正确认识粉末烧结材料屈服函数形状和性质，对于其塑性变形分析有重要意义。
It is important to plastic deformation analysis for we to understand correctly the geometrical form and properties of yield function of sintered powder materials.
分析了粉末烧结材料镦粗和复压工艺的致密效果，提出了闭式模锻工艺设计原则。
The densification effects of upsetting and repressing are compared, and a technology design principle for closed die forging is suggested .
阐述了粉末烧结材料塑性变形的基本性质，分析了粉末烧结材料现有屈服条件中存在的问题。
The basic properties of sintered powder materials in plastic deformation are explained. Some defects in present yield criteria of the materials are analysed.
介绍了铜钨粉末烧结材料的性能特点，以及用此材料制成的电极和导电咀在焊按生产中的使用效果。
The performance features of copper-tungsten sintered materials and operating effects of electrode and nozzle made of the materials in welding production have been introduced.
在粉末锻造中，压制零件一般加热到远低于该材料通常烧结温度的锻造温度，然后在闭模中锻造。
In powder forging an as-pressed component is usually heated to a forging temperature significantly below the usual sintering temperature of the material and then forged in a closed die.
被压实的材料置于炉内烧结，在高温下炉内环境可控，金属粉末熔合形成固体。
This compacted material is placed in an oven and sintered in a controlled atmosphere at high temperatures and the metal powders coalesce and form a solid.
这篇论文主要研究了用粉末注射成形工艺制造各种高性能与功能烧结材料时，需要的显微组织控制。
This paper focused on the microstructural controls needed for various high performance and functional sintered materials through powder injection molding process.
综述了添加元素对奥氏体不锈钢粉末压坯液相烧结行为及材料性能的影响。
The paper summarizes the effect of additives on the liquid phase sintering behaviour of the compact of austenitic stainless steel powder and the properties of resultant material.
介绍了粉末烧结体热复压试验用的设备、材料及方法。
The equipments of the experiment, the materials and the experiment method at the hot repressing of powder sintered preforms were introduced.
它是通过瞬间高能脉冲电流使粉末颗粒之间产生等离子放电，烧结制成高性能材料或制件。
It facilitates plasma discharge generated by transient high-energy pulse electric current among powder particles to prepare high-performance materials.
采用液相烧结法将爆炸压实后的钢结硬质合金粉末复合在碳钢表面，成功获得覆层材料。
Steel-bonded cemented carbide powder processed by explosive compaction was successfully bonded to the surface of carbon steel through liquid phase sintering.
针对粉末材料激光烧结设备成型质量不高的问题，进行了实验。
This paper studies the problem of the low manufacture quality of the laser sintering equipment for powder material by experiment.
采用含有机物的镍基高温合金原粉，用粉末烧结法制备了球形多孔高温合金材料。
The porous superalloy material with hollow spherical pores was fabricated by means of metal powder sintering using nickel-base superalloy powders.
本研究采用粉末烧结工艺将陶土分别同性能优良的高温熔融盐复合，成功地制备出蓄热密度高、耐腐蚀性好且成本低廉的相变蓄热复合材料。
We have succeeded in making a kind of phase change material (PCM) of high thermal storage density, good corrosion-resistant performance and low cost of preparation by powder sintering method.
通过烧结铁圆柱试样单向压缩试验，验证了粉末冶金烧结材料广义塑性屈服条件的合理性和适用性。
Based on the single axial compression of sintered iron cylinder specimens, the rationality and applicability of generalized yield criterion are validated for sintered powder metallurgy materials.
并对烧结硬化材料、软磁复合材料、磁致热材料等粉末冶金新材料进行了评述。
New PM materials such as sinter hardening materials, soft magnetic composites and magneto calorific materials etc. are reviewed.
本文还分析了这种钢镀覆石墨粉末及其烧结材料的金相结构，解释了材料的高导电性的原因。
Metallographic structure of copper coated graphite powder and sintering material were analyzed and the reason of the material having high conductivity was illustrated.
采用粉末冶金技术制备了一种低膨胀高导热支撑材料(简称DG合金)，研究了烧结工艺对合金组织和性能的影响。
A support material with low expansivity and high conductivity, called DG alloy, was prepared by powder metallurgy. The effects of sintering process on its properties and microstructure were studied.
主要进行了粉末粒度及形貌的分析选择研究，追孔剂的添加量与多孔镍载体性能关系的研究、烧结工艺对材料性能影响的研究。
Main researches include the analysis of the powder size and pattern, the effects of additive percentage, pressing, sintering processes on the final properties.
着重研究了粉末粒度与成型压力对钨铜材料烧结致密度的影响。
The influence of powder grain size and forming pressure are discussed for the performance of W-Cu composites.
综述了选择性激光烧结金属粉末材料和纳米粉末材料的研究进展。
Research progresses of metallic powder materials and nano powder materials fabricated by selective laser sintering (SLS) were reviewed in brief.
并综述了功能梯度材料目前常采用的一些制备方法及使用情况，包括火花等离子烧结技术、粉末冶金法、离子结构工艺等。
And, some preparation methods of FGM and their applications are dealt with, including spark plasma sinter technology, powder metallurgy method and plasma structure craftwork.
对于各种粉末材料在选择性激光烧结成形过程中温度场的模拟与预测，是合理选择其烧结工艺参数的基础。
The simulation and prediction of sintering temperature field in SLS process play a basic role in determining the optimal processing parameters for different powder materials.
然而，纳米硬质合金粉末烧结过程中WC晶粒的快速长大行为使得难于获得真正意义上的纳米晶硬质合金块体材料。
However, the rapid intrinsic growth characteristic of nanometer WC grain during sintering process lead nano-grained cemented carbides with excellent mechanical performances is not acquired.
考虑到放电等离子烧结的一步成形工艺，将粉末材料的热电性能参数假设为温度和密度的双变量函数。
Considering the single step processing technique of SPS, the thermal-electrical properties parameters of powder material were assumed as bivariate functions of temperature and the relative density.
通过气喷气冷法制取合金粉末，用压制后真空烧结的方法制备高铝锌基合金粉末冶金材料。
The alloy powder was produced by gas atomization. P/M material samples were made by pressing and sequent vacuum sintering.
微孔材料的传统制造方法有粉末烧结法、熔融拉伸法、径迹蚀刻法、非溶剂致相分离法等。
The traditional manufacturing methods include powder-sintering, melt-spinning and cold-stretching, thermally induced phase separation, state track etching, non-solvent induced phase separation, etc.
用粉末烧结法制备了孔结构为球形中空孔和线型中空孔的镍基多孔高温合金材料。
The porous superalloy material with oriented linear porosity was fabricated by metal powders sintering.
用粉末烧结法制备了孔结构为球形中空孔和线型中空孔的镍基多孔高温合金材料。
The porous superalloy material with oriented linear porosity was fabricated by metal powders sintering.
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