry out an in-situ observation of the hydrogen bubble evolution in the liquid Al/solid Ni interconnection. The individual bubble mainly grows in a stochastic way during heating. The size distribution for groups of bubbles follows a Gaussian distribution in the early stage and Lifshitz-Slyozov-Wagner(LSW) diffusion controlled distribution in the final stage. The intermetallic compounds(IMCs) first form during solidification, following by the hydrogen bubbles. The bubbles between two adjacent Al3Ni grains grow unidirectionally along the liquid channel, with the bottom being impeded by the Al3Ni phase and the radius of the growth front being smaller. For the bubbles at triple junctions, they grow along the liquid channel and the crack with morphology transition.

关键词： Synchrotron radiation Liquid Al/solid Ni interconnection Hydrogen bubble Intermetallic compounds Growth behavior