Articles About Tungsten Products

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7.The Development of Tungsten Heavy Alloys' Invertigation

Abstract:Alloying and Mechanical Alloying are two important methods to develop and to inhance the properties of tungsten heavy alloys.The development of investigation in this field is mainly reviewed in this paper.
Key words:Tungsten Heavy Alloys,Alloying,Mechanical Alloying

钨基高比重合金性能的研究进展
摘要：合金化和机械合金化是改善和提高钨基高比重合金性能的重要方法，本文对这方面研究的国内外动态进行了综述。
关键词：钨基高比重合金、合金化、机械合金化

8.Recent research progress and prospect of armour-piercing projectile in China

Abstract:The research advances in high denisity tungsten alloy strengthening techniques of alloying,rotaryswage,torsional deformation and hydrostatic extrusion are reviewed.The research status of the adiabtic shear mechanism and numerical simulation is also introduced.The latest research progress in special manufacturing techniques,including mechanical alloying for nanometer tungsten alloy composite powder,warm compaction and preoxided activation sintering,is introduced.Based on the analysis of some main problems existing in the development of high density tungsten alloy for armour-piercing projectile,the future research directions,tactics and measures are put forward.
Key words:armour-piercing projectile,high density tungsten alloy,research status,research direction

我国穿甲弹用钨合金研究的最新进展与展望
摘要：综合介绍了我国近年来对穿甲弹用高密度钨合金实施添加微量元素合金化强化和旋转锻造、扭转变形、静液挤压等形变强化的研究进展，以及对于绝热剪切机理和数值模拟计算的研究现状，并介绍了机械合金化制备纳米钨合金复合粉末、温压成形及预氧化活化烧结等特种制备技术方面的最新试验研究进展。通过全面分析目前我国穿甲弹用高密度钨合金试验研究中存在的一些主要问题，提出我国穿甲弹用高密度钨合金今后研制的主攻方向，以及促进高性能穿甲弹用钨合金研制应采取的策略与措施。
关键词：穿甲弹、钨合金、研究现状、发展展望

9.The Affect to Tungsten-base High-density Alloy's Micro Tussues and Functions of Nickel's Adding Way

Abstract:The paper studies 4 adding-ways for Ni added to W-base high-density alloy.The result indicates that Ni adds alloy with common reduction addiny way.The alloy has good activaced sintering action in liquid-phase sintering,reduces alloy's sintering timperature,crytaling grain is very small,which aviods forming fragile phase WNI4 between metal and has rather good physics mechanics functions.
Key words:High-density alloy activated sintering

镍的添加方式对钨基高比重合金显微组织和性能的影响
摘要：对镍加入到钨基高比重合金中的四种方式进行了研究。结果表明，镍以共还原法的方式加入，所得合金在液相烧结时的活化作用大，降低了合金的烧结温度，钨晶粒微细，仿上了脆性相WNi4金属间化合物的形成，同时合金具有较高的物理和力学性能。
关键词：高比重合金、活化烧结、粉末冶金、钨基合金

10.Deformation Strengthening of High Density W-Ni-Fe Alloys

Abstract:The correlation among the degree reduction mechanical properties and microstructure of three W-Ni-Fe alloy with different W contents has been investigated in deformation strengthening process.
The experimental results showed that the strength and hardness of the deformed alloys invreased with degree of deformation.Moreover,the deformation strength-ening effect of the higher W content decreased as the deformation was higher than 15% and the W grains were ahangrated decreased as the deformation in the deformed alloys.The cleavage failur across W grains became the main mode of fracture and the slip bands emerger on the fracture face.The optimal temperature of vacuum annealing of vacuum annealing of deformed alloys,and the characteristics and mechanism of deformation of biphase W alloys have been discussed in this paper as well.
Key words:high density W alloy,deformation strengthening,mechanical property,deformation mechanism,microstucture.

高比重W—Ni—Fe合金的变形强化
摘要：在三种钨含量的W-Ni-Fe合金变形强化过程中，研究了变形量呵力学性能与显微组织之间的关系。试验结果表明：随着钨合金变形量的增加，变形合金的强度和硬度亦增加，当变形量超过15%后，高钨含量合金的变形强化作用逐渐减小。在变形合金的显微组织中，钨颗粒沿棒料轴向明显拉长，同时解理断裂成为断口的主要形式，并显现出钨合金断面上的滑移带。本文还讨论了变形合金在真空下，最佳调质退火温度和两相钨合金的形变特点、变形机制等。
关键词：高比重钨合金、变形强化、力学性能、变形机制、显微组织

11. Contact Materials Applied for Vacuum Interrupter

Abstract:This paper describe the requirements and charateristics of contact material for vacuum interrupter,demonstrates some of common contact materials to be used in different kind of vacuum tinterrupters,such as CuTeSe,CuCr and AgWC in recent years.In the final,introduces the development and research works of news contact materials in domestic and international.
Key words:Contact materials,Vacuum interrupter,Development and research

用于真空开关的触头材料
摘要：本文分析了用于真空开关的触头材料的要求和性能，阐述了最近几年来常用于各种真空开关中的触头材料，如CuTeSe、CuCr和AgWC等，文章最后还介绍了国内外正在开发和研究的新触头材料的情况。
关键词：触头材料、真空开关、开发和研究

12. Structure/Property and Process of Tungsten Heavy Alloy

Abstract:In this paper,the structure/property relationshio in sintered tungsten heavy alloy is reotewed and the influences of tungsten grain size,contuguity,tungsten phase content structure unformity pore size and porosity impurtes segregation and second phase percipitation to interface on properties of the alloy are also mainly described.The microstructure and propertues could be improved through process.
Key words:tungsten heavy alloy,micristructure,property,process

高比重合金显微组织,性能与工艺
摘要：阐述了高比重合金的显微组织与性能的关系，着重讨论了W晶粒大小、W颗粒链接度、W相含量、组织均匀性、孔隙大小、界面杂质偏析与第二相析出等对合金性能的影响。通过工艺的改进可以改变显微结构，从而改进合金的性能。
关键词：高比重合金、显微组织、性能、工艺、合金、钨晶粒

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