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The Oxidation Behavior of Vanadium Alloys in Air at Elevated Temperature

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中国核科技报告 2002年 948-953页

作者： CHEN Jiming xu Ying xu zengyu

Vanadium alloy is one of the most important candidate structural materials for a fusion reactor. Its main advantages over other candidates are its low activity feature and feasible properties at high temperature[1-4].... 详细信息

关键词： Vanadium alloy High temperature oxidation

Safe-Disposing of NaK in LMEL for Facility Modified

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Southwestern Institute of Physics Annual Report 2005年第1期 117-118页

作者： PAN Chanjie xu zengyu

A series of experimental studies on MHD effects in circular and rectasgular pipe of conducting and insulating wall, have been carried out on liquid metal experimental loop （ LMEL ）,sodium potassium alloy （ NaK ）... 详细信息

关键词： Liquid Metal Gafe-disposing

The Influence of Hydrogen on the Tensile Properties of Vanadium Alloy

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中国核科技报告 1999年第S3期 90-91页

作者： CHEN Jiming YANG Lin xu zengyu

Vanadium alloy has the potential advantages over other structural materials for fusion application. It is not only good in high temperature property, high resistance to neutron irradiation and feasibility of fabrication, but also a typically low activation material. However, there still exist some key problem for its fusion application. They are hydrogen embrittlement, easily oxidizing at elevated temperature and neutron irradiation hardening of the alloy. In this paper, the influence of hydrogen on the tensile properties of two vanadium alloys was studied.

关键词： Vanadium alloy Tensile property Hydrogen embrittlement

Experimental Investigation on MHD Instabilities of Free Surface Jet and Film Flow for Liquid Metal Divertor/Limiter Options

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Southwestern Institute of Physics Annual Report 2006年第1期 152-153页

作者： xu zengyu PAN Chanjie KANG Weishan

1 Introduction Recently, it is rising of the study of liquid metal free surface as the divertor, limiter and the first wall in a fusion device. Many special facilities are employed to investigate MHD-related issues of free surface jet and film flow, and many results are carried out on theory and experiments . But, there are still not enough experimental data to well understand magneto- hydrodynamics （MHD） instability. For theory, the greatest challenge is how to develop a modeling to expect and understand free surface MHD phenomenon, and for experiments is how to diagnose the flow state of liquid metal free surface flow in magnetic field.

关键词： MHD 截面液态金属原子核

Experimental Results on Performance Improvement of Doped Carbon-base Materials

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中国核科技报告 2002年 926-929页

作者： xu zengyu Joint Research Group

Carbon-base materials is one of candidate plasma facing materials and have been widely used in current tokamak facilities in the world. But some defect properties are presented on high yield of chemical sputtering, high yield of radiation enhancement sublimate (RES), cracking after heat flux in divertor and so on. These characters are related to the interstitial carbon atom producing and mobile, so it can

关键词： Carbon-base materials Chemical sputtering Thermal shock

Numerical Simulation of MHD Jet Flows

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Southwestern Institute of Physics Annual Report 2004年第1期 109-110页

作者： KANG Weishan xu zengyu PAN Chuanjie

Liquid metal free surface flows （films, jets and droplets） are considered as diverter/ limiter system and first wall in fusion reactor, but the knowledge Of liquid metal free surface under a non-uniform magnetic field is very limited. In this article, the stability of a jet flow under a gradient magnetic field is investigated, and its MHD effects are the top concern. Based on numerical simulation and experimental results, a simplified model is developed to analyze the MHD effects of the jet flow and to explain the reason why it can keep stable under a strong non-uniform magnetic field.

关键词： MHD Liquid metal Jet flows

Primary Results of Liquid Metal Free Surface Jet Research

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Southwestern Institute of Physics Annual Report 2004年第1期 101-102页

作者： xu zengyu PAN Chanjie KANG Weishan

The liquid metal free surface innovation concept have been considered as liquid metal devices of divertor/limiter and tile of first wall in fusion device because it can withstand over 50 MW·m^2 heating load, is easily renewed by circulation and many overcome neutron irradiation damage life time limit. There are three types of free surface in the innovation concept as film, curtain （jets or drops） and capillary. The free surface jet is played a more attention at present. But it is no so clear and only a few available data that their magneto-hydrodynamics （MHD） instabilities, interaction with plasma and exclusion of the particles （ions, Alpha particles and so on） from liquid metal, in despite of many liquid metal free surface facilities built and operated especially in US in last two years. Recently, some primary results are carried out at LMEL facility at Southwestern Institute of Physics.

关键词： LM free surface MHD instability The gradient magnetic field

The Brittle Fracture Mechanism of Vanadium Alloy with High Level of Oxygen and Hydrogen

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中国核科技报告 2002年 934-939页

作者： CHEN Jiming xu zengyu YANG Lin LIU Xiang

Hydrogen embrittlement is one of the key issues for the vanadium alloys for fusion application[1] . Previous study has shown that V4Ti alloy had better properties against the embrittlement than V4Cr4Ti and V4Ti3A1 all... 详细信息

关键词： Vanadium alloy Hydrogen embrittlement Oxygen effect

Superficial Layer MHD Effect and Full-Cover Free Surface Flow Characterizing

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World Journal of Nuclear Science and Technology 2014年第2期4卷 65-72页

作者： zengyu xu Chuanjie Pan Xiujie Zhang Jiming Chen Southwestern Institute of Physics Chengdu China

Up to now, no a real full-cover liquid metal (LM) free surface flow have been successfully used in magnetic fusion devices as MHD instability and unavoidable rivulet flow. Recently, after we carried out a guidable free curve-surface flow on theoretically and experimentally, seeking for other way to get a full-cover free surface flow is also in implementing. The superficial layer MHD effect in free surface flow is experimentally observed. After compared and analyzed the characteristic parameters of the free surface flow, the conditions of full-cover free surface flow are found. Meanwhile, the new two parameters of surface cover ratio and rivulet flow index are introduced to characterize the flowing characteristic of the full-cover free surface flow under magnetic field. According to the analysis rule, for different liquid metal, there are the different unique conditions to meet full-cover free surface flow under magnetic field. This may be a way to solve free surface flow major MHD key issue for LM PFCs.

关键词： Liquid Metal Free Surface MHD Effect Divertor/Limiter Fusion