材料期刊网

Creep-fatigue lives prediction and sensitivity study of 316H at 550°C

Zhichao FAN

金属学报(英文版)

In Volume 2/3 of R5 ``An assessment procedure for the high temperature response of structures", the strain based ductility exhaustion method is suggested to calculate the creep damage of stress concentration region, which involves description of creep dwell initial stress, stress drop and creep duct...

关键词: Creep

The crossover from parallel shift to fan-shape broadening of the superconducting transition of La(1.44)Nd(0.4)Sr(0.16)CuO(4) films in magnetic fields

Superconductor Science & Technology

In this paper we report the transport properties of c-axis-oriented superconducting La(1.44)Nd(0.4)Sr(0.16)CuO(4) films on LaSrAlO(4) substrates with different thicknesses in various magnetic fields parallel and perpendicular to the c axis of the films. It is found that with decreasing film thicknes...

关键词: high-temperature superconductors;crystal thin-films;flux motion;la2-xsrxcuo4;strain;insulator;dependence;behavior

Numerical Experiment of the Solid Particle Erosion of Bionic Configuration Blade of Centrifugal Fan

金属学报(英文版) doi:10.1007/s40195-012-0058-8

关键词:

BEHAVIOUR OF Ti IN AS-CAST MEDIUM MANGANESE AUSTENITIC STEEL

JIANG Qichuan LI Zhang WANG Shoushi HE Zhenming Jilin University of Technology , Changchun , China

金属学报(英文版)

The majority of Ti is found to be preferentially precipitated in the form of TiC from medium manganese steel melt.The TiC may contribute to the heterogeneous nuclei of fine austenite crystallization,to the retardation of dislocation movement as well as to pile-up and proliferate the dislocations,thu...

关键词: TiC , null , null

A single-phase spindle motor design for DVD application

D.R.Huang , T.F.Ying , L.T.Kuo , S.J.Wang , H.C.Huang , C. Y.Huang

材料科学技术（英文）

A single phase brushless spindle motor with innovative design has been developed for application in a DVD drive. The methods used to reduce the cogging torque and to improve the dynamic performance of this new design motor are proposed in this paper. The single phase brushless spindle motor is usual...

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Numerical Simulation of Temperature Field of Die Casting Dies

Xiang XUE , Zhiliang NING , Bide ZHOU , Chunhui ZHANG

材料科学技术（英文）

In this study, the Solidworks was used as pre-processor, which performed the three- dimensional solid construction and automatic enmeshment. The COSMOS was adopted as post- processor to display the temperature distribution and further to simulate the thermal stress distribution of dies. A software p...

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紫外光固化罩光漆用环氧丙烯酸酯树脂的合成及应用

陈云传 , 刘晓亚 , 熊万斌 , 陈明清 , 李华伟

材料保护 doi:10.3969/j.issn.1001-1560.2003.11.008

以酚醛型环氧树脂为原料,合成出低粘度环氧丙烯酸酯(EA)树酯,讨论了环氧树脂类型、催化剂用量等因素对反应及产物性能的影响,并用柔性单体--己内酯改性丙烯酸酯(FAn)替代通常的单官能度单体,对树脂产物进行了涂料配方的研究.

关键词: 紫外光(UV)固化 , 罩光涂料 , 环氧丙烯酸树脂 , 应用

Large magnetoresistance over an entire region from 5 to 380 K in double helical CoMnSi compound

Journal of Physics D-Applied Physics

A large magnetoresistance (MR) is observed in a double helical CoMnSi compound over the entire temperature region from 5 K to the maximum measuring temperature of 380 K, with the largest MR ratio of -18.3% at 245 K and the smallest MR ratio of -5.5% at 85 K at 5 T. This phenomenon is ascribed to two...

关键词: giant magnetoresistance;magnetic-structure;crystal;metals

A novel design of single-chamber SOFC micro-stack operated in methane-oxygen mixture

Electrochemistry Communications

In this paper, a novel design of single-chamber solid oxide fuel cell (SC-SOFC) micro-stack with star-shape was presented and operated successfully in methane-oxygen mixture. This stack consisted of four anode-supported single cells connected in series, and generated a maximum power output of 421 mW...

关键词: Solid oxide fuel cell;Single-chamber operation;Micro-stack;Methane-oxygen mixture;oxide fuel-cell;high-power-density;electrolyte;performance

Influence of surface finish on fatigue cracking behavior of reactor pressure vessel steel in high temperature water

Materials and Corrosion-Werkstoffe Und Korrosion

The low cycle fatigue behavior of a low-alloy reactor pressure vessel (RPV) steel was investigated in high temperature water. Main attention was paid to the effects of surface finish of specimens on fatigue cracking behavior. It was found that the influence of surface finish on fatigue resistance of...

关键词: environmentally assisted cracking;low-cycle fatigue;low-alloy;corrosion-fatigue;growth-behavior;carbon