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| 1 | A review——Pitting corrosion initiation investigated by TEM显示文摘Passive metals have superior resistance to general corrosion but are susceptible to pitting attack in certain aggressive media, leading to material failure with pronounced adverse economic and safety consequences. Over the past decades, the mechanism of pitting corrosion has attracted corrosion community striving to study. However, the mechanism at the pitting initiation stage is still controversy, due to the difficulty encountered in obtaining precise experimental information with enough spatial resolution.Tracking the accurate sites where initial dissolution occurs as well as the propagation of the dissolution by means of multi-scale characterization is key to deciphering the link between microstructure and corrosion at the atomic scale and clarifying the pitting initiation mechanism. Here, we review our recent progresses in this issue by summarizing the results in three representative materials of 316F, and Super 304H stainless steel as well as 2024-Al alloy, using in situ ex-environmental TEM technique. | B.Zhang X.L.Ma | 2019 | Journal of Materials Science & Technology2019，35，7： | 13 |
| 2 | Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel显示文摘The effect of grain size(in the range from 4 μm to 12 μm) on the hydrogen embrittlement(HE) of 304 austenitic stainless steel(ASS) was studied. HE susceptibility result shows that HE resistance increases with grain refinement. Electron backscattered diffraction kernel average misorientation(EBSD-KAM)mapping shows that the strain localization can be mitigated by grain refinement. Hence, strain localization sites which act as highways for hydrogen diffusion and preferred crack initiation sites can be reduced along with grain refinement, leading to a high HE resistance. Meanwhile, grain size shows no influence on the strain induced martensite(SIM) transformation during the hydrogen charging slow strain tensile test(SSRT). Hence, the SIM formed during hydrogen charging SSRT is not responsible for the different HE resistance of 304 ASSs with various grain sizes. Hydrogen diffusion is supposed to be controlled by a competition between short-circuit diffusion along random grain boundary(RGB) and hydrogen trapping at dislocations, leading to a maximum hydrogen diffusion coefficient in the 304 ASS with an average grain size of 8 μm. | Y.H.Fan B.Zhang J.Q.Wang E.-H.Han W.Ke | 2019 | Journal of Materials Science & Technology2019，35，10： | 10 |
| 3 | High-power passively Q-switched 2 μm all-solid-state laser based on a Bi_2Te_3 saturable absorber显示文摘By using the ultrasound-assisted liquid phase exfoliation method, Bi_2Te_3 nanosheets are synthesized and deposited onto a quartz plate to form a kind of saturable absorber(SA), in which nonlinear absorption properties around 2 μm are analyzed with a home-made mode-locked laser. With the as-prepared Bi_2Te_3 SA employed,a stable passively Q-switched all-solid-state 2 μm laser is successfully realized. Q-switched pulses with a maximum average output power of 2.03 W are generated under an output coupling of 5%, corresponding to the maximum single-pulse energy of 18.4 μJ and peak power of 23 W. The delivered shortest pulse duration and maximum repetition rate are 620 ns and 118 k Hz under an output coupling of 2%, respectively. It is the first presentation of such Bi_2Te_3 SA employed in a solid-state Q-switched crystalline laser at 2 μm, to the best of our knowledge. In comparison with other 2 D materials suitable for pulsed 2 μm lasers, the saturable absorption performance of Bi_2Te_3 SA is proved to be promising in generating high power and high-repetition-rate 2 μm laser pulses. | X.LIU K.YANG S.ZHAO T.LI W.QIAO H.ZHANG B.ZHANG J.HE J.BIAN L.ZHENG L.SU J.XU | 2017 | Photonics Research2017，5，5： | 6 |
| 4 | THE HOT DEFORMATION BEHAVIOR AND DYNAMIC RECRYSTALLIZATION MODEL OF 35CrMo STEEL显示文摘The isothermal single-stage compression of 35CrMo structural steel has been carried out by using Gleeble 1500 simulator at the temperature range of 950℃ to 1150℃and strain rate range of 0. 01s-1 to 10s-1. The effect of hot deformation parameters,such as strain rate, deformed temperature and initial grain size on the flow stress behavior was investigated. The activation energy of tested alloy was calculated, which is 378.16k J/mol; The relationships between the peak stress (σp), the peak stain (εp),the critical strain (cc) and Z parameter were established. The microstructure evolution shows the pre-existing austenite grain boundaries constitute the principal nucleation sites for dynamic recrystallization (DRX), and the initial austenite grain size affects the grain size of DRX slightly. The kinetic mathematical model of DRX of 35CrMo is: XDRX=1-exp(-3.23.(ε-εc/εs-εc)2.28) and Ddyn = 2.252 × 104 Z-0.22. | B.Zhang H.B.Zhang X.Y.Ruan Y.Zhang | 2003 | Acta Metallurgica Sinica(English Letters)2003，16，3： | 5 |
| 5 | Atom probe tomographic observation of hydrogen trapping at carbides/ferrite interfaces for a high strength steel显示文摘A three-dimensional atom probe(3 DAP) technique has been used to characterize the hydrogen distribution on carbides for a high strength AISI 4140 steel.Direct evidence of H atoms trapped at the carbide/ferrite interfaces has been revealed by 3 DAP mapping.Hydrogen is mainly trapped on carbide/ferrite interfaces along the grain boundaries.Slow strain rate tensile(SSRT) testing shows that the AISI 4140 steel is highly sensitive to hydrogen embrittlement.The corresponding fractographic morphologies of hydrogen charged specimen exhibit brittle fracture feature.Combined with these results,it is proposed that the hydrogen trapping sites present in the grain boundaries are responsible for the hydrogen-induced intergranular fracture of AISI 4140.The direct observation of hydrogen distribution contributes to a better understanding of the mechanism of hydrogen embrittlement. | Y.F.Jiang B.Zhang Y.Zhou J.Q.Wang E.-H.Han W.Ke | 2018 | Journal of Materials Science & Technology2018，34，8： | 4 |
| 6 | Geometrical Scale-Sensitive Fatigue Properties of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Alloys With α/β Lamellar Microstructures显示文摘Fatigue properties of the Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloy sheets containing different numbers of α/β Widmansttten colonies in the thickness direction of the sheets were investigated by tensionetension fatigue testing. It is found that fatigue properties of the Ti alloy either in low- or high-stress amplitude regimes become more sensitive to the sheet thickness of the Ti alloy as the sheet thickness is comparable to the length scale of the Widmansttten colonies. The basic mechanism of such length scale-sensitive fatigue properties in the Ti alloy was elucidated. | B.Zhang Z.M.Song L.M.Lei L.Kang G.P.Zhang | 2014 | Journal of Materials Science & Technology2014，30，12： | 4 |
| 7 | The Lobster Eye Imager for Astronomy Onboard the SATech-01 Satellite显示文摘The Lobster Eye Imager for Astronomy(LEIA),a pathfinder of the Wide-field X-ray Telescope of the Einstein Probe mission,was successfully launched onboard the SATech-01 satellite of the Chinese Academy of Sciences on2022 July 27.In this paper,we introduce the design and on-ground test results of the LEIA instrument.Using stateof-the-art Micro-Pore Optics(MPO),a wide field of view of 346 square degrees(18.6°×18.6°)of the X-ray imager is realized.An optical assembly composed of 36 MPO chips is used to focus incident X-ray photons,and four large-format complementary metal-oxide semiconductor(CMOS)sensors,each of size 6 cm×6 cm,are used as the focal plane detectors.The instrument has an angular resolution of 4’-8’(in terms of FWHM)for the central focal spot of the point-spread function,and an effective area of 2-3 cm^(2) at 1 keV in essentially all the directions within the field of view.The detection passband is 0.5-4 keV in soft X-rays and the sensitivity is2-3×10^(-11) erg s^(-1) cm^(-2)(about 1 milliCrab)with a 1000 s observation.The total weight of LEIA is 56 kg and the power is 85 W.The satellite,with a design lifetime of 2 yr,operates in a Sun-synchronous orbit of 500 km with an orbital period of 95 minutes.LEIA is paving the way for future missions by verifying in flight the technologies of both novel focusing imaging optics and CMOS sensors for X-ray observation,and by optimizing the working setups of the instrumental parameters.In addition,LEIA is able to carry out scientific observations to find new transients and to monitor known sources in the soft X-ray band,albeit with limited useful observing time available. | Z.X.Ling X.J.Sun C.Zhang S.L.Sun G.Jin S.N.Zhang X.F.Zhang J.B.Chang F.S.Chen Y.F.Chen Z.W.Cheng W.Fu Y.X.Han H.Li J.F.Li Y.Li Z.D.Li P.R.Liu Y.H.Lv X.H.Ma Y.J.Tang C.B.Wang R.J.Xie Y.L.Xue A.L.Yan Q.Zhang C.Y.Bao H.B.Cai H.Q.Cheng C.Z.Cui Y.F.Dai D.W.Fan H.B.Hu J.W.Hu M.H.Huang Z.Q.Jia C.C.Jin D.Y.Li J.Q.Li H.Y.Liu M.J.Liu Y.Liu H.W.Pan Y.L.Qiu M.Sugizaki H.Sun W.X.Wang Y.L.Wang Q.Y.Wu X.P.Xu Y.F.Xu H.N.Yang X.Yang B.Zhang M.Zhang W.D.Zhang Z.Zhang D.H.Zhao X.Q.Cong B.W.Jiang L.H.Li X.B.Qiu J.N.Sun D.T.Su J.Wang C.Wu Z.Xu X.M.Yang S.K.Zhang Z.Zhang N.Zhang Y.F.Zhu H.Y.Ban X.Z.Bi Z.M.Cai W.Chen X.Chen Y.H.Chen Y.Cui X.L.Duan Z.G Feng Y.Gao J.W.He T.He J.J.Huang F.Li J.S.Li T.J.Li T.T.Li H.Q.Liu L.Liu R.Liu S.Liu N.Meng Q.Shi A.T.Sun Y.M.Wang Y.B.Wang H.C.Wu D.X Xu Y.Q Yang Y.Yang X.S.Yu K.X.Zhang Y.L.Zhang Y.H.Zhang Y.T.Zhang H.Zhou X.C.Zhu J.S.Cheng L.Qin L.Wang Q.L.Wang M.Bai R.L.Gao Z.Ji Y.R.Liu F.L.Ma Y.J.Shi J.Su Y.Y.Tan J.Z.Tong H.T.Xu C.B.Xue G.F.Xue W.Yuan | 2023 | Research in Astronomy and Astrophysics2023，23，9： | 2 |
| 8 | Enhancement of shear stability of a Fe-based amorphous alloy using electrodeposited Ni layers显示文摘Tensile and fracture behaviors of sandwich-structured composites consisting of a Fe-based amorphous layer with a constant thickness and ultrafine-grained Ni layers with different thicknesses were investigated. The results indicate that the initiation and the stable propagation of the shear band in the amorphous layer was dominated by the Ni layers due to their strong constraint role. The catastrophic fracture of the amorphous layer was postponed in the sandwich composites through properly increasing the constrained Ni layer thickness, which effectively decreased the shear stress on the shear fracture planes of the amorphous layer, and thus led to stable propagation of the primary SB characterized by the increase in the smooth region size of the shear band. | Y.C.Wang X.M.Luo L.J.Chen H.W.Yang B.Zhang G.P.Zhang | 2018 | Journal of Materials Science & Technology2018，34，12： | 1 |
| 9 | Enhancement of salt tolerance in alfalfa transformed with the gene encoding for betaine aldehyde dehydrogenase显示文摘 | Liu Z H Zhang H M Li G L Guo X L Chen S Y Liu G B.Zhang M Y | | 0，，： | 1 |
| 10 | Guided Waves in the Multilayered One-Dimensional Hexagonal Quasi-crystal Plates显示文摘Guided waves in the multilayered one-dimensional quasi-crystal plates are,respectively,investigated in the context of the Bak and elasto-hydrodynamic models.Dispersion curves and phonon and phason displacements are calculated using the Legendre polynomial method.Wave characteristics in the context of these two models are analyzed in detail.Results show that the phonon-phason coupling effects on the first two layers are the same at low frequencies;but,they are more significant on the first layer than those on the second layer at high frequencies.These obtained results lay the theoretical basis of guided-wave nondestructive test on multilayered quasi-crystal plates. | B.Zhang J.G.Yu X.M.Zhang X.H.Wang | 2021 | Acta Mechanica Solida Sinica2021，34，1： | 1 |
| 11 | Graph embedding and extensions: a general framework for dimensionality reduction显示文摘 | S.Yan D.Xu B.Zhang H.Zhang Q.Yang S.Lin | | 0，，01： | 1 |
| 12 | Detection of rpoB, katG and inhA gene mutations in Mycobacterium tuberculosis clinical isolates from Chongqing as determined by microarray显示文摘 | C.Yao T.Zhu Y.Li L.Zhang B.Zhang J.Huang W.Fu | 2010 | Clinical Microbiology and Infection2010，，11： | 1 |
| 13 | Effects of long‐term repeated mineral and organic fertilizer applications on soil nitrogen transformations显示文摘 | J. B.Zhang T. B.Zhu Z. C.Cai S. W.Qin C.Müller | 2012 | European Journal of Soil Science2012，，1： | 1 |
| 14 | Stabilizing nanograined Fe-Cr alloy by Si-assisted grain boundary segregation显示文摘Intentional solute segregation at grain boundary(GB)can effectively stabilize the nanograined alloys by reducing the excess energy and mobility of GB,but it usually works for binary alloys with sufficient GB segregation tendency.Here,we found that the segregation of Cr can be enhanced in a nanostruc-tured Fe-8Cr alloy with insufficient GB segregation tendency through the interaction of another solute Si(1.0 wt.%).After surface mechanical grinding treatment and subsequent annealing,the nanograined Fe-8Cr-1Si is more thermally stable than the nanograined Fe-8Cr,which is mainly attributed to the Si-enhanced Cr segregation as observed by Super-X energy-dispersive X-ray spectroscopy(EDS)mapping system.With the grain refinement to nanoscale,the thermal stability is further improved due to the in-crease of Cr content at GBs and the precipitates formed at appropriate high temperatures.The present finding provides guidance for the development of advanced nanostructured ternary alloys. | X.F.Xu X.Y.Li B.Zhang | 2023 | Journal of Materials Science & Technology2023，，3： | 1 |
| 15 | INVESTIGATION ON THE DENSITY UNIFORMITY OF PRESSED PARTS BY LOW-VOLTAGE ELECTROMAGNETIC COMPACTION显示文摘Powder metallurgy is an efficient approach to fabricate varieties of high performance structure materials, function materials and special materials working under limited conditions. Research and development of new efficient technology to form high-density, high-performance and net shape parts is a key to widen application and development of powder materials. Recently, the low-voltage electromagnetic compaction (EMC) has been used by present authors to compacted copper, tin, aluminum powders and the products with 99% relative density have been acquired. In this work, the research has been extended to investigation on the density uniformity of pressed parts. The analysis results show that the density of the part compacted by low-voltage EMC decreases gradually in press direction as static compaction. But it is higher and more homogeneous. The density of the top part increases gradually from the center to the outer, which is just reversal of the bottom part. In some extent, the higher the discharging voltage is, the higher the density is and the more homogeneous the distribution is. In addition, repetitive compaction can improve the density of powder parts and the distribution uniformity. | S.Y.Huang Z.H.Meng Y.C.Li B.Zhang W.Ouyang | 2004 | Acta Metallurgica Sinica(English Letters)2004，17，6： | 1 |
| 16 | 查看详情显示文摘 | Wang L Zhao D Su Z Li B.Zhang Z.Shen D.J | | 0，，： | 1 |
| 17 | 查看详情显示文摘 | M.Sprinkle M.Ruan Y.Hu J.Hankinson M.Rubio-Roy B.Zhang X.Wu and C.Berger | | 0，，10： | 1 |
| 18 | 4IgB7‐H3 is the major isoform expressed on immunocytes as well as malignant cells显示文摘 | Y.‐H.Zhou Y.‐J.Chen Z.‐Y.Ma L.Xu Q.Wang G.‐B.Zhang F.Xie Y.Ge X.‐F.Wang X.‐G.Zhang | 2007 | Tissue Antigens2007，，2： | 1 |
| 19 | Electrospinning Zirconia Fiber From a Suspension显示文摘 | H. B.Zhang M. J.Edirisinghe | 2006 | Journal of the American Ceramic Society2006，，6： | 1 |
| 20 | Interim analysis of the effects of exenatide treatment on A1C, weight and cardiovascular risk factors over 82 weeks in 314 overweight patients with type 2 diabetes显示文摘 | L.Blonde E. J.Klein J.Han B.Zhang S. M.Mac T. H.Poon K. L.Taylor M. E.Trautmann D. D.Kim D. M.Kendall | 2006 | Diabetes Obesity and Metabolism2006，，4： | 1 |
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