1) dispersion strengthened lead

弥散强化铅
3) Dispersion strengthened

弥散强化
1.
The development state,manufacture technology,microstructure and properties,application of oxide dispersion strengthened copper alloys are generally reviewed.
简要概述了氧化物弥散强化铜合金的发展状况、制备方法、组织和性能特点以及应用前景。
2.
So, in this paper, a new method of making dispersion strengthened copper matrix composites is tried to resolve the present problems.
弥散强化铜基复合材料以其优异的性能而有着广泛的应用前景。
3.
The article aim at developing a kind of copper alloy material with high strength and good electric conductivity-dispersion strengthened copper alloy.
本文的目的在于采用机械合金化的方法研制一种高强度、高导电性铜合金材料——弥散强化铜合金。
4) dispersion strengthen

弥散强化
1.
The processes to manufacture dispersion strengthened Cu-TiB_2 composites by in situ methods,such as liquid-solid,solid-solid and liquid- liquid methods,were introduced.
介绍了固-液,固-固,液-液原位复合法制备弥散强化TiB2/Cu复合材料,并归纳总结了弥散强化铜合金的强化机理与导电机制。
2.
With Cu_20 as oxidizer, Al_2O_3 surficial dispersion strengthened copper alloy of various concentration of aluminum were produced by internal oxidation in argon atmosphere(1123-1273 K, 10 - 96 h).
以Cu_2O为氧化剂,在氩气保护下对不同w(Al)的Cu-Al合金表面进行弥散强化(内氧化温度为1123-1273K,保温时间10-96h),并对内氧化层的组织形貌进行了研究。
3.
Al 2O 3 surface dispersion strengthening of Cu-Al alloy was conducted by internal oxidation in argon atmosphere with Cu 2O as oxidizer at 1123K~1273K for 10~96 h.
以Cu2 O为氧化剂,在氩气保护下用内氧化技术对不同低Al含量的Cu Al合金表面进行了弥散强化处理(内氧化温度为112 3~12 73K ,保温时间10~96h) ,研究了硬化层的组织形貌及性能。
5) dispersion-strengthened

弥散强化
1.
The microstructure of alumina dispersion-strengthened copper alloy are investigated using transmission electron microscopy(TEM) and high-resolution transmission electron microscopy(HRTEM),and the effect factors on the dispersoids are analyzed as well.
用透射电镜(TEM)、高分辨电镜(HRTEM)观察了Al2O3弥散强化铜合金的微观结构,并分析了影响弥散相大小及分布的因素。
6) dispersion strengthening

弥散强化
1.
The results showed that the strengthening mechanism of the alloy as hot-extrusion was mainly dispersion strengthening and fine-crystal strengthening.
12Al2O3弥散强化铜合金的组织与性能。
2.
The contributions of Al2O3 particles to dispersion strengthening of the composites and the mechanisms of the nucleation, growth and coarsening of Al2O3 particles in dilute Cu - Al alloys during internal oxidation have been investigated.
Al2O3/Cu复合材料不仅具有和纯铜一样优良的导电、导热性能,而且由于弥散强化的作用使其拥有高的硬度和强度,特别是优越的高温强度,从而使其成为越来越重要的工程材料之一。
3.
solid solution strengthening, strain hardening, grain boundaries strengthening, dispersion strengthening, etc and the investigations on strengthening mechanism are reviewed.
回顾和总结固溶强化、形变强化、晶界强化及弥散强化等常用铂强化方法及其强化机制的研究进展 ,介绍典型强化铂材料如铂铑合金、ZGSPt(Pt Rh)、ODSPt(Pt Rh)和DPHPt(Pt Rh)等弥散强化材料的主要性能和用途 ,为选择和开发更好的铂强化方法、推动强化铂的应用提供参考。
补充资料:弥散强化
弥散强化
disPersion strengthening
弥散强化dispersion strengthening利用外来化学惰性的弥散粒子来强化合金的方法。惰性粒子一般是高熔点的氧化物,主要使用的是ThOZ和YZO3两种。这些氧化物粒子常以粉末冶金方式加入金属中,不与基体金属发生任何化学反应,因此不同于普通合金中时效析出的第二相粒子。1960年,美国国际镍公司首先利用这种方法在镍中加入TllO2获得TDesNi合金。由于弥散强化合金的高温强度非常高,但中、低温强度比较低,而且成本较贵,因此目前只在高温合金中得到商业应用,用于制作高温导向叶片和燃烧室零件,也有努力试图用作涡轮叶片材料。 惰性弥散粒子对合金的强化作用分以下两种。①直接强化:弥散粒子对位错运动起势垒作用,一般用位错绕越机制来说明。其强化效果可用下式表示 △r一Gb/L式中G为切变模量,b为位错柏氏矢量,L为粒子间距。②间接强化:形变热处理过程中第二相粒子影响合金基体的显微组织,尤其是晶粒的尺寸和形状而起作用。细化晶粒的室温强化作用符合哈尔一配奇(Hall一Petch)关系。(朱耀宵张天相)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条