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中国有色金属学会会刊：英文版 1995年第2期5卷 61-65,75页

作者： Zhang, Yi Jin, Jialing Ji, Zhiqiang (shanghai Iron and Steel research institute, shanghai 200940) shanghai Iron and Steel research Inst Shanghai China

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关键词： TiNiCu shape memory alloy two-stage martensitic transformation

Behavior of Medium-frequency Core Loss in Fe-based Nanocrystalline Soft Magnetic Alloys

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Journal of Materials Science & Technology 2000年第3期16卷 332-336页

作者： Yanzhong ZHANG, Huijuan JIN and Ying SHI (research Centre, shanghai Iron and Steel research institute, shanghai 200940, China) research Centre Shanghai Iron and Steel Research Institute Shanghai 200940 China

The dependences of the power loss per cycle on frequency have been investigated in the ranges of 100 Hz<= f<=25000 Hz and 0.1 T< =Bm <=1.0 T for three main original magnetic states in five sorts of Fe-based nanocrysta... 详细信息

The dependences of the power loss per cycle on frequency have been investigated in the ranges of 100 Hz25000 Hz and 0.1 T< =Bm <=1.0 T for three main original magnetic states in five sorts of Fe-based nanocrystalline soft magnetic alloys. The measured and calculated results showed that the total power loss per cycle clearly exhibited a nonlinear behavior in the range below 3 kHz～5 kHz depending on both the magnetic state and the value of Dm, whereas it showed a quasi-linear behavior above this range. The total loss was decomposed into hysteresis loss, classical eddy current loss and excess loss, the obvious nonlinear behavior has been confirmed to be completely determined by the dependence of the excess loss on frequency. It has been indicated that the change rate of the excess loss per cycle with respect to frequency sharp decreases with increasing frequency in the range below about 3 kHz～5 kHz, wherease the rate of change slowly varies above this range, thus leading to the quasilinear behavior of the total loss per cycle. In this paper, some linear expressions of the total loss per cycle has been given in a wider medium-frequency segment, which can be used for roughly estimating the total loss.

关键词： Behavior of Medium-frequency Core Loss in Fe-based Nanocrystalline Soft Magnetic Alloys Core Fe high

Magnetic Properties and Applications of Newly-developed Fe_(73.5)Cu_1Nb_(1.5)V_(1.5)Si_(13.5)B_9 Alloy

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Journal of Materials Science & Technology 1998年第6期14卷 538-542页

作者： Yanzhong ZHANG (Major R&D Lab. for Functional Metal Materials, shanghai Iron and Steel research institute, shanghai 2O0940, China) Major R and D Lab. for Functional Metal Materials Shanghai Iron and Steel Research Institute Shanghai 200940 China

The synthetical soft magnetic properties including d.c. and a.c. magnetic properties and pulse magnetic property are reported for a newly-developed nanocrystalline Fe73.5Cu1 Nb1.5V1.5Si13.5B9 alloy The new alloy possesses high d.c. relative initial permeability of 12.5×104 and low coerciv ity of 0.54 A/m. Under the conditions of Bm=0.3 T, f=100 kHz and Bm=0.2 T, f=200 kHz the core losses of the new alloy are 543 kW·m-3 and 834 kW.m-3, respectively which can be compa rable with those of nanocrystalline Fe73.5Cu1Nb3Si13.5B9 alloy. The analyses of core losses have been carried out in the wider range of f=20～104 kHz and Bm=0.0025～0.8 T and the approxi mate expression P(kW·m-3)=1.803 B:f1.77 has been obtained. The analyses of core losses in the range of f=20～104 kHz and Bmf=(10～40)×103(***) have shown that the core loss and the corresponding amplitude permeability roughly vary as P = 2.347×10-6(Bmf)1.97f-0.2231 and μa = 9.56× 105f-0.7464, respectively for the given product B.f. Some practical applica tions have also been mentioned.

关键词： Cu1Nb Si Magnetic Properties and Applications of Newly-developed Fe B9 Alloy

Intermediate energy light sources and the SSRF project

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Nuclear Science and Techniques 2003年第1期14卷 1-8页

作者： ZHAO Zhen-Tang(shanghai institute of Nuclear research, the Chinese Academy of Sciences, shanghai 201800) shanghai institute of Nuclear research the Chinese Academy of Sciences Shanghai 201800

Advances in insertion device technology, top-up operation and superconducting RF cavities make it possible to generate high brightness X-ray with intermediate energy light sources, which leads a new trend in designing and constructing third generation light sources around the world. The development status and the remarkable technical features of intermediate energy light sources are reviewed, and the main SSRF properties are described in this paper.

关键词：软X射线光源 SSRF 核技术上海同步辐射装置应用电子应用光束稳定性化学结构结构分析

THREE NEW Fe-BASED MICROCRYSTALLINE ALLOYS WITH SUPERIOR MAGNETIC PROPERTIES

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Acta Metallurgica Sinica(English Letters) 1992年第12期5卷 502-511页

作者： ZHANG Yanzhong NIAN Suzhen shanghai Iron and Steel research institute shanghai Iron and Steel research Inst Shanghai China

Three new Fe-based microcrystalline alloys,i.e.,Fe_(73.1)Cu_(1.2)Nb_(3.2)Si_(12 5)B_(10), Fe_(73)Cu_1Nb_(1.5)Mo_2Si_(12.5)B_(10) and Fe_(73)Cu_1Zr_3C_(0.5)Mo_Si_(12.5)B_(10),were developed with su- perior magnetic properties.e.g.,high relative initial permeability of μ_i^15×10~4,low coercivity of H_c1.0A/m,high effective permeability and low core losses in a consid- crable wide frequency range and high pulse-magnetic permeability under narrow pulse. The optimum value of relative effective permeability,μ_5~1 is 16×10~4 under condition of f=1 kHz and H_m=0.4 A/*** optimum values of core loss reach 57.9 30.2 and 68 W/kg under condition of f=50.100.100 KHz and B_m=0.5,0.2,0.3 T,respectively. These three alloys have superior stability of magnetic *** permeability may be not changed during heating at 130℃ up to 216 *** main crystalline phase is ordered phase Fe_((75)+y)Si_((25)-y) which is ultrafine particles of average size 10—20 nm.

关键词： microcrystalline alloy relative initial permeability effective permeability coercivity core loss ultrafine particle

The Effect of Annealing Processes on Fish-Scaling Resistance in V-Ti-N Microalloyed Low Carbon Steel Sheets for Enameling

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Journal of Iron and Steel research International 2011年第S1期18卷 452-458页

作者： SUN Quan-she 1,XU Chun 2 (1.Baosteel research institute,Baoshan Iron and Steel Co.,Ltd.,shanghai 201900,China 2.Material Engineering Department,shanghai institute of Technology,shanghai 200233,China) Baoshan Iron & Steel Co Ltd Baosteel Res Inst Shanghai 201900 Peoples R China shanghai Inst Technol Dept Mat Engn Shanghai 200233 Peoples R China

Annealing process will have greatly influence on microstructure of V,Ti and N microalloyed low carbon steel *** this paper,the experimental steels with given amount of V,Ti and N elements were annealed at 4 routes to simulate batch annealing and continuous annealing processes,*** enameling tests for the annealed steel sheets were undergone in same enameling and firing processes to study the relationship between microstructure and *** result shows that the cold-rolled steel sheets annealed at 750 ℃for 6 minutes even for 30 minutes exhibit excellent fishscale resistance.

关键词： fishscale resistance enameling steel sheet annealing process

Steady-state responses of axially accelerating viscoelastic beams: Approximate analysis and numerical confirmation

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Science China(Physics,Mechanics & Astronomy) 2008年第11期51卷 1707-1721页

作者： CHEN LiQun1,2 & DING Hu2 1 Department of Mechanics, shanghai University, shanghai 200444, China 2 shanghai institute of Applied Mathematics and Mechanics, shanghai 200070, China Department of Mechanics Shanghai University Shanghai 200444 China shanghai institute of Applied Mathematics and Mechanics Shanghai 200070 China

Nonlinear parametric vibration of axially accelerating viscoelastic beams is inves-tigated via an approximate analytical method with numerical confirmations. Based on nonlinear models of a finite-small-stretching slender beam moving at a speed with a periodic fluctuation, a solvability condition is established via the method of multiple scales for subharmonic resonance. Therefore, the amplitudes of steady-state periodic responses and their existence conditions are derived. The amplitudes of stable steady-state responses increase with the amplitude of the axial speed fluctuation, and decrease with the viscosity coefficient and the nonlinear coefficient. The minimum of the detuning parameter which causes the existence of a stable steady-state periodic response decreases with the amplitude of the axial speed fluctuation, and increases with the viscosity coefficient. Nu-merical solutions are sought via the finite difference scheme for a nonlinear par-tial-differential equation and a nonlinear integro-partial-differential equation. The calculation results qualitatively confirm the effects of the related parameters pre-dicted by the approximate analysis on the amplitude and the existence condition of the stable steady-state periodic responses. Quantitative comparisons demonstrate that the approximate analysis results have rather high precision.

关键词： nonlinearity parametric vibration axially accelerating beam method of multiple scales numerical confir-mation

Observation on Emitting Dislocation from Grain Boundary by TEM

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Journal of Materials Science & Technology 1998年第1期14卷 75-76页

作者： Junlin YIN (shanghai Key Lab. of Metal-Founctional Materials, shanghai Iron and Steel research institute, shanghai 200940, China) shanghai Iron & Steel Res Inst Shanghai Key Lab Met Founct Mat Shanghai 200940 Peoples R China

The observation on emitting dislocations from grain boundaries by TEM during Cu elongation has been performed. It is shown that there exists the 'ledge' at the grain boundaries in fee pure Cu, which is able to emit di... 详细信息

关键词： Observation on Emitting Dislocation from Grain Boundary by TEM Figure

EFFECT OF γ-IRRADIATION ON CuZnAl SHAPE MEMORY ALLOY

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Acta Metallurgica Sinica(English Letters) 1992年第5期5卷 345-348页

作者： ZHANG Guilin XU Feng LIU Wenhong YU Fanghua shanghai institute of Nuclear research,Academia Sinica,shanghai,ChinaWANG Jingcheng SHAO Zichang shanghai Iron and Steel research institute,shanghai,China shanghai Inst of Nuclear research Acad Sinica Shanghai China

Effect of γ-irradiation on the shape memory alloy CuZnAl has been studied by the techniques of TEM,positron annihilation etc..The martensitic transformation temperature of the alloy increases obviously ofter γ-irradiation at a dose of 2×10~7 Gy but not for a dose of 1× 10~7 *** shape memory effect in both irradiated alloys remains unaffected.

关键词： γ-irradiation shape memory alloy martensitic transformation temperature Cu-Zn-A1 alloy