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| 1 | Selective laser melting of NiTi alloy with superior tensile property and shape memory effect显示文摘It is a challenge to develop complex-shaped Ni Ti shape memory alloy parts by traditional processing methods, due to the poor machinability of Ni Ti alloy. It is reported that selective laser melting(SLM) of additive manufacturing could overcome this problem. However, the reported SLM-produced Ni Ti exhibits poor tensile ductility due to the inner defects and adverse unidirectional columnar grains from SLM process. In this work, the defect-less SLM-Ni Ti with nondirective columnar grains was fabricated by optimizing the intraformational laser scanning length and interformational laser scanning direction. The obtained lath-shaped SLM-Ni Ti sample exhibits tensile strain of 15.6%, more than twice of the reported maximum result(7%). Besides, the SLM-Ni Ti part with complex geometry displays a shape memory recovery of 99% under compressive deformation of 50%. | Zhiwei Xiong Zhonghan Li Zhen Sun Shijie Hao Ying Yang Meng Li Changhui Song Ping Qiu Lishan Cui | 2019 | Journal of Materials Science & Technology2019，35，10： | 15 |
| 2 | Effects of Predeformation on the Reverse Martensitic Transformation of TiNi Shape Memory Alloy显示文摘DSC was used to study the effects of predeformation on the reverse martensitic transformation of near-equiatomic TiNi alloy. Both the start temperature A. and the finish temperature Af of the reverse transformation increased with increasing degree of predeformation, but the algebraic difference between A. and Af decreased with increasing predeformation until it reached a minimum value, then remained unchanged with further deformation. Transformation heat also increased with increasing predeformation until it reached a maximum value, then decreased with further predeformation. All the phenomena above were considered to be closely related With the release of elastic strain energy during predeformation. | Yanjun ZHENG, Lishan CUI and Fan ZHANG (Department of Materials Science and Engineering, University of Petroleum, Beijing 102200, China) Dazhi YANG (Department of Materials Engineering, Dalian University of Technology, Dalian 116024, China) | 2000 | Journal of Materials Science & Technology2000，16，6： | 13 |
| 3 | Dynamic analysis of urban spatial expansion and its determinants in Xiamen Island显示文摘大多数世界城市在沿海的区域被集中。作为沿海的系统的一个特殊地理部件,岛城市的空间扩大是在城市开发和物理环境之间的相互作用的结果。这篇论文拿厦门岛,在东南的中国定位了,,分析岛的一个例子由在城市的发展政策,城市的全面计划,人口生长和工业开发上联合文学的分析的城市的空间扩大和它的决定因素,与用历史的地图和遥感相片的地理信息分析。第一,我们在最后 100 年期间考察了厦门城市发展的历史,它能被划分成四个时期:从 1908 ~ 1949 的胚胎的现代城市和早开发;从 1950 ~ 1979 的行政边界扩大和基础结构开发;从 1980 ~ 2003 的特殊经济地区建设和快速的都市化;并且海湾城市建设自从 2003。海岸线的动态变化,岛形状,布满建筑物区域,交通,行政部门,和主要陆地使用打发生了在期间的变换近似,过去的 100 年被分析并且岛的特征城市的空间扩大被结束:从一个中央点的早扩大,从海岸线内陆沿着海岸线,和扩大的节由扩大列在后面。第二,我们讨论了岛的潜在的决定因素包括行政部门调整,城市的主人计划修订,工业发展,地形学的因素,沿海的区域开垦,交通扩大,和人口的城市的空间扩大生长。最后,岛上的每个潜在的决定因素的效果城市的空间扩大被结束。岛城市的空间扩大是不独立却交往的自然、社会经济的因素的合成的结果。布满建筑物区域扩大是岛土地的主要司机盖子和陆地使用变化。由这份报纸,我们希望提供在远处在中国,和世界贡献岛和沿海的持续都市化的合理理解的一本科学参考书。 | LI Xinhu LIN Tao ZHANG Guoqin XlAO Lishan ZHAO Qianjun CUI Shenghui | 2011 | Journal of Geographical Sciences2011，21，3： | 10 |
| 4 | Influence of synthesis parameters on the crystallinity and Si/Al ratio of NaY zeolite synthesized from kaolin显示文摘Well-crystallized high-silica NaY zeolites (Si/Al>2.5) were prepared from a reaction mixture consisting of metakaolin, sodium silicate solution and seed solution via optimization of the mixture composition and reaction conditions. The transformation from kaolin to high-silica NaY zeolite was confirmed by XRD, SEM and IR techniques. Subsequently, the influence of synthesis parameters, i.e. initial SiO 2 /Al 2 O 3 , initial Na 2 O/SiO 2 , initial H 2 O/SiO 2 , aging time of the seed solution, crystallization temperature and crystallization time, on the NaY growth was investigated in terms of crystallinity and Si/Al ratio. The results showed that the effects of initial SiO 2 /Al 2 O 3 , initial Na 2 O/SiO 2 and initial H 2 O/ SiO 2 on the crystallinity and Si/Al ratio of NaY zeolite are similar to those observed in the conventional syntheses of NaY zeolites only using sodium silicate solution as silicon source. However, due to the use of metakaolin as the main silicon and aluminum sources in the present study, a long crystallization induction period of 20 h was achieved, which can be attributed to the dissolution of metakaolin. In addition, different from the conventional syntheses of zeolite NaY, pure NaY zeolites (i.e. without NaP zeolite impurity) were still obtained even at 120 °C because of the use of a large quantity of seed solution (23 wt%) in the reaction mixture. As the aging time of the seed solution increased from 3.5 h to 22 h, the relative crystallinity of the NaY zeolite first increased sharply and then reached a plateau, while the Si/Al ratio first increased rapidly up to a maximum value of 2.75 corresponding to an aging time of 6.5 h, and then decreased sharply with the aging time. | Li Qiang Zhang Ying Cao Zhijun Gao Wei Cui Lishan | 2010 | Petroleum Science2010，7，3： | 6 |
| 5 | Pituitary tumor transforming gene: a novel therapeutic target for glioma treatment显示文摘有强壮的增长和 angiogenesis 能力的 Glioma 是在中央神经系统的最普通、恶意的主要肿瘤。垂体肿瘤转变基因(PTTG ) 在垂体肿瘤被发现,并且在房间增长,房间周期,房间 apoptosis,和 angiogenesis 起重要作用。然而,在 glioma 的 PTTG 的角色仍然不完全地被调查。这里,我们探索了在 PTTG 和 glioma 等级,以及微容器的密度(MVD ) 之间的关联。另外, siRNA 包括 U87MG, U251,和 SHG44 在 glioma 房间线习惯于沉默 PTTG 表示。房间增长, apoptosis,侵略,和 angiogenesis 在 vitro 并且在 vivo 被学习。我们的结果证明那 PTTG 表情在 glioma 是显著地起来调整的,并且与 glioma 等级和 MVD 有积极关联。PTTG 的 Silencing 禁止了 glioma 房间增长,迁居 / 侵略,和 angiogenesis,导致了房间 apoptosis,压制了房间侵略,并且逮捕了在 G0/G1 舞台的房间周期。PTTG 的 Silencing 能也在 vivo 禁止肿瘤生长,侵略,和 angiogenesis。我们的数据显示 PTTG 可能是为 glioma 处理的一个潜在的目标。 | Lishan Cui Songbai Xu Zhengmao Song Gang Zhao Xiaoqian Liu Yuwen Song | 2015 | Acta Biochimica et Biophysica Sinica2015，47，6： | 6 |
| 6 | Properties of oxide films grown on 25Cr20Ni alloy in air-H_2O and H_2-H_2O atmospheres显示文摘The oxidation kinetics, surface morphology and phase structure of oxide films grown on 25Cr20Ni alloy in air-H2O and H2-H2O atmospheres at 900 °C for 20 h were investigated. The anti-coking performance and resistance to carburization of the two oxide films were compared using 25Cr20Ni alloy tubes with an inner diameter of 10 mm and a length of 850 mm in a bench scale naphtha steam pyrolysis unit. The oxidation kinetics followed a parabolic law in an air-H2O atmosphere and a logarithm law in a H2-H2O atmosphere in the steady-state stage. The oxide film grown in the air-H2O atmosphere had cracks where the elements Fe and Ni were enriched and the un-cracked area was covered with octahedral-shaped MnCr2O4 spinels and Cr1.3Fe0.7O3 oxide clusters, while the oxide film grown in the H2-H2O atmosphere was intact and completely covered with dense standing blade MnCr2O4 spinels. In the pyrolysis tests, the anti-coking performance and resistance to carburization of the oxide film grown in the H2-H2O atmosphere were far better than that in the air-H2O atmosphere. The mass of coke formed in the oxide film grown in the H2-H2O atmosphere was less than 10% of that in the air-H2O atmosphere. The Cr1.3Fe0.7O3 oxide clusters converted into Cr23C6 carbides and the cracks were filled with carbon in the oxide film grown in the air-H2O atmosphere after repeated coking and decoking tests, while the dense standing blade MnCr2O4 spinels remained unchanged in the oxide film grown in the H2-H2O atmosphere. The ethylene, propylene and butadiene yields in the pyrolysis tests were almost the same for the two oxide films. | Wang Shenxiang Cui Lishan Wang Guoqing Zheng Yanjun Wang Hongxia Jia Jingsheng | 2014 | Petroleum Science2014，11，1： | 3 |
| 7 | The Synthesis of TiNi and Composite Particles in Molten Salts显示文摘A novel process for synthesizing TiNi and TiNi/TiC particles, called the high-temperature salt-melting method, is discussed in this paper. So far as this method is concerned, the molten salts are a reaction medium that does not take part in the chemical reaction but can be easily dissolved by water washing. With this method, TiNi shape memory alloy and TiNi/TiC composite particles were prepared in molten salts at 680-850℃. TiNi particles, ranging from 100 nm to several microns in diameter, are obtained and the reverse martensitic transformation is confirmed in these particles by the differential scanning calorimetry (DSC). The reaction temperature and the holding time have no significant influence on the particle size, morphology or the reverse martensitic transformation characteristics. In the molten salts, the released heat of the chemical reaction causes the local temperature to rise quickly, which is the key to obtaining the desired particulate composite. | Yang Ruisong Cui Lishan Zheng Yanjun | 2005 | Petroleum Science2005，2，3： | 2 |
| 8 | Parent artery occlusion for intracranial aneurysms显示文摘 | Lishan Cui Qiang Peng Wenbo Ha | 2009 | Interv Neuroradiol2009，15，3： | 1 |
| 9 | Two-stage recovery strain of prestrained TiNi shape memory alloy after phase transformation under constraint显示文摘 | Lishan Cui Yan Li Yanjun Zheng Dazhi Yang | 2001 | Materials Letters2001，47，： | 1 |
| 10 | The constrained phase transformation of prestrained TiNi fibers embedded in metal matrix smart composite显示文摘 | Zheng Yanjun Cui Lishan Yang Dazhi | 2000 | Materials Letters2000，43，： | 1 |
| 11 | Crystallization behavior of zeolite beta from acid-leached metakaolin显示文摘Well-crystallized zeolite beta was synthesized by using acid-leached metakaolin as the silica-alumina source and tetraethylammonium hydroxide structure-directing agent.The influence of the composition of the reaction mixture on product crystallinity was investigated,and the crystallization process was studied by examining solid samples obtained at different synthesis times.Results showed that the acid-leached metakaolin was fully converted into soluble aluminum and silicon species,which is crucial for the formation of well-crystallized zeolite beta.At the beginning of the crystallization process,these soluble aluminum and silicon species formed a aluminum-rich intermediate structure with layer morphology.With the crystallization proceeding,more silicon species were incorporated into the zeolite beta framework and the layered structure was changed into spherical particles of zeolite beta with high SiO 2 /Al 2 O 3 ratio and crystallinity. | Li Qiang Zhang Ying Cao Zhijun Gao Wei Cui Lishan | 2010 | Petroleum Science2010，7，4： | 1 |
| 12 | Influence of partial cycling on the transformation mass of NiTi alloys显示文摘 | Tianwei Liu Yanjun Zheng Lishan Cui | 2013 | Materials Letters2013，，： | 1 |
| 13 | Selective laser melted high Ni content TiNi alloy with superior superelasticity and hardwearing显示文摘TiNi alloys with high content Ni(52-55 at.%)are perfectly suitable for preparing wear-and corrosionresistant parts that service on the space station,spacecraft,and submarine,because of their superior superelasticity,high strength,and hardwearing.However,the fabrication of complicated Ni-rich TiNi parts by the traditional machining method often faces problems of poor precision,low efficiency,and high cost.In this work,we succeed in preparing an excellent Ti_(47)Ni_(53) alloy by selective laser melting(SLM),and thus,open a new way for the efficient and precise formation of complicated Ni-rich TiNi parts with superelasticity and hardwearing.An optimized processing window for compact parts without defects is reported.The elaborately fabricated Ti_(47)Ni_(53) alloy exhibited a breaking strain of 11%,a breaking stress of 2.0 GPa,a superelastic strain of 9%,and a better hardwearing than that of casting and quenched Ti_(47)Ni_(53) alloy.Besides,the microstructure,phase transformation,and deformation,as well as their influence mechanisms are investigated by in situ transmission electron microscope(TEM)and high-energy X-ray diffraction(HE-XRD).The results obtained are of significance for both fundamental research and technological applications of SLM-fabricated high Ni content TiNi alloys. | Hui Shen Qingquan Zhang Ying Yang Yang Ren Yanbao Guo Yafeng Yang Zhonghan Li Zhiwei Xiong Xiangguang Kong Zhihui Zhang Fangmin Guo Lishan Cui Shijie Hao | 2022 | Journal of Materials Science & Technology2022，，21： | 1 |
| 14 | Moltensalt synthesis of Mo2 C powder using a mechani-cally milled powder显示文摘 | Yang Ruisong Cui Lishan Zheng Yanjun | 2007 | Materials Letters2007，61，26： | 1 |
| 15 | Large elastic strains and ductile necking of W nanowires embedded in TiNi matrix显示文摘The deformation behaviors of W nanowires embedded in a TiNi matrix were investigated by means of in-situ synchrotron high energy X-ray diffraction(HEXRD) and in-situ transmission electron microscopy(TEM) analysis during tensile deformation.The HEXRD measurement indicated that the W nanowires exhibited an average lattice strain of about 1.50 %,whereas the TEM examination revealed a local elastic strain of about 4.59 % in areas adjacent to the TiNi matrix where stress-induced martensitic transfo rmation occurred.This strain corresponds to a stress of ~15 GPa for the W nanowires.In addition,in areas adjacent to the TiNi matrix where plastic deformation and cracking were generated,the W nanowire showed significant ductile necking with ~80 % reduction in cross-section area.The ductile necking of W nanowire is attributed to the lack of protection from the stress-induced martensitic transformation of the TiNi matrix. | Daqiang Jiang Zhenghao Jia Hong Yang Yinong Liu Fangfeng Liu Xiaohua Jiang Yang Ren Lishan Cui | 2021 | Journal of Materials Science & Technology2021，，1： | 0 |
| 16 | Two-stage Strain Recovery of Explosively Welded NiTi/NiTi Shape Memory Alloys Prestrained in Martensitic Phase显示文摘The present work aimed to investigate the transformation behavior and strain recovery characteristics of Ni50.2Ti/Ni51Ti shape memory alloys (SMAs) prepared by explosive welding. The differential scanning calorimetry (DSC) results showed that the reverse transformation temperatures and the temperature range of NiTi-NiTi alloys increased with increasing prestrain level. Meanwhile, a two-stage strain recovery over a wide temperature range was obtained. | Yan Zhu Cui Lishan Zheng Yanjun | 2006 | Petroleum Science2006，3，3： | 0 |
| 17 | Synthesis of ZnS from organic sulfur in petroleum coke and its photocatalysis properties显示文摘Organic sulfur in high sulfur petroleum coke was treated as the S source for synthesis of ZnS photocatalyst. Experimental results showed that with ball milling and subsequent heating treatment, ZnS compound could be successfully synthesized and showed considerable photocatalysis activity for decomposing industrial pollutants. The concentration of methyl orange or ethylene blue may be lowered to less than 5% after being decomposed by the synthesized-ZnS photocatalysis. Results of this study suggested a potential technique of turning high sulfur petroleum cokes from industrial wastes into useful products for environment improvement. | Zheng Yanjun Wang Xudong Cui Lishan | 2010 | Petroleum Science2010，7，2： | 0 |
| 18 | Effects of Severe Plastic Deformation and Heat Treatment on Transformation Behavior of Explosively Welded Duplex TiNi-TiNi显示文摘The effects of severe plastic deformation and heat treatment on the transformation behavior of explosively welded duplex TiNi-TiNi shape memory alloys (SMAs) were investigated by differential scanning calorimeter (DSC) measurements. The explosively welded duplex TiNi-TiNi plate of 0.7 mm thickness was cold-rolled at room temperature to a 60% reduction in thickness and then annealed at different temperatures for different durations. The results showed that low temperature (623-723K) heat-treatment led to the crystallization of the amorphous region,and re-crystallization occurred in the specimens annealed at higher temperatures (over 873 K). Research indicated that the change of martensitic transformation temperature is due to the change of internal stresses with increasing heat treatment temperature. The change of annealing time also led to a change in martensitic transformation temperature,which was associated with the precipitation and decomposition of Ti3Ni4 in TiNi-1. | Li Juntao Zheng Yanjun Cui Lishan | 2007 | Petroleum Science2007，4，4： | 0 |
| 19 | Influence of Pseudoelasticity on Mechanical Behavior of TiNi Alloy under Dynamic Impact Loading显示文摘The mechanical behavior of TiNi alloy and Cr12MoV alloy under dynamic impact loading was investigated with a self-made impact testing system.The real-time contact force was measured with a piezoelectric force sensor and digital signal processing system during impact.Equations for predicting instantaneous velocity and displacement were presented.The results showed that the TiNi alloy exhibited a plateau of maximum contact force with increasing impact height.At the plateau stage,TiNi alloy in the parent phase can absorb impact energy and keep the maximum contact force nearly identical due to its pseudoelasticity. | Xu Renbo Cui Lishan Zheng Yanjun Chen Hongling | 2007 | Petroleum Science2007，4，1： | 0 |
| 20 | Oxidation of Fe-Cr-Ni Alloys in a Low Oxygen Partial Pressure Atmosphere to Mitigate Coke Formation显示文摘Anti-coking oxide films were prepared on a 25Cr35Ni and 35Cr45Ni alloy surface under the low oxygen partialpressure atmosphere of a H2-H2O mixture. The composition and phase structure of the oxide films were analyzed by energydispersive spectroscopy (EDS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The anti-cokingperformance of a mini tube made of a HP40 (25Cr35Ni) alloy was evaluated on a bench scale pyrolysis and coking test unit.The results showed that the surface Fe and Ni content decreased after the oxidation of the two alloys in a low oxygen partialpressure atmosphere. The oxide films were mainly composed of MnCr_(2)O_(4) and Cr_(2)O_(3). The average mass of coke in the minitube with oxide film decreased by 87% relative to that of a tube without an oxide film when the cracking temperature was 900℃. The ethylene, propylene, and butadiene yields in the pyrolysis tests were almost the same for the mini tubes withand without an oxide film. The oxide film on the alloy surface effectively inhibited catalytic filamentous coke formation.An industrial test showed that the run length of the cracking furnace with the in-situ coating technology was significantlyextended. | Wang Hongxia Wang Guoqing Zhang Lijun Wang Shenxiang Jia Jingsheng Cui Lishan | 2023 | China Petroleum Processing & Petrochemical Technology2023，25，3： | 0 |
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