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| 1 | In Search of the Cretaceous-Tertiary Boundary in Heilongjiang River Area of China显示文摘Abstract A new geological section recognized in Baishantou of Jiayin, Heilongjiang Province, China, was studied preliminarily in searching for the K/T boundary. An early Paleocene florule characrerized by abundant Tiliaephyllum tsagajanicum leaves and its associated plants, was collected from the Baishantou Member (new member representing the lower part of the Paleocene Wuyun Formation) overlying the possible K/T boundary. A tuff bed was found from the upper part of the Furao Formation (uppermost Cretaceous) in this section. The new findings imply that the K/T boundary is probable lying in the interval between the base of the Baishantou Member and the tuff bed, based on the correlation of the present strata with the stratotype of the Tsagajan Group spanning the K/T boundary in 'Belaya Gara' of the Bureya Basin, Russia. The early Paleocene florule from the Baishantou Member and the early-middle Maastrichtian dinosaurs found from the Yuliangzi Formation underlying the Furao Formation suggest that the Baishantou section is more promising for searching for the K/T boundary in this area. Further studies of the section is needed, integrating paleontological, biostratigraphic, geochemical, paleomagnetic, and sedimentary research would benefit our understanding the mass extinction event and biotic recovery in the Heilongjiang River area, China, and even all of northeast Asia during the K/T boundary interval. | Sun G. M.Akhmetiev Dong Z.M. A.R.Ashraf Sun Y.W. E.Bugdaeva D.L.Dilcher L.Golovneva I.Harding K.Johnson T.Kezina T.Kodrul LU J.S. V.Markevich H.Nishida H.Okada Park S.O. Sun C.L. Xiong X.Z. Xing Y.L. Zhou Z.L. | 2002 | Global Geology2002，7，2： | 13 |
| 2 | RECIPROCATING EXTRUSION OF IN SITU Mg_2Si REINFORCED Mg-Al BASED COMPOSITE显示文摘Mg2Si 增强了与硅的高数量合成的基于的 Mg-Al 被永久模子扔准备,然后由互给渗出挤出(RE ) 在以后合成被 homogenization 热处理处理。在 Mg2Si 的形态学和机械性质上处理的 RE 的效果合成被调查,开发新方法精制 Mg2Si 阶段并且改进它的形状。结果证明 RE 在精制 Mg2Si 阶段是很有用的。处理的 RE 传递越多,精制效果将是越多更好。而且, Mg2Si 阶段的一致分发将是更多在合成。在以后合成被 RE 为 12 张通行证处理,大多数 Mg2Si 阶段是 equiaxed 与在 20 μ m 下面的小粒的直径,并且在矩阵一致地散布了合成。机械性质合成能被 RE 处理显著地增加,并且处于当演员组状态比那高得多。作为温度上升,张力的力量被减少。为为 12 张通行证处理的合成 RE,张力的力量,收益力量,和延伸是 325.9 MPa, 211.4 MPa,并且 3.3% 在房间温度, 288.2 MPa, 207.7 MPa,并且 7.8% ,分别地在 150 ° C。与在房间温度的性质比较,张力的力量和收益力量高并且仅仅在 150 ° C 在 11.6% 和 1.8% 减少。Mg2Si 增强了基于的 Mg-Al 合成在 150 ° C 拥有好热抵抗。到热的效果的优秀抵抗被归因于高融化温度和好 Mg2Si 阶段的好热稳定性,它一致地是分布式的在合成,并且有效地妨碍滑行的谷物边界和脱臼运动。 | Z.M. Zhang C.J. Xu X.F. Guo S.Z. Jia | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，3： | 8 |
| 3 | MICROSTRUCTURE OF Mg-6.4Zn-1.1Y ALLOY FABRICATED BY RAPID SOLIDIFICATION AND RECIPROCATING EXTRUSION显示文摘以便探索方法准备高张力增强 quasicrystal 的镁合金,有 50-60 的厚度的很快团结的 Mg-6.4Zn-1.1 Y 镁合金的薄片嗯被 melt 旋转获得单个压路机的设备,和薄片然后被互给处理成杆挤出和直接挤出。合金的微观结构被光显微镜和 SEM 分析,并且成分阶段被 XRD 识别。阶段转变和它的发作温度被微分热分析器(DTA ) 决定。分析结果证明为 Mg-6.4Zn-1.1Y 合金的快速的团结能禁止最容易溶解的反应,在 a-Mg 溶质答案拓宽 Zn 的稳固的溶解度,并且阻碍 Mg3 Y2 Zn3 和 MgZn2 混合物的形成,并且因此帮助从 melt 直接形成的 icosahedral Mg3 YZn6 quasicrystal。薄片的 mierostrueture 由 a-Mg 固体答案和 icosahedral Mg3 YZn6 quasierystal 组成。稠密的杆能由二通行证的互给的挤出和直接挤出由薄片制造。在在杆的薄片之间的接口能完美地被焊接并且连接。在互给的挤出和直接挤出过程期间,更多的 Mg3 YZn6 混合物被猛抛并且一致地散布了,而杆拥有从很快团结的薄片继承的好微观结构。杆包含仅仅二个阶段:是的 amagnesium 固体答案矩阵和在矩阵一致地分散的好 icosahedral Mg3 YZn6 quasicrystal。 | Z.M. Zhang C.J. Xu X.F. Guo | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，1： | 7 |
| 4 | Microstructure Dependent Fatigue Cracking Resistance of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Alloy显示文摘Fatigue cracking behavior from a notch was investigated at room temperature for Ti-6.5Al-3.5Mo-1.5Zr-0.3Si(TC11) alloys with four different microstructures obtained at different cooling rates from the β transus temperature.It was found that the alloy with lamellar structures consisting of α/β lamellae or acicular α' martensite laths had a higher fatigue crack initiation threshold from the notch,while the bimodal structure with coarse α grain had a lower fatigue cracking resistance.The alloy with α/β lamellar structure showed a higher fatigue crack growth resistance.The length scales of the microstructures were characterized to correlate with fatigue cracking behavior.Fatigue cracking mechanism related to microstructures was discussed. | Z.M. Song L.M. Lei B. Zhang X. Huang G.R Zhang | 2012 | Journal of Materials Science & Technology2012，28，7： | 7 |
| 5 | MICROSTRUCTURE OF BINARY Mg-Al EUTECTIC ALLOY WIRES PRODUCED BY THE OHNO CONTINUOUS CASTING PROCESS显示文摘在直径的约 5 公里的方向性地团结的二进制 Mg-Al 最容易溶解的合金电线被 Ohno 生产连续的扔( OCC )进程和微观结构是 examined.It 被发现电线拥有沿着它的轴的 direction.The 微观结构特征的明显的单向性的生长,这由源于竞争生长的平行圆柱的谷物组成 equiaxed 谷物在圆柱的谷物包括的哑巴 bar.Each 的头上团结了常规最容易溶解的 -Mg 和 -Mg17 | Z.M. Zhang T. Lü C.J. Xu X.F. Guo | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，4： | 7 |
| 6 | THEORETICAL INVESTIGATION ON BY-ONLY-CURRENT ELECTROMAGNETIC SEPARATION OF INCLUSION FROM MOLTEN METALS显示文摘The electromagnetic field under applied AC and DC current in round and rectangularpipe was systematically investigated, then a concept of 'equivalent current density'was proposed for evaluating the inhomogeneous electromagnetic pinch force, and themono-component removal efficiency and the overall removal efficiency of inclusionwere formulated. It is founded that flat pipe is superior to round pipe for the electro-magnetic removal of inclusion, and DC current can get a higher removal efficiencythan AC current due to absence of skin phenomenon. Under usual condition, a re-moval efficiency of 52% for 10μm inclusion or more than 92% for 20μm inclusioncan be achieved by imposing a current density of 3× 106A/m2 in a fiat pipe. | B. W. Zhang, Z.M. Ren , Y.B. Zhong, K. Deng and K.D. XuShanghai Enhanced Laboratory of Metallurgy,Shanghai University, Shanghai 200072, China | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，5： | 5 |
| 7 | 采用新型Amplatzer膜VSD封堵器对膜周室间隔缺损行经导管封堵术:美国一期试验的结果显示文摘OBJECTIVES: This phase I study attempted to report the initial safety and efficacy results of transcatheter closure of perimembranous ventricular septal defects(PmVSDs) using the new Amplatzer Membranous VSD Occluder(AGA Medical Corp., Golden Valley, Minnesota) in the U.S. BACKGROUND: The most common congenital heart disease is PmVSD. Surgical repair is widely accepted, but still carries a small but definite risk of morbidity and mortality. METHODS: Between October 2003 and August 2004, a total of 35 patients with PmVSD underwent an attempt of transcatheter closure under transesophageal and/or intracardiac echocardiographic guidance. The median age was 7.7 years(range, 1.2 to 54.4 years) and median weight was 25 kg(range, 8.3 to 110 kg). The median Qp/Qs ratio was 1.8(range, 1 to 4), and the median VSD size as assessed by echocardiography was 7 mm(range, 4 to 15 mm). RESULTS: The attempt to place a device was successful in 32 patients(91% ). The median device size used was 10 mm(range, 6 to 16 mm). The complete closure rates by echocardiography at 10 min(transesophageal/intracardiac), 24 h, 1 month, and 6 months(transthoracic) were 47% (15/32), 63% (20/32), 78% (25/32), and 96% (27/28), respectively. The median fluoroscopy time was 36 min(range, 14 to 191 min), and the median total procedure time was 121 min(range, 67 to 276 min). Three patients(8.6% ) had serious adverse events of complete heart block, peri-hepatic bleeding, and rupture of tricuspid valve chordae tendineae. No other patient encountered serious adverse events during the follow-up. CONCLUSIONS: Transcatheter closure of a PmVSD is technically feasible and seems safe enough in children over 8 kg in weight to warrant continuation of clinical trials to assess the long-term safety and efficacy. | Bass J Amin Z. Z.M. Hijazi 徐永城 | 2006 | 世界核心医学期刊文摘(心脏病学分册)2006，2，5： | 4 |
| 8 | AN IN SITU SURFACE COMPOSITE AND GRADIENT MATERIAL OF Al-Si ALLOY PRODUCED BY ELECTROMAGNETIC FORCE显示文摘Because of the different conductivities between the primary phase (low electric conduc tivity) and the metal melt, electromagnetic force scarcely acts on the primary phase. Thus, an electromagnetic repulsive force applied by the metal melt exerts on the pri mary phase when the movement of the melt in the direction of electromagnetic force is limited. As a result, the repulsive force exerts on the primary phase to push them to move in the direction opposite to that of the electromagnetic force when the metal melt with primary phase solidifies under an electromagnetic force field. Based on this, a new method for production of in situ surface composite and gradient material by electromagnetic force is proposed. An in situ primary Si reinforced surface composite of Al-15wt%Si alloy and gradient material of Al-l9wt%Si alloy were produced by this method. The microhardness of the primary Si is HV1320. The reinforced phase size is in the range from 40μm to 100μm. The wear resistance of Al-Si alloy gradient material can be more greatly increased than that of their matrix material. | Z.M. Xu, T.X. Li, Z.L. Zhu and Y.H. Zhou School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，5： | 3 |
| 9 | THE ELECTROMAGNETIC FIELD CALCULATION AND ANALYSIS OF LEVITATION MELTING WITH COLD CRUCIBLE显示文摘In this paper, using the quasi-3D coupled current method, the influences of structure of cold crucible, the power frequency, the electricity property of melt, the coil position and current on the electromagnetic field (EMF) and the levitation characteristics in the melting processes are analyzed. It is shown that in the processes of levitation melting with cold crucible, the power frequency and cold crucible structure are the decisive factors for the ability of magnetic flux penetrating into cold crucible. The magnetic flux density in cold crucible is reduced as the increasing of power frequency, and this tendency becomes stronger when the power frequency is higher than 100kHz. The segmented structure of cold crucible can reduce the induction eddy in itself effectively, and the higher the power frequency is, the better the result is. So, a cold crucible can be segmented into 16-20 sectors for high frequency electromagnetic field and/or 8-12 sectors for lower frequency one. It is also shown that the levitation force of melting charge is related to coil current as a parabolic function. | K. Deng, Z.M. Ren, J.Q. Chen and G.C. Jiang School of Materials, Shanghai University, Shanghai 200072, China | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 3 |
| 10 | EFFECT OF ANNEALING ON DAMPING CAPACITIES OF AS-CAST ZA27 ALLOY显示文摘ZA27 alloy was prepared by casting with permanent mold and then annealed at 250℃ for 1-4h. The damping capacity of the alloy was measured using a testing apparatus based on the cantilever beam technique. It was found that the as-cast ZA27 alloy possesses high damping capacity with the value of 1.3 × 10-3 at 320Hz. After annealed at 250℃ for 1h, the damping capacity decreases to 1.1 × 10-3 and then remains constant even when the annealing time is increased to 4h. The microstructure of the as-cast ZA27 alloy consists of large dendrites of Al-rich primary (?)-phases, eutectoid (?) and nonequilibrium eutectic phases (?). After annealing at 250℃ for 1h, the (?)phase disappears due to dissolution into the matrix, and the spacing between the flakes of eutectoid increases. The further increase in the annealing time has little effect on the spacing. The damping mechanism of the alloy was discussed considering the thermoelastic damping and defect damping. The value of thermoelastic damping accounts only for 7%-8% in the overall damping in cantilever beam damping measurements and the damping capacity of the ZA27 alloy came mainly from defect damping. | Z.M. Zhang J. C. Wang H.Z. Liu X.F. Guo | 2006 | Acta Metallurgica Sinica(English Letters)2006，19，5： | 3 |
| 11 | A STEEL MATRIX WEAR RESISTANT COMPOSITE REINFORCED BY IN-SITU GRANULAR EUTECTICS显示文摘A new steel matrix wear resistant composite reinforced by in situ granular eutectics can be obtained by modifying with a Si-Ce-Ti compound in the steel melt. The result indicates that the in situ granular eutectic is a pseudo-eutectic of austenite and (Fe,Mn)3C, which is formed between austenite dendrites during solidification due to the segregation of C and Mn impelled by modifying elements. The quantity of in situ granular eutectic reaches up to 8%-12% and its grain size is in the range from 10um to 20um. The austenite steel matrix wear resistant composite reinforced by in situ granular eutectic (abbreviated AGE composite) and austenite-bainite steel mains wear resistant composite reinforced by in situ granular eutectic (abbreviated ABGE composite) are obtained in the as-cast state and by air hardening, respectively. The wear resistance of the AGE and ABGE composites can be more greatly increased than that of their matrix steels under low and medium impact working condition. | Z.M. Xu, T.X. Li and J.G. Li (School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China) | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，2： | 3 |
| 12 | A SRUDY ON CORROSION RESISTANCE OF DIFFERENT MATERIAL IN CONDENSATE WATER FROM A NATURAL GAS PURIFYING STATION显示文摘The corrosion behaviors of different material in the condensate water from the natural gas purifying station were studied by laboratory tests, field tests and measurements of polarization curve. The results showed that hot dipping aluminum steel had a good corrosion resistance to the accompanying gas of crude oil and condensate water in the natural gas purifying station. | Y.Z. Luo,D.Y. Yu,Z.M. Xu,Y. Luo,G.T. Qi and J.L. Yang Departent of Chemistry, Huazhong University of Science and Technology, Wuhan 430074,China | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，5： | 3 |
| 13 | MICROSTRUCTURES AND PROPERTIES OF RECIPROCATINGLY EXTRUDED Mg-6.4Zn-1.1Y ALLOYS显示文摘icosahedral Mg3 YZn6 伪当 Zn 和 Y 的合适的数量被包含时,水晶的阶段能在 Mg-Zn-Y 系统合金被生产,并且准备伪水晶是可行的增强阶段的低密度的镁合金。在这篇文章,阶段成分和互给的效果,当演员组 Mg-6.4Zn-1.1Y 合金的微观结构和性质上的挤出被分析。当演员组 Mg-6.4Zn-1.1Y 合金的微观结构由α - Mg 稳固的溶液, icosahedral Mg3Y2Zn3 伪水晶,和 Mg3 YiZn2 和 MgZn2 混合物组成。在合金 reciprocatingly 为四张通行证被渗出以后,谷物被精制, Mg3 Yi Znz 和 MgZn2 阶段溶解了进矩阵,而, Mg3 YZn6 一致地猛抛并且散布。合金以这个状态拥有最好的表演;张力的力量,收益力量,和延伸是 323.4 MPa, 258.2 MPa,并且 19.7% 分别地。与当演员组合金的比较, reciprocatingly 渗出的合金的张力的力量,收益力量,和延伸分别地到 258.3% , 397.5% ,和 18 次增加。互给的挤出能实质地改进当演员组 Mg-6.4Zn-1.1 Y 合金的性质,这被结束,特别地为延伸。在互给以后的 Mg-6.4Zn-1.1Y 合金的高效挤出能被归因于分散加强和精制谷物的微观结构。 | Z.M. Zhang C.J. Xu X.F. Guo | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，1： | 2 |
| 14 | Structure and Electrochemical Properties of DLC/SiC Films on the Surface of Magnesium Alloy by Plasma Immersion Ion Deposition显示文摘 | Z.M. Sun Tsutomu Sonoda Hitoshi Hashimoto Akihiro Matsumoto | 2013 | Materials Science Forum2013，，750： | 2 |
| 15 | Environmentally assisted crack growth in one-dimensionally cold worked Alloy 690TT in primary water显示文摘 | Q.J. Peng J. Hou T. Yonezawa T. Shoji Z.M. Zhang F. Huang E.-H. Han W. Ke | 2012 | Corrosion Science2012，，： | 2 |
| 16 | MONTE CARLO SIMULATION STUDY OF SURFACE ELECTRONIC EXCITATION OF NOBLE METALS显示文摘In this work we present a numerical simulation of REELS-spectrum for noble metals, Au and Ag. The calculation is based on an electron-surface inelastic scattering model previously developed. The differential inelastic cross section is obtained from an inhomogeneous electron self-energy in the surface region, which provides full information of the dependency of the total and differential cross section on the kinetic energy, the distance from the surface and the moving direction of electrons, accommodating the formulation to the practical situation in surface electron spectroscopes. A novel Monte Carlo simulation code of electron interaction with a surface incorporating the local scattering mean free path has been developed. The comparison of the simulated REELS-spectra with the experimental measurements shows a remarkable agreement on the spectrum shape, which then confirms that the present model for electron-surface inelastic scattering is quite reasonable. The simulation has further shown the component to surface excitation due to the individual scattering processes along trajectory part, i.e., the loss in vacuum before reflection, the loss in vacuum after reflection and loss in metal events. | H.M. Li, Z.J. Ding, Q.R. Pu and Z.M. Zhang Structural Research Laboratory and Department of Astronomy and Applied Physics, University of Science and Technology of China, Hefei 230026, China | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，2： | 2 |
| 17 | THE COMPUTATION AND EXPERIMENT ANALYSIS OF ELECTROMAGNETIC CONTINUOUS CASTING WITH SOFT-CONTACTED MOULD显示文摘In this paper, coupling the quasi-3D numerical simulation of electromagnetic field and the experiments of continuous casting with soft-contacted mould with some metals such as tin, aluminum, copper and steel, the electromagnetic characteristics of continuous casting with soft-contacted mould is analyzed. It is shown that the electromagnetic pressure on the surface of billet is increasing with the rising of power frequency as a logarithmically parabolic function, with that of electric conductivity of billet as a power junction, and with that of the current in inductor as a parabolic junction. | K. Deng, Z.M. Ren, Y.B. Zhong, G.C. Jiang and S.M.Hu 1) School of Materials, Shanghai University, Shanghai 200072, China 2) Shanghai BAOSTEEL Group, Shanghai 200941, China | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 2 |
| 18 | Titanium alloys and their machinability—a review显示文摘 | E.O. Ezugwu Z.M. Wang | 1997 | Journal of Materials Processing Tech1997，，3： | 2 |
| 19 | Electrochemical properties of the LaNi 4.5 Co 0.25 Al 0.25 hydrogen storage alloy in wide temperature range显示文摘 | Q.R. Yao H.Y. Zhou Z.M. Wang S.K. Pan G.H. Rao | 2014 | Journal of Alloys and Compounds2014，，： | 2 |
| 20 | Anastomotic leakage post-esophagogastrectomy for esophageal carcinoma: retrospective analysis of predictive factors, management and influence on longterm survival in a high volume centre显示文摘 | M. Junemann-Ramirez M.Y. Awan Z.M. Khan J.S. Rahamim | 2005 | European Journal of Cardio-Thoracic Surgery2005，，1： | 2 |
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